davek9

Please don't guess and be careful running on less than 8 as a CAT fire can come next!
Get a timing light and see whats what, should point you to what's not working if its an ignition issue.

Good luck, keep us posted.

Dave

kmascotto

I've been towed back home...so now I can get a closer look.

kmascotto

OK so running a timing light one #1 plug wire indicates 10 degrees after top dead center

danglerb

I think the idea is to check all the plug wires. Maybe also use a piece of rubber tubing to listen to each injector.

kmascotto

They are all sparking...

Hilton

I'd stop trying to run it, and pull the belt covers off to check the timing marks.

You say you have spark on all 8? Which leaves fuel, and compression as the two candidates.

jeff spahn

is the spark steady. you could be sparking on all 8 but you need to know if it is steady.
get a spark tester and make sure it is firing consistently. erratic spark could be a dead amp on one side or the other.

the flyin' scotsman

is the MAF rebuilt? did it come disconnected?

kmascotto

i checked the maf and its connected & rebuilt buy JDS in 2008. its got spark on both sides of the motor (confirmed with timing light) I changed out the ignition amps with known good ones...no change. Fuel pump and filter are 2 years old. I intend to check the fuel pressure, but have not got that far. spark plug wires, coils are 2 years old.
could this be a LH failure?

kmascotto

Jeff, the spark is steady

the flyin' scotsman

recall the ign wires cross the motor..........check plugs fed by either distis

kmascotto

sorry i didn't understand that. do you mean check the wires from the coil to the distributor?

kmascotto

here is the video i took this afternoon

Mrmerlin

dont run the engine till you check the timing marks

the flyin' scotsman

spark plugs 1-4 are fed by both distis (as are 5-8)..........check all the plugs for spark down one side of the engine.