Hello, can anyone help me on this one, got a GT6 mk3 engine in a Mk1, its not playing nice at the moment. I have just replaced the rocker shaft assembly with a completely new one as the old one lacked lubrication at the front of the engine and 'cooked' the other day. new assembly installed, started her up ran great, got hot, ran like a bag of spanners. It would appear I have absolutely no oil coming up to the rocker for lubrication, I have no intention in fitted one of these after market external feeds, but was wondering if anyone had any idea where the most likely place the blockage would be? I have removed the oil cooler feeds and emptied this out, i have also removed the complete oil filter & housing and both items are clear and had oil in them. I removed the 3 no external plugs to the gallery first and there was no oil coming out of them at all? Now the car hasn't run for a week or so, should I expect to find oil in the gallery at all times or should I expect it to be empty as the oil has dropped into the sump? Have removed the screw out of the rocker assembly and squirted oil in, this fills the shaft and runs out the back of the head via the plug to the rear. I'm thinking catastrophic failure of the oil pump, or a blockage in the engine , but it starts with great oil pressure reading!
I had just done a flush and put new oil & filters in after the first rocker failure, and I did pull out 2 no tiny 'O'rings from under the rocker cover on two occasions that were completely in tact.
I'm puzzled about where to start looking really, any ideas?
Thanks
Hag