M42-318is...motor cut out

[Vladi]

When the ECU looses power it looses the codes also...

[e30nut]

When the ECU looses power it looses the codes also...

Yeah I know, 1444...should have done this while waiting for the tow truck

[e30nut]

...because the timing chain is no longer attached to it. Smart sensor huh?

So, I popped a timing chain w/o any noises...good thing, fingers
crossed. I have a new chain. Hopefully I didn't have valves crash.

All those M20 timing belts I changed religiously and a freakin CHAIN
decides to break on me...

Glad I finally go around to taking off the valve cover.

This explains the whrring on start...no valves are moving. I hope the
chain didn't tear up too much stuff...new rail/runners up front for sure!

cheers!
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[e30nut]

Head was rebuilt, I guess they did not replace the chain. I put the
improved chain tensioner in during the swap, and never had any chain
lash. I heard no bad sounds when the engine cut off, but I gotta
believe I have a bent valve or two. It's inevitable, right? Hopefully
no piston damage!

My questions:
The chain is wedged in under the intake cam gear and I cannot rotate that
cam to TDC to lock it at the rear. Crank is at TDC and flywheel is
locked with a pin. The damn crank bolt has already broken my 1/2"
crapsman breaker bar...thanks to big pipe extender. Now ISO a 3/4" 22m
impact socket and bigger pipe! BTW, 1/2" Impact gun did nothing for
me. I'd usually spin the starter to break free this bolt, but I dare
not under present conditions. Any tricks for getting this free?

Also, can I just loosen up the head to clear the valves instead of
taking off the cams 1st as the manual suggests? I actually have a
electrons (manual) for the M42 motor, so that's a plus!

Is it time for an M50/S50/S52 swap? hmmmm...haven't had too much
luck with the M42...2 broke, 3's a charm? wait, the 2nd motor CAME
from Charm City...

cheers!
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[e30nut]

bump

[madman mike]

So my 91 left me in the parking lot in McLean yesterday.  I get in, engine spins, but no familiar fuel pump humm.  So I dropped in new relays hoping for a cheap fix.  But still no dice.

Got a pump on order, guess that's the next step?

what else could cause the the fuel pump to stop buzzing away?

thanks

[Vladi]

Give the pump a few whacks and see if it works. This its age showing up...
Also you could pull out the pumps relay and short together pins 87 with 30 and see if it starts buzzing. If it doesn't then it's the pump.