Gain extra benefits by becoming a Supporting Member Click here find out how!
Classic Performance Products Classic Parts
American Auto Wire Classic Industries
Join the Community todayDanchuk Catalog
Hellwig Products IncPerformance Rod & CustomEcklers AutoMotive
Nu-Relics Power Windows
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy



 Page 2 of 2 <12
Username Post: 3 wire alternator and then engine problem        (Topic#356611)
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
06-17-19 04:49 AM - Post#2768631    
    In response to Shepherd

Yes I meant before. And no. That’s what’s weird. It’s running it’s best. I’ve tuned with a vacuum gauge a million times. This motor and others. Always went for greatest, steadiest vacuum and got the best idle as a result but this is different


After a 15 mile drive last night, got home and it was running fine. No more stumbling up the driveway. Wonder if it was the vacuum leak? Or the 35 year old alternator? Both were fixed over the weekend. I put in a new one wire (old one was under warranty!!!!)

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


Edited by drew1987 on 06-17-19 04:50 AM. Reason for edit: No reason given.

 


Shepherd 
Frequent Contributor
Posts: 1819

Loc: Lake George, NY
Reg: 11-11-15
06-17-19 06:02 AM - Post#2768639    
    In response to drew1987

Great, maybe some fouled plugs,and/or low ignition voltage causing fouling? Always nice to know the resolution.



 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
06-17-19 08:06 AM - Post#2768664    
    In response to Shepherd

Well, this is a classic case of fixing too many things before checking if it worked

I cleaned the spark plugs and re-gap them, That didn’t solve the problem.

I fixed the intake manifold gasket leak, and also got rid of the 35-year-old incorrect alternator, now it seems better, so I’m not sure which of the two it was

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


Edited by drew1987 on 06-17-19 08:06 AM. Reason for edit: No reason given.

 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
07-24-19 09:01 AM - Post#2771445    
    In response to Shepherd

Meant to report back here sooner. This has never really gone away. The longer I am out and about, the worse the idle gets... usually not enough to be that noticeable but last night i ditched my local club ice cream social cause it was 25 miles away and I didn't want to break down. Irritated becuase I cant find out what it is. Its not the control module or coil, plugs, or wires (no arcing so assume the 3,000 mile wires are good)

I did the intake manifold gasket, the carb base gasket, increased the fuel pressure (installed regulator last year - figured that could be it)....



The other day it was real bad. I drove about 4 miles, purchased something, and drove home (i did light up the tires pulling out - oops) and when i got in the driveway, it was idling lumpy like a cam, like it was going to stall. A little throttle and it just about dies then springs to life and revs, jerking the car forward....

I almost wonder if I should bypass that fuel pressure regulator? I installed that trying to reduce the gas smell, thinking it was running rich as gas was being forced by the needle/seats... anything else would be helpful.


Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
40grit 
Contributor
Posts: 544
40grit
Age: 74
Loc: Chattanooga, Tn
Reg: 07-08-13
07-25-19 12:20 AM - Post#2771504    
    In response to Shepherd

Drew, Did you remember to disconnect the vacuum advance when you timed it?

Also, are you using ported vacuum up on the carburator or are you using manifold vacuume fot the timing?

John

Just Slightly Abrasive


 
50hotrod 
"7th Year" Silver Supporting Member
Posts: 1016
50hotrod
Age: 62
Loc: Wisconsin
Reg: 07-25-11
07-25-19 06:03 AM - Post#2771514    
    In response to 40grit

Drew,
Just a thought I have.

You have always (to my knowledge) driven your car nicely in the past. From your posts, it seems you are getting a little more aggressive with your "hotrod". Not a bad thing, just an observation.

What might be happening is you have some dirt or sediment sitting in the bottom of the carburetor float bowel. When driving aggressively, it might be getting agitated enough to cause it to get into the jets....causing the erratic running condition coming and going.

This is just a guess. I have experienced this in a similar situation.

How I diagnosed it was to choke off the air flow to the carb, while running, by putting my hand over the top of the air horn. This would force the carb to draw gas hard thru the jets....clearing the fine debris and it would then run good for a while after that.

1950 CHEVY 2 DOOR 327 TRI POWER FENDERWELL HEADERS HEIDT FRONT SUSPENSION 700R4 TRANS 411 REAR



 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
07-26-19 02:38 AM - Post#2771619    
    In response to 50hotrod

I will try that!

Over the years I’ve gotten on it here and there - it almost begs me to. It’s the most powerful car I’ve ever had. If I remember the night this started, I took a left onto a wide, straight road with no traffic and just stayed in the throttle. Won’t tell you how fast I was going when I looked down. But I drove for an hour after that with no issue. But when I got home...


