| |
Click on image for the lowdown. 
====
| | |
0 members (),
128
guests, and
2
robots. | | Key: Admin,
Global Mod,
Mod | | | Forums66 Topics128,127 Posts1,056,680 Members48,452 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | 
#18835 04/03/2002 5:18 PM | Joined: Oct 2001 Posts: 7 Member | | Member Joined: Oct 2001 Posts: 7 | I have a 235 and 2 exhaust manifolds. One has a completely frozen heat riser and the other is movable but still quite hard to turn. Is there a way to free them up, or am I S.O.L.? | | |
#18836 04/03/2002 5:58 PM | Joined: May 2001 Posts: 41 Member | | Member Joined: May 2001 Posts: 41 | give a doseing of penatrateing oil.wiggle oil agaig let sit for a few hours.
oil again and wiggle some more.keep doing it untill it frees up. A little tapping with a small hammer will help too. Just don't hit it real hard
because you could break the manifold. Good luck and persistance will help too.
--------------------
37 Chevy 1/2 Ton
37 Chevy 1/2 Ton
86 Chevy Blazer
98 Drudge 24 valve Cummins
One worn out Timberjack
| | |
#18837 04/03/2002 11:55 PM | Joined: Jan 2001 Posts: 47 Member | | Member Joined: Jan 2001 Posts: 47 | Travis
Woodhicks advise is just what mu 56 Buick shop manual says to do but they say lube with graphite after. I used some heat resistant gold colored stuff from NAPA to lube my Buick and the valve has worked for two years so far. | | |
#18838 04/04/2002 3:21 AM | Joined: Jun 2001 Posts: 11 Junior Member | | Junior Member Joined: Jun 2001 Posts: 11 | Woodhicks advice is what worked on my '54 3100 235. I am fortunate to have a buddy with plenty of experienced on old restorations.
Be very patient and use a tiny hammer, it will free up.
Thunder 54 | | |
#18839 04/05/2002 6:56 PM | Joined: Dec 2001 Posts: 2 Junior Member | | Junior Member Joined: Dec 2001 Posts: 2 | I was unable to free mine (54 1st 235) with a hammer. It had been rusted fast for I don't know how long. When I had the carb off for a rebuild I blew a lot of air through the manifold and cranked the engime a few times to expell the fumes then hit the manifold and riser shaft with a torch. After a few minutes I got a little wiggle. I removed the heat and just worked it back and forth until I had full travel. I have not lubed it but perhaps I will now that I read the other posts. | | |
|
|
| |
