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That's alright then. Here's a photo of the tappet slides. Thanks

Got a bit more time to work on it this evening. Got the head off, the tappet slides have quite a lot of scoring down the side of the brass bits,also the oil feed in the head gasket for the rockers seems incredibly small. Can't see how this would be an issue,but seems odd. Thanks

Just picked up a galvanised roof rack, how many aerosols do you think I'd need to spray it in buzzweld? Thanks

By that do you mean they don't have to be machined when they are fitted? Thanks

Here's a photo of a big end and main Bearing shell, they are all in the same sort of condition. I'm very grateful for all the suggestions I've had on the forum, the response has been amazing. I'm not ready to give up on it just yet, I've done almost everything else on it so it's just this left...

Thanks for the responses. Good to know that the flat bit on the cam is meant to be there,can rule it out. I was told the engine builder was quite good,but starting to doubt that now. They do seem to have worn quite unevenly as well. I supplied them the Glyco shells, they fitted them and...

As far as I know the tickover is about right,but I don't have a revcounter so only doing it by ear. Thanks

Thanks for the response, I will check the pressure switch but I can't remember whether that's the same one as when it flashed on that time,I've changed things so many times.

Camshafts out, and there are several points as far I can tell. First of all,there is a flat machined onto the end of the camshaft bearing journal which I assume feeds the thrust plate on the end of the cam. Does anyone know if this is right,as far as I can tell it would drop oil pressure. After...

Sorry, misunderstood. Haven't tested the sensor but can do, it never came on after the engine had started though.

I tested the pressure gauge with a known mechanical gauge so I think that was reading alright. Thanks

Yes,they all measured up fine.

Thanks for the photo, everything seems to be the same on mine. Just thought it would be an easy thing to miss when I rebuilt it. Not much oil came out,but it was draining for several days before I stripped it. Will keep going.

Hi, Just in the process of removing the cam this evening, there is an oily residue underneath the front timing cover housing. Should any of the holes be plugged which could be leaking oil? Thanks

Hi, Thanks for the replies, It sounds like the general consensus is that I need to keep looking. Will get the cam out tomorrow evening and go from there. Thanks

Hi, Sorry it's been so long between posts, work has been very busy recently. Checked the piston cooling jets and all were ok,they were all firing about 20-22psi. Had the oil pump apart,the relief valve seems alright but the endfloat on the gears is a fair bit more than the manual. Endfloat ...

I remember the piston jet bolts as I had to get a new one after it sheared. Apparently the oil restrictor is built into the head gasket. Can't get a photo of the cooling jets at the moment, but I remember that they did at a strange angle as they had to locate one the block. Did check the rocker...

Will do, I'll order some. Not sure about the oil restrictor,but that would make it lose pressure throughout the temperature range wouldn't it?

I'll strip the oil pump down and check for the things you suggested,it was putting out plenty of pressure when cold though so don't reckon it's the relief valve. It's had several oil filters since this problem, I didn't notice any difference between them. Thanks for suggestions,it's going to...

No, I didn't get the crank ground,measured all the journals and they matched the manual so got standard shells. Had a look at the mains and big ends and don't show much wear. All the oil jets are intact as well. Thanks