I think it was before all this that I tamed the timing a
But. Better idle albeit less vacuum. I wondered about heat. I have a 185°f thermostat. Was going to try a 160






Now you’ve got my wheels turning. When the symptoms start, it smells like this weird smell it made the time I ran out of gas (two times in my life, both in this car and there is NOTHING wrong with the gas gauge). Almost like a kerosene heater

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
tommy49 
"5th Year" Silver Supporting Member
Posts: 2626
tommy49
Loc: Kaleva, Michigan
Reg: 09-28-12
07-26-19 04:50 AM - Post#2771624    
    In response to drew1987

Last fall & this spring, I was plagued with a bad running motor and was convinced it WASN'T a carb issue. I did valve adjustments several times, new coil, removed the Pertronix, new points condenser, everything, I couldn't accept the fact it could be the carb that I meticulously rebuilt. Out of options, I built a carb out of three junk carbs, and the engine ran fine. Never take anything of granted.

Tommy

49 Deluxe Sport Coupe, 55 235, 700r4, Blazer rear axle, 4 wheel power disc brakes.

https://www.flickr.com/photos/tommyfortynine /album...




 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
07-27-19 04:54 AM - Post#2771706    
    In response to tommy49

I am thinking that may be it. I am going to order a rebuild kit and go through it. Change the fuel filter while I’m at it

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
07-27-19 04:55 AM - Post#2771707    
    In response to drew1987

After I do a 160° thermostat

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
08-20-19 10:14 AM - Post#2773673    
    In response to Shepherd

Hey sorry I dropped the ball here i must not be subscribed. Yes i meant before, and its down to this:

It literally idles perfect when it starts. It gets worse at it warms up, but not too bad... just off of idle is terrible... if I increase from idle by 100 RPMs or so, the motor shakes and sort of stumbles, but at a constant, as long as I hold the RPMs there... once I get to about 1,000 RPMs, everything is fine. Its driving me crazy

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
08-30-19 07:19 PM - Post#2774526    
    In response to drew1987

Yup.

Attachment: 2C241586-480E-4B74-9638-4A960F5EEDE2.jpeg (2.32 MB) 3 View(s)




Attachment: D1027762-EFDD-42DD-A89C-83D4006B4083.jpeg (1.03 MB) 2 View(s)




Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
one4dad 
"6th Year" Silver Supporting Member
Posts: 1525
one4dad
Age: 76
Loc: Baton Rouge La
Reg: 01-17-10
08-31-19 06:26 AM - Post#2774551    
    In response to drew1987

So I assume it just quit and left you stranded?

Bill Wilson 50 styleline deluxe 2 door sold,- 51 styleline Deluxe 2 door ,'56 235 with dual carter webers on an Offenhauser intake, Fenton headers, 56 chevy rear end and 700R4 transmission.


 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
09-01-19 05:37 AM - Post#2774611    
    In response to one4dad

Yea. Only the second time in 5 years 11,000 miles. Not bad for a 70 year old car I guess. One other time but it was physical damage and I got back on the road.

I puts for 20 minutes but ended up seeing my carb dropping from the front two jets down the tubs, AND out the side. Tells me some shmutz made it past the fuel filter and clogged something (needle and seat?) open perhaps. At this point, I’m in professional clothing without the tools for opening the carb even if I wanted to



Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
tommy49 
"5th Year" Silver Supporting Member
Posts: 2626
tommy49
Loc: Kaleva, Michigan
Reg: 09-28-12
09-01-19 06:24 AM - Post#2774614    
    In response to drew1987

"Professional clothing"? You mean a suit, because this also professional clothing.





Attachment: work_shirt.JPG (177.85 KB) 1 View(s)

Tommy

49 Deluxe Sport Coupe, 55 235, 700r4, Blazer rear axle, 4 wheel power disc brakes.

https://www.flickr.com/photos/tommyfortynine /album...




 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
09-01-19 07:59 PM - Post#2774647    
    In response to Shepherd

Tommy im kakis and a dress shirt. I have a tie collection I never want to wear again. Suits are for special occasions. I work on cars in light colored clothes no longer fit for daily use and I don’t spend money on any of it ;-)

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
09-01-19 08:02 PM - Post#2774648    
    In response to drew1987

By the way- as irritating as the whole experience is, even on tow truck, i love the lines of that car. It’s a keeper

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
tommy49 
"5th Year" Silver Supporting Member
Posts: 2626
tommy49
Loc: Kaleva, Michigan
Reg: 09-28-12
09-02-19 05:43 AM - Post#2774659    
    In response to drew1987

  • drew1987 Said:
Tommy im kakis and a dress shirt. I have a tie collection I never want to wear again. Suits are for special occasions. I work on cars in light colored clothes no longer fit for daily use and I don’t spend money on any of it ;-)



I was commenting to the phrase "professional clothing". The term "professional" seems to identify those that wear "dress clothing" and work in an office-type environment. I consider myself a professional and was displaying my professional attire. As for my workwear in the shop, GM shirts and cargo pants. I don't own any jeans.
I feel your pain on coming home on the "hook". Been there. On the way to a bicycle tour, we ran over a beauty ring on the freeway with a van, punched a hole in the tank. Pulled into a gas station and ask for speedy dry and a container. Because of the leaking gas, they called 911. Two fire trucks and the Sheriff showed up, along with the gawkers! You'd think the gas station was on fire! What a circus! In the end, it was a long miserable 60 mile ride in an old, ratty tow truck.




