Reproduction Parts for 1916-1964 Chevrolet Passenger Cars & 1918-1987 Chevrolet & GMC Trucks


Visit the new site at vcca.org

Forums Active Threads
Previous Thread
Next Thread
Print Thread
Rate Thread
-54 distributor vacuum (leak?)
#389092 05/12/17 04:10 AM
Joined: Jan 2017
Posts: 11
Finland
Fin Offline OP
Grease Monkey
OP Offline
Fin
Grease Monkey
Joined: Jan 2017
Posts: 11
Finland
I have a problem with driving on low steady rpm.
Just checked the dizzy, changed the little things and it helped a bit.
Then I noticed that when I rev the engine quickly, dizzy moves like it should but when I give it steady gas (say 2000rpm) for a period of time, the dizzy moves back where it is when at idle.
That should not happen, right?
It should stay "pulled" by the force of engine vacuum and keep the spark advanced, right?

So I have a leak somewhere between carb and dizzy, right?
Filling Station - Chevrolet & GMC Reproduction Parts


Filling Station
Re: -54 distributor vacuum (leak?)
Fin #389097 05/12/17 08:13 AM
Joined: Jan 2002
Posts: 30,701
Likes: 141
West Allis,Wi.
Chev Nut Offline
ChatMaster - 25,000
Offline
Chev Nut
ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701
Likes: 141
West Allis,Wi.
I would suspect the diaphragm in the vacuum advance is leaking.

It had a moch larger air volumn and sold for makng the ride more comfortable.

Last edited by Chev Nut; 05/12/17 08:38 AM.
Gene Schneider

Link Copied to Clipboard
Privacy Policy · Forum Rules · Mark All Read Contact Us · Forum Help · VCCA Home
 

Notice: Any comments posted herein do not necessarily reflect the official position of the VCCA.
Powered by UBB.threads™ PHP Forum Software 7.7.5