Thread: sbc running rough

Tweet

and the damper mark is at "0"?????

will it looks to be + - 2* cuz the timming marker is bent a little.The marker was for a smaller blancer then the 8" i'm useing

Will in about 3 hours from now i will pull the vavle covers and check and see how the valves are open and closeing then i will go and pull the timing cover.I will let everyone know what i come up with tonite.I was just hoping for some thing else

This may sound dumb but do you have the fireing order right on the cap/plugs??

thats not dumb at all.I check it 4 times today every after i drop a diff dis in and had it runing......

and the rotors pointing to # 1 plug wire.

If all this is right it should run the only other thing would be vacume leak. Maybe someone else has a idea or 2

Yeah it does point to #1 ...I think i'm over looking some thing.Maybe the cam is worn a lob or some thing or i miss adjust a lifter...I will find out tonite.I hope

when you find it post us I'm courious and sorry I couldn't help

i will do.. Thanks every one for trying to help.Its not easy when your not there..

mikey, read this please.....

http://www.streetmachinesoftablerock...opic.php?t=350

1. dies when you put it in gear....indicative of a lean condition
2. falls on its face when punched.....indicative of a lean condition
3. spark knock.....indicative of a lean condition

ok i have check the lifter adjustment and is good.
last night i have some trouble with getting running after that but i cleaned the plugs and now its running again but still the same thing.
What is a real puzzle to me right now is why the damper mark is so far off when it is running???And when i was turning the motor over going to #1 for the valve adjustment the intake is not all the way closed at that point and i know when i had the tbi on it the mark was not that far over and running this bad.
And the pulgs were foul from being to rich.I'm not the best at tuning carbs but i get by.I don't know how to lean it out any more then it is.I have the samllest jets in it..This carb worked great on the last motor i had it on two years ago.It just been sitting on the shelf the whole time.

ok i think i not told you what i have all the way

68-74 sbc 350 stock
accel dis with vac
600cfm holley 4bbl vac sec
short accel spark plug-becuz of the header room i have
the damper is off a 94 sbc 350
the timing chain is for a 86 sbc
edelbrock intake
edelbrock cam match set for the intake and carb set up
stock rockers
-------------------
now the engine use to run good with the stock tbi off a 94 sbc.just not enough power becuz of the cam not working with the computer very good.
all i changed was the intake dis and put a carb on it.
hopefully this will help

I don't know if we covered this?? If your valves on #1 cyl. are not closed and the timing tab is on "0" compresion stroke. then your timing gears are not allingned right. Chain has sliped or was not on right to begin with. This will cause the problems you are having.

tobad your on the other side of the state

right...Both valves are closed when its on 0* that is the thing.

when i was turning the motor over going to #1 for the valve adjustment the intake is not all the way closed at that point


I think I'd check the timing gears ALSO check if someone put in an off set key.