Some may remember I thought the bottom end had gone about a year ago. I was giving it some stick when the power dropped right off, terrible vibration and noise and oil pressure dropped to nothing on the gauge. I turned off, towed it home, stuck it in the garage and basically forgot about it as it was just a weekend toy.

At the time a few people said it won't be the bottom end and it sounds electrical. Well after a year of it sitting in the garage I tried turning it over on the starter with the plugs out and it made good oil pressure. I've since started it and it runs and oil pressure seems okay. It's running really rough and only on two cylinders by the sounds of it.

I now think it must have dropped to 2 causing the massive loss of power and vibration and the oil gauge reading zero must have been an electrical problem.

All main fuses seem fine and I'm about to check the auxiliary fuses. Does this sound like it could be a fuse problem? The cooling fans aren't working and my ecu diagnostic light isn't working which both worked before it threw it's wobbler.

Any suggestions?

Cheers.

 

id start with a compression test m8

 

Didn't mention conpression is fine and all spark plugs intact so haven't melted a piston.

 

tried a dizzy cap?

 

id give it

oil and filter change
plugs
cap
arm
sensor kit (may not have been changed for a long time)

just a good general full service and go from there

 

I checked all of the auxilary fuses today and they were fine. Gonna do as suggested above and check each plug and lead next.

 

If would first determine whether it is in fact misfiring, by removing leads in turn and see if there is any difference in the running of the engine, if not those cylinder(s) are the problem ones(s)

If so, maybe try swapping the plug/lead with a good cylinder(s) and see if the problem moves, if so then the lead/plug is the problem.

Certainly does not sound electrical related to me more ignition, possibly even fuel related.

Also do you have all four 'lugs' intact on the crank pulley?

Martin

 

Cheers for the advice. Gonna have a play around with it over the weekend.