3b timing problem

[WidowmakerS2]

Rebuilt distributor, fired up. Still Will not start when warm. If i let it sit for a few hours, ut starts again. Tried switching the G4 and the G28 with no results.

[WidowmakerS2]

Just so the thread doesn't die before I've come to a solution, I'll keep posting here.

-Ordered up a new hall sensor, rotor and metal gear to rebuild the distributor.
I'll take pictures when I've taken it to pieces.

[yodasfro]

Couldn't tell from the pics on the rotor it may be correct. As far as the no hot start I would suspect that the hall sensor in the dizzy is starting to fail.

[WidowmakerS2]

Is the hall sensor clean? Does the dizzy have a metal gear?

Thanks for the replies newsh, greatly appreciated.

Cleaned it with contacts cleaner when I had it out. The gear is plastic, but looks allright.

[newsh]

Is the hall sensor clean? Does the dizzy have a metal gear?

[WidowmakerS2]

Should probably change the topic text, as the timing doesn't sem to be the culprit. It starts when cold, but not when warm.

[WidowmakerS2]

It looks like you don't have the narrow 3B rotor too? Not that would prevent it from starting that is down to the timing marks, but it would be wise to get one or file the current one own to size.
It's probably worth noting that pics of the timing marks linked on the first page show the flywheel mark on 200 20v with the 016 transmission which lines up a little different in the window on the bellhousing than the 01A in the S2.
http://s2central.net/temp/timingbelt2.jpg

You could be right on the rotor, although i measured it to 11mm. Is the narrow one even narrower?

When mine was lined up, it was with the line aligned with the straight piece in the bellhousing, and I could see half the "0".

[yodasfro]

It looks like you don't have the narrow 3B rotor too? Not that would prevent it from starting that is down to the timing marks, but it would be wise to get one or file the current one own to size.
It's probably worth noting that pics of the timing marks linked on the first page show the flywheel mark on 200 20v with the 016 transmission which lines up a little different in the window on the bellhousing than the 01A in the S2.

http://s2central.net/temp/timingbelt2.jpg

[WidowmakerS2]

Went out to do something with one of the other cars today, but i brought the keys for this one. It fired right up :-/

[WidowmakerS2]

You can't rely on the lower front pulley marks, they can be way out. On the 3B you must use the zero mark in the bellhousing window and you must roll forward onto it to take up any backlash in the cam belt and dizzy drive.

Yes, thats what I've done this time around. Didn't take up the slack in the dizzy, but it did start.
I'm at a loss for why it wouldn't start again though.

[newsh]

You can't rely on the lower front pulley marks, they can be way out. On the 3B you must use the zero mark in the bellhousing window and you must roll forward onto it to take up any backlash in the cam belt and dizzy drive.

[WidowmakerS2]

I had a similar issue with my 3b, turned out I had lined the fly wheel on the mark. I had mine lined up with the line on the fly wheel and not the line with the zero. Gave myself a few doh 's for that one.

I can't see that line anymore. Using the line with the "0".

[quattrostyle]

I'm thinking, either the front crank sprocket has come "loose", or the hall sensor is on it's way out. A friend is bringing a locking tool over next weekend, so will be able to check that. The search for a new distributor is on!

1. Get an improved sprocket while you're at it from this forum, see for sale section.
2. I believe you can replace the hall sensor, or was that only on ABY/AAN/ADU?

[supersonic112]

I had a similar issue with my 3b, turned out I had lined the fly wheel on WRONG the mark. I had mine lined up with the line on the fly wheel and not the line with the zero. Gave myself a few doh 's for that one.

Missed a bit out, feckin tapa c@ck

[supersonic112]

I had a similar issue with my 3b, turned out I had lined the fly wheel on the mark. I had mine lined up with the line on the fly wheel and not the line with the zero. Gave myself a few doh 's for that one.