The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-14-2017, 06:33 PM   #26
geezer#99
Registered User
 
geezer#99's Avatar
 
Join Date: Aug 2009
Location: Bowser
Posts: 8,830
Re: Recurring Crate 350 Gremlins

Quote:
Originally Posted by 73kay View Post
Take a look at it after the timing/dizzy are verified.
What are you gonna use as a piston stop?
geezer#99 is offline   Reply With Quote
Old 07-14-2017, 07:51 PM   #27
AcampoDave
Registered User
 
AcampoDave's Avatar
 
Join Date: Feb 2013
Location: central California
Posts: 1,218
Re: Recurring Crate 350 Gremlins

Earlier when I was wondering a about your clutch, I was actually thinking the problem could be the pressure plate or disc. Once, I had troubles stabbing my tranny and I let it hang there a while just so I could rest and calm down. Thing was, it wasn't fully stabbed and I ended up damaging my clutch either from the suspended weight of a partially inserted tranny hanging there by the input shaft, OR it was me being mad as hell in the sweltering heat trying to force that tranny to stab. Either way stuff got tweaked and the pressure plate broke a spring. Hell, maybe the disc got bent too I can't remember now as it was like 30 years ago. Why don't you post up some pics of the internals of your distributor when you yank it out. Maybe we can see something that may be outta whack with it.

Last edited by AcampoDave; 07-14-2017 at 07:59 PM.
AcampoDave is offline   Reply With Quote
Old 09-20-2017, 02:04 PM   #28
73kay
Senior Member
 
73kay's Avatar
 
Join Date: Jul 2014
Location: Copperas Cove, Texas
Posts: 483
Re: Recurring Crate 350 Gremlins

Hey folks, just wanted to follow up to this. Broke down and bought a new dizzy and edelbrock 1406. Installed the dizzy and set timing to 10 or 8 BTDC, still had some symptoms. Installed the carb and voila! Truck drove like a beast. So something about the carb was causing my symptoms which included weird noise/slight vibration almost with a heavy foot and if I downshifted, some scavenging. It just ran like crap. The old carb had 1000 miles on it and always had a filter.

I didn't adjust anything on the new carb and it worked great. It's now dialed in and I am happy, but it just doesn't make sense to me. I also bumped initial timing back up to 16BTDC. Truck is awesome now and hope this helps anyone in the future.
__________________
Andrew

"Rust Bucket" - 1953 3100 235 T5 9in 3.50
"Old Blue" - 1976 c10 350 WC T5 3.40
73kay is offline   Reply With Quote
Old 09-20-2017, 04:32 PM   #29
mattfranklin
Senior Member
 
mattfranklin's Avatar
 
Join Date: Dec 2011
Location: Moraga, CA
Posts: 301
Re: Recurring Crate 350 Gremlins

Quote:
Originally Posted by 73kay View Post
Hey folks, just wanted to follow up to this. Broke down and bought a new dizzy and edelbrock 1406. Installed the dizzy and set timing to 10 or 8 BTDC, still had some symptoms. Installed the carb and voila! Truck drove like a beast. So something about the carb was causing my symptoms which included weird noise/slight vibration almost with a heavy foot and if I downshifted, some scavenging. It just ran like crap. The old carb had 1000 miles on it and always had a filter.

I didn't adjust anything on the new carb and it worked great. It's now dialed in and I am happy, but it just doesn't make sense to me. I also bumped initial timing back up to 16BTDC. Truck is awesome now and hope this helps anyone in the future.
Thanks for posting the follow up and sharing the details of what finally fixed it.
__________________
(Very) Slow-Going Build Thread: Stock 1970 Short Step with Stock 1970 LT-1

http://67-72chevytrucks.com/vboard/s...d.php?t=567340
mattfranklin is offline   Reply With Quote
Old 09-30-2017, 01:02 AM   #30
nikwho
Registered User
 
nikwho's Avatar
 
Join Date: Apr 2010
Location: Flagstaff, AZ
Posts: 628
Re: Recurring Crate 350 Gremlins

Glad that you got your truck running well again! It's always nice to come back to a thread after a while and hear that OP got it fixed and to close the loop on what it was to help others that find the thread that are experiencing similar symtoms.
__________________
'68 GMC - BBC
'59 Apache - SBC/700r4
'53 GMC 4-linked S-10 swap
nikwho is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:07 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 1997-2013 67-72chevytrucks.com