Hey, ive just rebuilt my truck motor and most of the parts are brand-new. when i go to turn it over, its turns freely, but it doesnt sound like its firing. im assuming its my timing but i dont know for sure, my timing chain hasnt skipped a link, and im getting gas and spark to all cylinders. any helpful tips and advice would be very much appriciated. thanks, kiel
Rebuilt 22-RE, but it won't start..
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You´re not the first
I agree, that´s where I would start...
I agree, that´s where I would start...
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397 Posts
i agree. I learned the fun way with my buddy's 87 22r dizzy. When it was wrong, it was shooting air/fuel out the top of the carb. pulled the spark plugs wires off the dizzy and rotated em all, and there it went.
any luck?
any luck?
ya, thats what a friend told me, but i dont have a compression gauge. should i just pull the #1 spark plug and put my finger over the hole til i notice the pressure? ill have to play around with it tonight and keep you posted. thanks for all the replies.
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remove the number one spark plug and put a pencil down, turn the pulley witha breaker bar or something until it reaches its highest point, or the other way if the meter thing is still there is just to line up the cs pulley with the 0 mark on the timing meter. then to see if it is the exhaust or the compression you can either go with the guess and check meathod or take off the valve cover and see if the valves for the 1st cylinder are a. both closed (compression) or b. the drivers side is open (exhaust) then when you get it to tdc on the compression line up the distributor to make sure it contacts the 1st spark plug wire contact when it is in ( it will turn when you insert it cause of the gears so youll have to compensate)
I'm guilty of this mistake as well
I'm guilty of this mistake as well
thanks lumpy for the step-by-step, it really will come in handy. ya my manual said for me to get to tdc then adjust it 5 degrees. im thinking if i can get it to tdc and get it started, then i can use my timing light to get that extra 5 degrees its asking for.
another question, a little off subject but i was thinking about it earlier.. when i rebuilt my truck i replaced the head with a use but milled and machined one. should i have installed shims with it? maybe thats throwing my timing chain off a bit.. i dont know, but any feedback would be helpful, thanks again!
another question, a little off subject but i was thinking about it earlier.. when i rebuilt my truck i replaced the head with a use but milled and machined one. should i have installed shims with it? maybe thats throwing my timing chain off a bit.. i dont know, but any feedback would be helpful, thanks again!
the difference in cam timing after the head is milled is not enough to prevent starting, only enough to affect the performance. Of course how much depends on the amount of material removed.
I'd recommend doing a compression test first. Uniformly low readings could indicate incorrect valve timing. The check the distributor timing.
I'd recommend doing a compression test first. Uniformly low readings could indicate incorrect valve timing. The check the distributor timing.
okay good, i was really worried about that.. i really appriciate all of the feedback ive been getting. this is the deepest ive been into a motor and this site (along with the haynes manual) has helped me out the most.
well i got it started this morning. i was off 180 on it. its definatly running a bit rough right now, but i still need to adjust the valves and fine tune the timing. thanks for the help, and ill have to post pics once im out and driving around!
sweet! way to go! :thumbup:
oh ya, not only is it satisfying doing it myself but when i started it and it fired right up it was so exciting. about 5 weeks of waiting and it paid off pretty well.
but.. there isnt a textbook rebuild possible on 20 year old trucks, is there? now that i have it running and everything put back together and tuned right, ive noticed she kindof sputters like i have a miss. i cant tell what it is, but when i started it and it was idling okay (minor sputter still) i turned the heater on so i could get my coolant circulated it really started to jump in its idle. it fluctuated between 600-700 to about 900-1000. any ideas on what this could be? i havent timed it fully yet but i was kindof playing with the distributor to see it it would level out with no luck.. i was thinking maybe a vacuum line wasnt hooked up or something.. maybe i could check to see if im getting spark to all cylinders.
thanks for the advice guys, and if i figure it out on my own ill be sure to post it!
but.. there isnt a textbook rebuild possible on 20 year old trucks, is there? now that i have it running and everything put back together and tuned right, ive noticed she kindof sputters like i have a miss. i cant tell what it is, but when i started it and it was idling okay (minor sputter still) i turned the heater on so i could get my coolant circulated it really started to jump in its idle. it fluctuated between 600-700 to about 900-1000. any ideas on what this could be? i havent timed it fully yet but i was kindof playing with the distributor to see it it would level out with no luck.. i was thinking maybe a vacuum line wasnt hooked up or something.. maybe i could check to see if im getting spark to all cylinders.
thanks for the advice guys, and if i figure it out on my own ill be sure to post it!
so i was right on the vacuum line.. i went down and let it run while i had a golf tee and just started pulling lines, and plugging them with the tee. i found that i just had two in the wrong spot.. i should have noticed it earlier because it was pretty noticeably wrong..
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