Truck runs rough after timing belt.

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Cruiserhiggs

Cruiserhiggs

10 Year 15 Year
Joined
Jan 1, 2008
Threads
27
Messages
288
Location
Mesa, AZ
Hey guys,

So my oil pump housing was leaking so i decided to change the timing belt and fix the leak in my truck yesterday. Everything went fine and i checked my timing marks like 5 times before i put it all back together and they lined up everytime. Got my truck back together and now it has a slight miss and sputter on acceleration. checked my timing and its ok. The truck ran fine before. Any ideas?
 
^Beat me to it, one of the cams is probably a tooth off. A sweet trick is when installing the belt just before the neck pulley is installed is to use a pair of small c-clamps to hold the belt in alignment. Then once it's installed and you finish installing the tensioner you can pull the pin and then release the clamps and not have the belt budge on ya causing the cam to shift a tooth or two. :D
 
clips

I use small binder clips to hold timing belts in place to avoid any possibility of skipping it works great on multiple cam engines.
 
Dang. I guess i can check that. I checked it no kidding like 5 times before i buttoned it back up. I thought if i was a tooth off i would have a loss of power as well? and i dont feel that. It just has a slight miss/sputter
 
timing light

Just want to share a lil secret,if you have a timing light its the quickest way to know if your cam is of a few teeth.just plug it in and hook up to #1 cyl. and point it were your cam should line up and it will show you if the maeks are off,it will work as if your just checking your timing marks on the crank.

John
 
^You mean before you put the top cover back on right? Shine it at the dot on the cam and the triangle on the backing plate and the stripe should show up..all three in alignment, right.

(Clarifying)

That's about as sweet a trick as sticking a small paperclip into the plug wire at the cap (pop the plastic clip off) and using a test light lead to ground it out on to check for a dead cylinder. :D
 
It should be noted that running the engine with the timing cover off should only be done after thorough checking that everything needed to operate the engine safely is in place, and there is nothing loose around that could get caught when you turn it over......
 
Sweet thanks man i will try that trick. You learn all types of stuff on here. Gotta love it
 
exactly

NorCalBorn said:
^Beat me to it, one of the cams is probably a tooth off. A sweet trick is when installing the belt just before the neck pulley is installed is to use a pair of small c-clamps to hold the belt in alignment. Then once it's installed and you finish installing the tensioner you can pull the pin and then release the clamps and not have the belt budge on ya causing the cam to shift a tooth or two. :D
Click to expand...

Yes Shane,that is correct you can do it before you button up the covers.i also have seen guys were they cut a small hole in the cover (size of quarter) in order to check your marks even with the cover. i do this at times when diagnosing cars in the shop it helps eliminating belt that skip a few teeth.

Sorry wrong quote.
 
Last edited:
Well i got it fixed! We're back on the road. I pulled my plugs and checked them all and there was a hair line crack in the number one plug. Put new plugs in and runs like a champ! Thanks for all the help guys.
 
:flipoff2: pics or it didn't happen. Sig line says it's SAS'd on 37's, lets see it. :popcorn:
 
This is my baby. My dad bought it brand new and i've had it since i was 16. I have done all the work myself on it.
100_0142.webp
 
Did you have to stand that 4X6 step stool on end while you were working on it? I would have.

Glad you got it fixed, and that you did in fact have the belt lined up right.
 
Ha Ha next time i will post a picture first. Yeah i'm glad the belt was on right too. And yes i have to use a step stool to work on the engine its way easier
 
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