Won't fire after rebuild

[943kTT]

Hey everyone,

I just finished installing a new longblock into my 94 4x4. Its a 22re, checked all the connections and timing. It cranks, but won't fire, alls it will do is "pop" occasionally and i get some blue smoke (havent tried since this). Plugs seem to be damp and smell of gas. Only thing i can think of is that i screwed up the timing. I alined the crank so that its at TDC in compression, and alighned the "spike" in the dist. to the number 1 plugs wire connection on the cap, but when the dist finally goes through it moves alittle and is slightly off. Would this cause no start? Also my rotor has some build up on it, but it started fine with the old engine.

Last thing is the ground for the alternator, i have it dangling because i figured for now it wasn't an issue. Could this do it? Aside fomr that im out of ideas. Maybe im not getting enough fuel. How wet should the plugs be?

Any help would be appreciated. Thanks in advance, -Pat

[1bad2WD]

it sounds to me like you may have your dist in 180 degrees out or the holofex switch has gone bad (the little thing under the rotorary button)

[Dseldown]

Originally Posted by 1bad2WD

it sounds to me like you may have your dist in 180 degrees out or the holofex switch has gone bad (the little thing under the rotorary button)

What 1bad2wd says. Maybe not 180% out but probally way off, Rotate engine CW untill @ 0% TDC #1 Cylinder. Recheck position of rotor and see if its where it should be@ the contact of the Dist cap. If off, remove secure bolt from Dist, pull up vertically and rotate a tooth or 2 beyond #1, as u reseat the dist, it will rotate alittle back from where you started, If still off, keep advancing 1 tooth @ a time, untill its right. After that the small dwell adjustments by hand will get u running. Time it W/light Retard advance on Dist, Jumper E1 to T1 set @ 5% BTDC Recheck, and tighten!

[943kTT]

Okay, for some reason i thought that you align the spike part of the dist shaft with the #1 cyl firing surface instead of the rotor blade itself. Got it to start, kind of. After playing with the distributor, i can get it to run for a max of 10 seconds, then it dies. The thing is the distributor is perfectly aligned at 5% BTDC, so the timing issue has been resolved and now it seems like theres another problem??? I do have the firewall gorund disconnected havent tried that. Maybe more fine tuning with a light would help. Also have a major exuast manifold leak.

Thanks for the help so far ill keep you updated, -Pat

[toyomoho]

How does the engine run for those 10 seconds, smooth, rough? If it runs OK, suspect a fuel flow problem as in running out of fuel.

[Dseldown]

Good work on the Timing and Dist realignment. Ok Look for possible vaccum leaks @ intake manifold, ETC. Or you got some vaccum lines mixed up and mated to the wrong deal. Also a bad exhaust leak before the O2 sensor will make it send incorrect voltage/signal to the Emmission Control Unit, If it thinks its too lean, it enrich it to the point of very poor performance and could possibly keep it from running or too lean as well, also make sure U have a good connection Electrically @ the air vane. Thats where the airfilter sets, Ive seen a poor connection there, and it'll start but not last for but 5 to 10 seconds and die, start right up and die again. Hope one of these suggestions corrects this. If the oxygen sensor is all over the place because of the exhaust leak, fix exhaust leak first, if nothing works I try pulling codes to see what it says as a last resort! OH YA, Secure those grounds, grounding is very important, concerning electrical operation, It will disable an operation, or a circut can build up static charge and be unable to bleed off, ETC.

[943kTT]

Okay, fixed all of the above and found a major vaccum leak. Thought that wouldve done it, however instead of shutting off it stumbles and idles very low and rough and will not budge at throttle increases. Could this just be dwell adjustments? Flooding? Im stumped and pretty close to bringing it to the dealer. Thanks again, -Pat

[Dseldown]

What does the tailpipe look like? Is it heavy dark black sooty looking when U take your finger to the inside? If its been running really rich for awhile, the O2 sensor could be loaded with soot heavy buildup! Now I know some peeps here will probally say BS, But I get alot more milage out of a O2 sensor and have fixed sensors that were loaded with crap, and got reworking, There not as fragile as U think! By taking it out and spraying CRC electrical cleaner Fast drying Non residue Type as they make 2 types. I spray it down real good a couple of times and it cleans up real nice. If your sensor or sensors are really old and worn enough to be bad, then of course replace it, But this every 30 to 50 or 70K milage deal is BS. Also Fuel filter could be ready for replacement! A almost totally clogged filter will idle, but fall on its face when actual driving or attempted acceleration! ! Dont throw in the towel yet, Youve come along way with it, And going to the dealer, will just make you want to Bitch slap somebody, After U have moths fly from your wallet. I dont trust dealerships, Unless Im forced to comply W/warranty requirements. I C that U stated a vaccum leak fixed or another 1 is present? We'll get U thru this, Thats what Yota Bros Do for each other here! Revised: Make sre idle set screw is down all the way! And yes recheck your timing, did U retard advance @ T1 to E1 by jumpering before stting 5% BTDC? Could be off !

[943kTT]

Okay finally got her running. The timing mark was almost corroded/rusted off and i was going by another double dash mark i thought was the marker. Idled smooth except for a couple "stumbles" every so often and under throttle blips. ONce reaching operating temp it idles rough. I can hear a vaccum leak by the intake manifold so i know thats throwing it off some. Also have to still perfect timing with the light.

Id also like to thank all you guys for the help. If i hadn't got your guys advice the truck would be at the dealer rigtht now and who knows what i wouldve got hit for. Thanks again and ill check back once i get it running right. -Pat

[943kTT]

Think i got it 90%. Found out that my throttle body gasket had folded in a corner (napa), fixed that and its idleing great. Just need to set timing with light and i think ill be set. Couldn't have done without you guys, thanks again.

[Dseldown]

Good Job man, I love it when it all comes together, and works out right, keeping groceries on the table for the Kiddies, instead of fattening the dealers bottom line!