Gain extra benefits by becoming a Supporting Member Click here find out how!

Classic Performance Products Classic Parts
American Auto Wire Classic Industries
Danchuk Catalog
Hellwig Products IncPerformance Rod & CustomNu-Relics Power Windows



Username Post: 66 cowl question        (Topic#358750)
craig32 
Frequent Contributor
Posts: 1310

Age: 57
Loc: PA
Reg: 08-05-07
11-09-19 03:50 AM - Post#2779822    

Greetings, all!
Where does water drain out of the cowl on a 66? Is it around the bolt at the bottom of the fender? Mine is (was) so goofed up from a PO that I have no idea where it drains. There seems to be a large opening on mine anyway, where the bottom of the fender bolts up. One side had a toggler-type rig up in what I assume is the drain, and the other side had what looked to be a tiny wrench with bolts welded to it, one going up into the frame, and the other going up into a hole in the fender that I assume is not the right one, and this thing was tack welded to the frame! It appears that it would drain in the back half of the cowl, and the front area is air tight.
Anyone have a pic of one with the fender off?
Thanks!

Craig

66 Impala (in progress}
56 Stepside shortbed
55 Bel Air sedan
81 Corvette
02 Monte Carlo (bought new)


 


100 CHEVY 
Dedicated Member
Posts: 6512
100 CHEVY
Loc: Helena,Missippi,U.S.A.
Reg: 12-09-04
11-09-19 06:47 PM - Post#2779868    
    In response to craig32

It does have a drain there in that area.
It also drains into the rocker panel.
BUT,the drain holes are too small and almost always get plugged with dirt and leaves,etc.
If you remove the plastic cover from the inside kick panel,you can see into the hole and clean it out some.Expect rust.
The lower fender mounts to a captive nut in the pillar.
Here is a repair made by another member---https://www.chevytalk.org/fusionbb/showtopic.php?tid/290474/post/22954 30/hl/67+Impala+a+pillar+ rust+repair/fromsearch/1/

I did the same to my 67 Impala,but can't find the post now.
Mike.

"You gonna leave it like that?
http://www.picturetrail.com/100chevy


Edited by 100 CHEVY on 11-09-19 07:02 PM. Reason for edit: No reason given.

 
craig32 
Frequent Contributor
Posts: 1310

Age: 57
Loc: PA
Reg: 08-05-07
11-10-19 07:23 AM - Post#2779892    
    In response to 100 CHEVY

Thanks Mike, good to hear from you again! Like I said, mine were non-existent on one side and really screwed up on the other. I couldn't imagine it drained around the bolt, but you never know. As it is, we didn't finish the end of the repair, so I'll just put a drain hole there. This is so much more complicated than the 55 was!

66 Impala (in progress}
56 Stepside shortbed
55 Bel Air sedan
81 Corvette
02 Monte Carlo (bought new)


 
100 CHEVY 
Dedicated Member
Posts: 6512
100 CHEVY
Loc: Helena,Missippi,U.S.A.
Reg: 12-09-04
11-10-19 10:23 AM - Post#2779901    
    In response to craig32

You're welcome.
It's only metal and can all be replaced or repaired.(I enjoy this type work myself).Most get frustrated doing it!
Mike.

"You gonna leave it like that?
http://www.picturetrail.com/100chevy


 
craig32 
Frequent Contributor
Posts: 1310

Age: 57
Loc: PA
Reg: 08-05-07
11-10-19 10:44 AM - Post#2779904    
    In response to 100 CHEVY

Boy Howdy! I've gotten pretty good taking apart panels, drilling out spot welds and cutting out other people's BS 'repairs' with this car, the truck and the 55. Seems like I'm getting pretty adept at making pieces that aren't reproduced, and 'massaging' pieces that are. I haven't learned to weld yet, so my father in law does that, and the putty and paint. As long as I have something to look at. . . . . .

66 Impala (in progress}
56 Stepside shortbed
55 Bel Air sedan
81 Corvette
02 Monte Carlo (bought new)


 
bigbowtielover 
Valued Contributor
Posts: 2564
bigbowtielover
Loc: Surrey British Columbia
Reg: 09-01-13
11-11-19 11:37 PM - Post#2780022    
    In response to craig32

The water from cowl area drains into the rockets and exits in front of rear tire. There is not supposed to be any water draining from front. If you get in behind the the breeze vents behind kick panels there is a drain hole about one inch diameter. Most likely plugged up with leaves or other tree crud. One of my cars had two one gallon buckets of crud from being parked under a large cedar tree for 10 years.



 
mjc1 
Senior Member
Posts: 1548
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
11-12-19 04:59 PM - Post#2780070    
    In response to bigbowtielover

How would one clean out these rocker passages?

