Thread: No acceleration, engine dies.......

Hi Discorevy,
So I took the rocker cover off this morning, all the injector rocker nuts were tight, a good start, I then checked the timing marks, with the pin in the camshaft and the plug out of the bell housing I could not see the slot in the flywheel. I then removed the bung out of the head and checked all the camshaft sprocket bolts, they were all tight.......

I released all the sprocket bolts, one was a bit tighter than the rest. I now moved the crankshaft to align the slot, maybe a 1/2 a hole to 3/4 of a hole out of where it was.

Put all the bolts back in torqued them up correctly, same as before, started her up, started first go sweet as a nut. I still hadn't found the reason why the sprocket had moved, I know I had torqued up all the bolts correctly and I know the timing was right.

Went out for a test drive, first two kilometers same as always, beautiful. About a klm from home there was a slight judder, felt like a bit of a misfire, turned the corner into the home stretch and the engine stopped dead in its tracks, came to rest at the side of the road. Tried to turn the engine over, sounded very tight, every now and again would turn freely. Decided to get a neighbour out to tow me home.

I have now removed the head after I couldn't turn the crankshaft with my socket spanner. Below is what I found when I removed the head and the cam carrier. I would guess by looking at it I might have got some crap or dirt in an oil way somewhere. Dunno, all I know right now is the head is "rooted".

I made sure I didn't put any sealent in the oil ways and I air blew everything prior to assembly, plenty of oil pressure and plenty of oil around and about, plus I used an assembly fluid whilst rebuilding.

I'm sorting out a plan B with my old head right now............. Oh what an adventure.

Thanks to all for your support over the weekend, at least now I have found out what the problem is. Well done Discorevy, pretty damn close.

Cheers Marty

Originally Posted by Nomad9

all I know right now is the head is "rooted".

Cheers Marty

Maybe not

It may be possible to line bore the head, install bearing shells, new cam and "bob's your uncle". Certainly worth a visit to your local head re-conditioner before junking the head


Deano

Geez, what a bugger, all that work , you must have been just a bit unhappy . did you use silicon on the cam carrier? , its just that it looks like silicon blocking off one of the oil galleries, might be just my eyes though.

Hi Discorevy,
I've been around to my local head recoditioning guy this afternoon, he's done some checks and reckons the head is twisted through the camshaft journals. The face of the head is flat and the cam carrier sealing face is flat. Somehow the journals are out of alignment.

I asked him about shelling the journals he tells me he has done one or two of these but wouldn't recommend this as the answer. He has finished servicing my original head which has done 485,000 klms and not been off, evidence of plastic dowels however not functional. He only had to take the lightest scratch of the head so that one is now going back on. Still on the original valve guides.

I'll have to find an early head from somewhere for my stepsons D2.

Cheers Marty

Hi All,
So the story has unfolded somewhat......... I was cleaning up the block ready for the installation of the orignal recon head. I noticed something in the oil feed hole to the head, it appears that a small peice of the rag that I put in the hole whilst I cleaned the head first time broke off and rmained behind causing a restriction to the oil flow to the head.
I am quite fastidious about this particular oil hole in the head due to the obvious issues at this could and now has created. One peice in one peice out and thats is what happened. A quite expensive lesson learnt here.

The hole in the head gasket is marginally smaller than the actual hole in the block and the head. If the hole in the head gasket had been marginally bigger the bit of rag would have passed through, then more than likely just plugged off one of the other journals.

Can't be p!ssed with anyone but myself..............

Cheers Marty

Originally Posted by Nomad9

Hi All,
So the story has unfolded somewhat......... I was cleaning up the block ready for the installation of the orignal recon head. I noticed something in the oil feed hole to the head, it appears that a small peice of the rag that I put in the hole whilst I cleaned the head first time broke off and rmained behind causing a restriction to the oil flow to the head.
I am quite fastidious about this particular oil hole in the head due to the obvious issues at this could and now has created. One peice in one peice out and thats is what happened. A quite expensive lesson learnt here.

The hole in the head gasket is marginally smaller than the actual hole in the block and the head. If the hole in the head gasket had been marginally bigger the bit of rag would have passed through, then more than likely just plugged off one of the other journals.

Can't be p!ssed with anyone but myself..............

Cheers Marty

It's proberly no real consolation but atleast you found a reason. There would be far more time spent wondering what caused it if you didn't , than there will be being annoyed at yourself for something so small that caused such a big issue.

Cheers Ean