FollowupID: 462058 Submitted:
Thursday, Nov 02, 2006 at 13:08
cookie posted:
Yeah there is a whole lot more detail to the story but I would need 3 pages.
The diagnosis was a debacle in itself. I had made my own assesment and then took it to the mitsubishi dealer who advised the oil was leaking from the lower sump pan and which I took at their word and booked it in to be repaired. In the mean time I had another look at it and was sure the oil was coming from higher on the motor and advised them when I took the vehicle in and they then washed down the motor and advised the oil was leaking from the head gasket and sump pan. Sounded a bit suss to me to I took the vehicle back and took it to another repairer who also advised oil was leaking from the head gasket, no mention of the sump pan.
I kept driving the vehicle for another month or so weighing up my options before I decided to go ahead with having the head gaskets replaced. I have the complete service records since new and there is mention of a minor oil weap from the left head gasket at rear since 50000k's so it seemed to be that this had just got worse over time(now 150000). Only one was leaking but I was advised if doing one it would only be a further small cost to do both which seemed sensible to me.
It only took them one week to do the initial repair at which point they advised me the engine had a funny ticking noise that wasn't there before the repair. They siad they would fix it before returning the vehicle to me. They thought it might be lifters so pulled the top of the motor off again to no avail. They consulted the local engine builder who did the final repair and he advised they should re-check the timing which they did with no change and then they decided to the remove the heads again to check for valve damage. Still didn't find anything and had to wait another week for a gasket kit from eastern states. Put it back together with same noise and they had some hunch it was the camshaft pulleys. Who knows why, they siad they had a vehicle with a similiar noise which they fixed by replacing the pulleys. Had to wait 2 weeks for one of these to come from Japan. Once it arrived they decided it was too hard and gave the car to the local engine builder, who has now repaired the engine with the diagnosis given in initial post. The engine builder didn't even use the new cam pulley's as there was nothing wrong with the old ones.
My guess is in there first attempt mitsubishi set the timing incorrectly and bent valves and that's been the problem all along. The engine builder said something about because of the 7mm valve stems it wasn't immediatly obvious they were bent.