So yesterday I had the mother of all horror stories happen. Engine decided to lose all oil pressure and develop and clunking noise. I assumed I had oil pump failure seeming as the oil was sitting at 110 degrees with an outside temp of 2 degrees, way above normal as it should be sitting around 70 - 80 tops on a thrash, and I normally struggle to get it up to boost temp as I don't run undertray or arch liners. I cut the engine off as soon as I could hear a horrible noise, but no idea if it had actually given up before I heard the anything as you can't really hear much at 6k rpm (not to mention it would still be producing some oil pressure at this rpm).
I spoke to Abbey and Horsham who both said they haven't heard of an oil pump failure and is probably down to just the bottom end giving up. (maybe it's just a US thing?!)
It's sitting at 55k now and not done far off that boosted but this is the first time the engine has had any problems since being built back in 2008 I think was? She was serviced couple months back, and still holding oil with no smoke blowing or leaks.
I imagine (if the pump hasn't failed), I could get away with maybe bearings and possibly a crankshaft if I cut the engine off before damage started occurring. Worst case is a complete bottom end rebuild with potential rod damage, and if shards of metal decided to grind away up the bores, I could be looking at pistons and block as well which is obviously ££'£££.££ seeming as I am fully forged.
Now to weigh up my options. I found my garage that would be carrying out the work if I decide to go ahead subject to damage/cost. I will be dropping the engine out over next few weeks and have them strip it as soon as possible. If the engine is totally shagged, my options would be to either,
Rebuild the VQ with uprated cams, injectors, fuel pump, actuators, turbos, ecu etc and go for a lot more power,
Or do an RB26 conversion as I love the straight 6 and not a fan of 2JZ (not slating),
Or part out the whole car get and new hobby.... or toy. Which would be a shame considering the amount of money I put in last year on clutch after release bearing ruined my triple plate, new wrap that is still waiting to be applied, akebono BBK plus 2/3 sets of new wheels to try fit over the brakes, and a new fuel tank!
If anyone has experienced an oil pump failure or bottom end with similar symptoms to mine, your input would be great. Vultures please hold back for now as I haven't made a decision yet
Any other input or advice would be great also