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#1 |
Registered User
Join Date: Jun 2004
Location: Gainesville, Fl
Posts: 382
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Please help me!! my engine is running bad
![]() ![]() ![]() at first it started to back fire and spit around 45mph so I advanced the timing a wee bit and it got better and better, but now it just "like I said JOLTS" and tops out aroung 53-55mph and I know that is not its full potential. What to do?? Do I just take it to a mechanic or is there something simple I am missing?? Also I have never had the vacum advance hooked on the dizzy, should I hook it up? would it solve at least some of this? What am I missing????? Please help I want to just sell the truck now! but I know I would regret it for years to come.
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#2 |
Registered User
Join Date: Jul 2003
Location: north of Phx AZ about 30 miles
Posts: 698
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Sounds like you need some more advance. You should have a total (vac advance + initial advance + mechanical advance) advance of about 34* BTDC. You can use a timing light to estimate your total advance, you can buy a piece of tape at the speed shop to put on your balancer that is degreed, or you can buy an advancable timing light.]
I'd hook up the vacuum advance, turn the dizzy, in slow gradual increments CCW until it pings under moderate load. Then back it off a hair. That will give you the advance that your engine likes. You may have to back it off even more if you have ttrouble starting it afterwards, then adjust your vacuum/ mechanical advances to advance more under load. Do a search on timing advance here on the board, there have been some excellent discussions here in the past.
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Andy,Phx AZ '67 C-10 (Ahhh, done at last. Well there is that disk front end I want to put in and...) "23 C-Cab-sold '48 Ford 8N tractor(still working) '67 Scout(Now on the road) '70 MG B.-sold |
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#3 |
Registered User
Join Date: Jun 2004
Location: Gainesville, Fl
Posts: 382
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Ttt !!
brad
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