1967 Grande Parisienne 4DR HT
My Flickr page



 
bigbowtielover 
Valued Contributor
Posts: 2564
bigbowtielover
Loc: Surrey British Columbia
Reg: 09-01-13
11-12-19 05:41 PM - Post#2780071    
    In response to mjc1

I used a pressure washer that had a small end and flushed it out after using a shop vac to get the loose stuff first. Lots of mud came out when I pressure washed it. There is a square hole that everything came out of at back end of rocker.



 
mjc1 
Senior Member
Posts: 1548
mjc1
Loc: Burlington Ontario Canada
Reg: 09-15-04
11-13-19 08:09 AM - Post#2780101    
    In response to bigbowtielover

Thanks.
So a vac through the kick panel opening? Then the powerwasher through which opening?

1967 Grande Parisienne 4DR HT
My Flickr page



 
bigbowtielover 
Valued Contributor
Posts: 2564
bigbowtielover
Loc: Surrey British Columbia
Reg: 09-01-13
11-14-19 06:27 PM - Post#2780178    
    In response to mjc1

Feel around in the bottom and find the hole sorta in the middle. Easiest to do with the whole vent assembly removed. Hole is about one inch diameter. I made a small attachment to fit the shop vac so I could get some of the crud out of the hole.



 
59fins 
"19th Year" Gold Supporting Member
Posts: 2243
59fins
Age: 59
Loc: Surprise Az USA
Reg: 04-07-00
11-14-19 06:58 PM - Post#2780185    
    In response to bigbowtielover

Couldn't give it away. someone bought it for the A pillar. and no it was not a fixer. hope the pics help.

Attachment: IMG_2682_1_.jpg (294.37 KB) 6 View(s)




Attachment: IMG_0022.JPG (2.37 MB) 4 View(s)




Attachment: IMG_0030.JPG (1002.75 KB) 4 View(s)




Attachment: IMG_0033.JPG (2.11 MB) 4 View(s)




Attachment: 66_Impala__and_4_door_ht_rt_frt_cowl.JPG (1.66 MB) 10 View(s)




Bill H.
67 Impala SS




 
craig32 
Frequent Contributor
Posts: 1310

Age: 57
Loc: PA
Reg: 08-05-07
11-16-19 05:49 AM - Post#2780275    
    In response to 59fins

Thanks everybody for the pics, they're really helpful. It just seems like a GIANT step backwards from my 55! Can't believe they used the rockers as a rain gutter, no wonder they all rot out. The 55 has a large drain at the bottom of the cowl and the rockers are just for looks, as compared to these.
Thanks again, everyone!

Craig

66 Impala (in progress}
56 Stepside shortbed
55 Bel Air sedan
81 Corvette
02 Monte Carlo (bought new)


 
junky 
Valued Contributor
Posts: 3173

Loc: Northeast CT
Reg: 06-27-10
11-17-19 10:13 AM - Post#2780357    
    In response to craig32

Starting in 1965 GM had the idea that the water would flush through the rocker panels, and make a perfect drain conduit. Obviously, they miscalculated, and caused rotting in the cowl near the lower hinge, and the rocker panels. Anything you do to remove the debris, and cause the water to exit cleanly at the bottom of the cowl will be an improvement over the GM design.
Over the years, I have looked at a lot of beautiful Corvairs that were built with this same design, only to see that the cowls and rockers were rusted beyond repair, but the rest of the car was solid. At least with the full sized cars, you have a frame to hold the car together, and repairs are not nearly as difficult.

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


 
bigbowtielover 
Valued Contributor
Posts: 2564
bigbowtielover
Loc: Surrey British Columbia
Reg: 09-01-13
11-17-19 08:17 PM - Post#2780407    
    In response to junky

Actually the design works quite well....as long as you keep debris out of the bottom and actually DRIVE THE CAR. Air flow while driving helps push out the water and dry the rockers out. They called it the "flush and dry system". Works great....if you drive the car but if car sits outside and has debris clogging the drains it's not so good. Also parking the car facing downhill will cause problems when sitting for long time in rainy weather. Drain exits at the rear.



Edited by bigbowtielover on 11-17-19 08:18 PM. Reason for edit: No reason given.

 
craig32 
Frequent Contributor
Posts: 1310

Age: 57
Loc: PA
Reg: 08-05-07
11-20-19 12:39 PM - Post#2780608    
    In response to junky

Well, there's not much to cleaning out the debris when the bottom is rotted out! The driver's side was mostly in the cowl, and the rocker seemed OK except the inner behind the cowl. I haven't closed the end off yet, so I'll come up with a better wat to drain it when I do - or just leave it open.
The passenger's side, however, is a different story. It has all kinds of crud in there, and the rocker is ruined with putty in the holes. There's even evidence of rodent activity along with all of the crud in the rocker.
All that caused me a big problem ordering new parts. I ordered an inner rocker, an outer rocker, and a new fuel line, and they charged me $155 for shipping. It must be coming in a refrigerator box. That will be the last time I order anything from them. They also have no shipping chart in their catalog like H&H does - which would have been $75 for the same thing.
Anyhoo, parts won't be here until Monday, so this weekend is a scratch.

66 Impala (in progress}
56 Stepside shortbed
55 Bel Air sedan
81 Corvette
02 Monte Carlo (bought new)


 


Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

594 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.1 seconds.   Total Queries: 17   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 04:12 PM
Top