Tommy

49 Deluxe Sport Coupe, 55 235, 700r4, Blazer rear axle, 4 wheel power disc brakes.

https://www.flickr.com/photos/tommyfortynine /album...




 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
09-02-19 07:08 PM - Post#2774708    
    In response to tommy49

Yikes man! What were you in?!

Professional to me means an expert in his or her field. Not white collar bias. Shoot I wish I can go back to high school graduation day and tell my self “TRADE!!!!” My gift is hands on and I know how to run a business. I wish I was a master electrician or something.

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
tommy49 
"5th Year" Silver Supporting Member
Posts: 2626
tommy49
Loc: Kaleva, Michigan
Reg: 09-28-12
09-04-19 05:14 AM - Post#2774794    
    In response to drew1987

  • drew1987 Said:
Yikes man! What were you in?!




Referring to?


Tommy

49 Deluxe Sport Coupe, 55 235, 700r4, Blazer rear axle, 4 wheel power disc brakes.

https://www.flickr.com/photos/tommyfortynine /album...




 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
09-04-19 06:37 PM - Post#2774840    
    In response to tommy49

when your gas tank ruptured

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
Lead sled 
Frequent Contributor
Posts: 1945
Lead sled
Age: 59
Loc: Walton,NY.
Reg: 11-04-09
09-04-19 07:30 PM - Post#2774848    
    In response to drew1987

Drew,he said he was in a van.

Late yr model (Dec. 51 BelAir/ 52 trim), with a basically stock 67 Camaro SS350/295hp Turbo Fire Edelbrock 1405, Saginaw 4spd/355 geared 55/6 Chevy rear.2,1st place,and 1 top five award trophies so far
http://www.picturetrail.com/bris51deluxe


 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
09-05-19 05:03 AM - Post#2774858    
    In response to Lead sled

Good call. Missed that

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
09-08-19 03:05 PM - Post#2775060    
    In response to Shepherd

Ok. I think the issue is solved. Rebuilt the carb. I did find a crack in tip of the end of the longer/larger rounded-end tube in the secondary Venturi on the left side. Came that way cause I’ve never been into it. Irritating because I also found an EXTRA accelerator pump spring in the left bowl, holding the float open, RIGHT OUT OF THE BOX in 2016 when I built the car. I’m calling Edelbrock and asking for a free replacement part because it would appear my carb was made on a day no body cared about their work.





Now the car doesn’t stumble. Seems to run better than it has in a while. I still think I have a vacuum leak. Working on building a smoke machine to try to find it.



I noticed my alternator gauge shows 12 volts at idle and then instantly goes to 14 off idle. I can’t imagine this is correct?

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
09-13-19 07:22 PM - Post#2775486    
    In response to drew1987

Cars gone 200 miles since. Runs as good as before the drama

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
mahlmann 
"9th Year" Gold Supporting Member
Posts: 1715
mahlmann
Age: 75
Loc: Las Cruces, NM
Reg: 01-20-11
09-13-19 07:41 PM - Post#2775488    
    In response to drew1987

Nice work Drew! I love stories with happy endings!



Mike Ahlmann
Las Cruces, NM
'50 Tin Woodies (two) Ramon and Willard
'58 Impala Sport Coupe
'69 El Camino SS-396
'07 Ford F150 to haul parts for above
'16 Ford Explorer 3.5 EcoBoost - Red Rocket


 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
09-14-19 05:21 AM - Post#2775496    
    In response to mahlmann

Getting there!! Still idles like crap. If I can’t find a vacuum leak then I guess it’s the motor. All cylinders make between 101 and 119 psi but with they much of a variation that could be it

Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 
drew1987 
"6th Year" Silver Supporting Member
Posts: 3267
drew1987
Age: 32
Loc: Rochester, New York
Reg: 02-23-14
09-15-19 07:15 PM - Post#2775611    
    In response to drew1987

  • drew1987 Said:
Interesting findings:

The motor makes between 111 and 120 PSI on all cylinders so thats fine, I did find a vacuum leak where the intake manifold meets the block on bank two, in the middle. I'll have to deal with that.






Reflecting on this, is 111 to 120 ok and is such a swing between cylinders acceptable? I am wondering if this is why it’s not smooth at idle not matter what I do. Can’t complain if the motor isn’t perfect cause it was virtually free and has kept me going. I’d like to try, though.


Andrew D. Carapella (Drew)

'50 Deluxe 4dr v8 auto

Member:

Rochester Street Rods - Est. 1970
http://www.rochesterstreetrods.org

CrossMembers Car Club - Hebrews 12:2
http://www.crossmemberscc.com


 


 Page 2 of 2 <12
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

1967 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.113 seconds.   Total Queries: 19   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 08:23 AM
Top