rebuild help no spark

mr_mopar_neon · Post by **mr_mopar_neon** » Tue Mar 30, 2010 12:59 pm

hi guys need some help am pulling my hair out over here.

just put the engine back together after doing the head (cam, cam gear, over sided valves and better springs as well as having her ported and polished)

only thing now is there is no spark at all. there is fuel going in and the engine is turning over but nothing.

the head was away for 2 months so am 99% sure ive doing every thing i can remember for that far back.

any ideas

r/tguy02 · Post by **r/tguy02** » Tue Mar 30, 2010 1:12 pm

well since you didnt go any further down than the head, i'd look at your coilpack plug and cam position sensor.

mr_mopar_neon · Post by **mr_mopar_neon** » Tue Mar 30, 2010 1:15 pm

its not the plugs or the wires iv done a spark cheek of the coil and nothing cheeked the coil and thats fine

r/tguy02 · Post by **r/tguy02** » Tue Mar 30, 2010 1:16 pm

what about the cam position sensor?

mr_mopar_neon · Post by **mr_mopar_neon** » Tue Mar 30, 2010 1:19 pm

i have conected it any ideas on how to test it???

r/tguy02 · Post by **r/tguy02** » Tue Mar 30, 2010 1:24 pm

to be perfectly honest...no lol do you have a spare to swap out? also this may sound retarded but you did put the magnet on the new cam right?

Danteneon · Post by **Danteneon** » Tue Mar 30, 2010 1:25 pm

I think what R/T is suggesting is that the coil pack plug and the cam poss sensor plugs may be reversed. It's a common mistake since the plugs are the same and will reach both items.

Look at the cam sensor plug...is there a good amount of extra wire kind of hanging there? Is the coil pack wire just long enough to reach it but seems almost to short? If so, switch them around.

mr_mopar_neon · Post by **mr_mopar_neon** » Tue Mar 30, 2010 2:24 pm

r/tguy02 wrote:to be perfectly honest...no lol do you have a spare to swap out? also this may sound retarded but you did put the magnet on the new cam right?

o do you mean the magnet that still stuff on the end of the old cam.

i bet its that lol i can see it now, will have to pop the plate of tomorrow and have a look. make sense if its not there.

will let ya know how i get on

r/tguy02 · Post by **r/tguy02** » Tue Mar 30, 2010 7:08 pm

it was a shot in the dark lol, yeah just pop the cps off and bolt the magnet to the cam, put it back together and you should be good to go.

mr_mopar_neon · Post by **mr_mopar_neon** » Wed Mar 31, 2010 2:42 pm

well i did the magnet 1st thing today and still no.

i was getting a spark but still no look.

had a look at the timing and it was 1 notch out, so every thing out and re set and then BANG blow of the air intake (no damage)

put back together and it just shes firing down the intake manifold.

am thinking the cam is 360 degrees out running in revers???

am going to have a look tomorrow.

am more ideas any one???

mr_mopar_neon · Post by **mr_mopar_neon** » Wed Mar 31, 2010 3:28 pm

just got a code of her 1684 wich as far as i know is about the battery, an out of charge the other day

r/tguy02 · Post by **r/tguy02** » Wed Mar 31, 2010 5:50 pm

Well that def took care of the spark lol. I'd say your timing is def way off

INVUJerry · Post by **INVUJerry** » Wed Mar 31, 2010 6:01 pm

When you put the cam in, was the block at TDC? If so, which was was the pin on the cam facing? It should be facing straight down, not angled at all. I did a similar mistake, and I was one tooth off on the cam, and it ran like poop. Check that, and report back.

Post by **occasional demons** » Wed Mar 31, 2010 6:21 pm

Also, were the locating pins intact on the cam magnet? Cam bolt torqued to 85 ft. lbs?

When setting the timing, always rotate (by hand/plugs removed), a minimum of two complete revolutions, and re check the timing marks. This way if it isn't right, you will not damage anything. Or leave the rockers off until timing is set.

mr_mopar_neon · Post by **mr_mopar_neon** » Thu Apr 01, 2010 4:10 pm

right well had another go this morning before work and the timing was one pin of again.

set up the timing again and guess what just the same.

the magnet went in the to locating pin holes just fine.

am now thinking the cam gear could be wrong with it moving one tooth 3 times now. tomorrow ill have anther go get the cam gear of and comper it to the old one.

really need to be on the road for sunday!!!

r/tguy02 · Post by **r/tguy02** » Thu Apr 01, 2010 4:28 pm

alright well when you have the stock cam gear, there is a little arrow/notch on the edge, it should point straight up when the #1 piston is at TDC if you have the timing correct.

mr_mopar_neon · Post by **mr_mopar_neon** » Thu Apr 01, 2010 4:45 pm

yup thats what am thinking am really hoping it is this because am running out of ideas

Post by **occasional demons** » Thu Apr 01, 2010 8:28 pm

It can be tricky, the first time.

The problem is that when the tensioner takes up the slack in the belt, it pulls the gear towards the slack. You may need to set it one tooth ahead, and tension it, then check the notch position. Rotating it just ensures that everything has seated, and is in it's proper place.

This is also why milling the head in any signifigant amounts requires an adjustable cam gear. The centerline distance between the crank and the cam becomes smaller, thus creating more slack on the tensioner side, moving the cam timing back a little.

I found these a little easier than the old 2.2's with the eccentric pulley that you had to move with a wrench, and tighten down the lock bolt. There seemed to be a lot more intial slack to take up.

mr_mopar_neon · Post by **mr_mopar_neon** » Fri Apr 02, 2010 3:55 pm

well got to the bottom of it tonight the cam gear was 45 degrees out of line on the timing mark

so all sorted now turned the key and of she went. just some little stuff to do yet got dark and started rain

thanks for your help peps

r/tguy02 · Post by **r/tguy02** » Fri Apr 02, 2010 5:47 pm

glad we got you pointed in the right direction

mr_mopar_neon · Post by **mr_mopar_neon** » Sat Apr 03, 2010 6:05 pm

thank god you told me about the magnet i would of never of got that