new motor won't start

[XFlow_Fairlane]

ok I got my 200 together and got a starter in today....after spending the evening changing the pump drive (had put a 2.3ohc drive in by mistake and had to epoxy a rod to the end to get it out) I can't get it to fire/sputter/backfire I have spark that is nice and strong (pertronix in dual advance dizzy) I have fuel in the carb (can see it squirt) and I have compression. I am positive the cam is timed correctly (first ohv build for me....done timing on 2.3 lima motors hundreds of times) I can move the dizzy about 90 degrees and have retimed it a million times.....but it fails to do anything. even moving the dizzy while cranking produces no change in the cranking of it (doesn't speed up or slow down) I have a good cap and rotor and wires (spark on a pulled plug) but it fails to do anything. so does anyone have any good starting points? I have done 5-6 motor swaps before with no ignition probs ever always fired on the first try basicly (unless I forgot something like a rotor or coil wire) I need to get this started before friday because I need to drive it back to school this weekend and I would like to get 50-100 miles on the motor before then

 

[addo]

Weird. 180° out on the dizzy is my first thought, but that will normally produce a healthy backfire.

Tried a squirt of fuel or ether into the log, rather than relying on the carb?

Also, verify your compression with a gauge.

 

[gtm1086]

Well if you have spark, fuel and compression. Then it’s got to be a timing issue or firing order issue. The only other thing would be a completely blocked off exhaust but that would be highly doubtful

 

[XFlow_Fairlane]

well it was getting late so I had to give up around 11:30pm. tomorrow I will be able to give it my full attention and see what it is. I might just need a shot of gas to get it going right off. can't wait to get this going...stepped up to a 200 from my 170 (hyd lifters woohoo) and put in a t5 at the same time. best part is I have maybe $500 in the whole setup. hopefully I can get it started tomorrow and start workin on some break in miles before the weekend

 

[Anonymous]

Is your choke staying closed? I tried to start my 200 with a bad choke and had nothing not even a backfire, until SWMBO held the choke open with a screwdriver while I cranked it. Started right up.

r/
Steve-O

 

[XFlow_Fairlane]

well I pumped the gas a few times and messed with the timing and got it fired up.....go to backit out (snowing here) but the roads are so damn slick I could only go about 20mph!!! argh!!!

anyways I do have a small problem...I noticed when I had the motor apart that there was a rod gracing the oilpan a little. I tapped it with a hammer a little thinking it would clearance it enough....well it didn't so I have a nice tapping sound. I felt the pan and it is def coming from there. do you think it will be ok to drive? I was thinking of talking to a buddy at a body shop and seeing if they go use a stud welder to pull the pan a bit?

 

[addo]

Do it! Sounds like a cool, quick fix. I'll save that one for the bag of sneaky tricks. Glad it started, too.

 

[XFlow_Fairlane]

yeah turns out my idle screw was turned in too far......guess the bigger motor needed some more air. gotta tweak the timing more but took it for a little drive (clanking and all) in the snow and wasn't too bad....little soft on top but timing should fix that I hope. this motor is low compression (8:1) and my old motor had a milled head on it so right now they feel like the same amount of power......although now I will have to work on the turbo I think

 

[goinbroke2]

You did fire it up and run at 2000 or more for 45min didn't you??????
Depending on how much time you have on the engine, I would still break it in!! (unless it's got an hour or so already...)

 

[XFlow_Fairlane]

yeah I ran it for about 10 mins then went on a drive around the area (long straight country roads. the motor and been previously rebuilt but I wasn't thinking and when I turned it upsidedown on the eingein stand with the rockers off I dumped all the lifters in teh block and had to pull the head and decieded to inspect the rest while I was at it