![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
|
![]() |
#1 |
Registered User
Join Date: Jun 2004
Location: Gainesville, Fl
Posts: 382
|
![]()
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.
__________________
Man I need another 67-72!!! ![]() |
![]() |
![]() |
![]() |
#2 |
Registered User
Join Date: Jul 2003
Location: north of Phx AZ about 30 miles
Posts: 698
|
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.
__________________
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 |
![]() |
![]() |
![]() |
#3 |
Registered User
Join Date: Jun 2004
Location: Gainesville, Fl
Posts: 382
|
Ttt !!
brad
__________________
Man I need another 67-72!!! ![]() |
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|