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Username Post: Engine noise?!        (Topic#362956)
Crisserranomurillo 
Newbie
Posts: 6

Reg: 10-18-20
10-18-20 12:45 PM - Post#2805703    

So rectory I’ve put back together a 327 for my 64 impala, I made it run fine after wards I noticed transmission wasn’t working so I had to take everything back out, mean while I installed a new oil pump and removed the intake manifold to check the lifters and put everything back, once it was I. The car again, it started to make this galloping maybe even sucking sound from on top of the carburetor but it only happens when you rev the engine quickly, it also backfires from the passenger side exhaust and it also pops from time to time in the front as well can anyone help me Identify where the problem is I would appreciate it greatly hears the URL [youtube][/youtube] https://m.youtube.com/watch?v=8t5ORhjIsQE



 


turbo38s10 
"9th Year" Gold Supporting Member
Posts: 1837
turbo38s10
Loc: Agawam,MA
Reg: 09-17-09
10-18-20 01:21 PM - Post#2805708    
    In response to Crisserranomurillo

Check the basics, firing order and timing since you took out the distributor. Make sure your not one tooth off.
How did you check the lifters? Just look or did you loosen them?



Edited by turbo38s10 on 10-18-20 01:22 PM. Reason for edit: No reason given.

 
55Brodie 
Contributor
Posts: 328
55Brodie
Age: 68
Loc: Little River, SC
Reg: 12-26-15
10-18-20 01:26 PM - Post#2805709    
    In response to Crisserranomurillo

Backfiring usually indicates a lean condition. Check for leaks around intake manifold and carburetor base.



 
rrausch 
"16th Year" Silver Supporting Member
Posts: 14369
rrausch
Loc: L.A, Cal. & St. Louis...
Reg: 04-07-03
10-18-20 03:12 PM - Post#2805714    
    In response to 55Brodie

Is it missing? Sounds to me like it might be missing.

1953 210 Convertible, 261 with dual Carter YF 966S carbs, P.S., Remote Bendix P.B. Booster... shade-tree restoration about done.




 
GreatNorthWoods 
"6th Year" Silver Supporting Member
Posts: 1170
GreatNorthWoods
Age: 78
Loc: Littleton, New Hampshire,...
Reg: 03-31-02
10-19-20 04:57 AM - Post#2805750    
    In response to Crisserranomurillo

When you say "it pops from the front", are you saying it is backfiring through the carburetor? If the timing is right and the plugs wires are where they should be I would suspect a worn cam lobe. Had that happen to me with a 327 years ago.

Vern

1953 Chevy Belair Sport Coupe - 355 Blueprint Engine, 700-R4, EZ Wire, Vintage Air, Ididit column, Cruise/Tilt, PS, 59 Corvette Steering Wheel, 4-Wheel Discs, Posies Rear Springs, Coker Radials, Nova 10-bolt, Mustang II, NCA Continental Kit.


 
64ss409 
Senior Member
Posts: 952

Loc: Montana
Reg: 12-04-02
10-19-20 06:51 AM - Post#2805754    
    In response to GreatNorthWoods

I wonder if the "pops from the front" may be a cracked or leaking exhaust manifold.
Ron

1964 SS 409/340 4 spd, bought new Oct '63 from Ken Boggs Chevrolet, Geraldine, Montana
1962 SS convertible, 327/250 4 spd
1956 IH pickup, 327


 
Crisserranomurillo 
Newbie
Posts: 6

Reg: 10-18-20
10-19-20 10:49 AM - Post#2805771    
    In response to turbo38s10

I went to each piston got it to TDC well looked like I got it from TDC and then loosened them and rotated the pushrod back and forth till I felt the rocker arm grabbed and then I did a quarter turn to tighten it, I went through all with that same process and followed the firing order when I did it.



 
Crisserranomurillo 
Newbie
Posts: 6

Reg: 10-18-20
10-19-20 10:50 AM - Post#2805772    
    In response to 64ss409

i'll check for any cracks or leaks



 
Crisserranomurillo 
Newbie
Posts: 6

Reg: 10-18-20
10-19-20 10:52 AM - Post#2805773    
    In response to GreatNorthWoods

how can you check if the cam lobes are worn other than pulling the engine out again?



 
GreatNorthWoods 
"6th Year" Silver Supporting Member
Posts: 1170
GreatNorthWoods
Age: 78
Loc: Littleton, New Hampshire,...
Reg: 03-31-02
10-21-20 07:26 AM - Post#2805897    
    In response to Crisserranomurillo

You should be able to pull the cam without removing the engine from the car. There also might be an easier way to find a worn cam lobe but I don't know what that might be.

Vern

1953 Chevy Belair Sport Coupe - 355 Blueprint Engine, 700-R4, EZ Wire, Vintage Air, Ididit column, Cruise/Tilt, PS, 59 Corvette Steering Wheel, 4-Wheel Discs, Posies Rear Springs, Coker Radials, Nova 10-bolt, Mustang II, NCA Continental Kit.


 
junky 
Valued Contributor
Posts: 3598

Loc: Northeast CT
Reg: 06-27-10
10-21-20 01:01 PM - Post#2805910    
    In response to GreatNorthWoods

  • GreatNorthWoods Said:
You should be able to pull the cam without removing the engine from the car. There also might be an easier way to find a worn cam lobe but I don't know what that might be.



Take the valve covers off, and crank the engine over. The valve rocker arm that doesn't move much is the one that has the bad cam lobe.

Never argue with an idiot. He'll drag you down to his level, then beat you with experience.


 
Crisserranomurillo 
Newbie
Posts: 6

Reg: 10-18-20
10-21-20 03:37 PM - Post#2805922    
    In response to junky

thanks ill try it out!



 


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