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| | | | Joined: May 2002 Posts: 23 'Bolter | | 'Bolter Joined: May 2002 Posts: 23 | Hey guys,
I'm changing my vacuum advance and need to know the correct timing. I looked up several topics and one said 4 degrees ATDC and that didn't sound right. What is the timing on a 54 235 chevy. Thanks, Pilot | | | 
#7859 03/20/2003 11:49 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | Line it up with the ball on the flywheel, it's 5* btdc if I remember right.
Paint & Body Shop moderator
A lone amateur built the Ark. A large group of professionals built the Titanic. | | | | | Joined: Jul 2000 Posts: 962 Shop Shark | | Shop Shark Joined: Jul 2000 Posts: 962 | You can give it 5 to 10 degrees BTDC. The old-timers say that if you can 'bump' the key and she fires, the timing is right.
chip
Preaching the Hot Rod Gospel according to the 4-stroke apostles:
Suck, Squish, Fire and Fumes
| | | | | Joined: Jan 2001 Posts: 230 Shop Shark | | Shop Shark Joined: Jan 2001 Posts: 230 | To directly answer your question , the is a small window just above the starter , it has a tiny pointer hanging down and when the engine is idling , you'll see a ball bearing pressed into a hole on the flywheel , line it up with the pointer
and you're good to go . you might consider removing the flywheel splash pan and marking the ball bearing with a circle of white paint as it is hard to see , use the wifey-poo's nail polish ,
it'll last forever .
There should be _no_ vacuum at the advance hose when the engine is at idle ! .
-Nate
There is no problem so difficult it cannot be overcome by generous application of brute force & ignorance
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