Apologies firstly for not being on here for most of last year, life commitments etc took over... I was hoping to give a final update to my restoration thread but last night saw me shed a tear
In brief the car apart from a couple of things is actual finished has been for a while, got the bug over Christmas period to get it on the road for March Something has been playing on my mind for a while, the coolant has been dropping, about 10mm off max a couple of times, I put it down to air locks freeing up. Bearing in mind the car hasn’t seen the road since being rebuilt, so only ever idled on drive. Chatting with a friend recently I noticed the oil on the dipstick is slightly cloudy, oil filler cap clean as a whistle, I assumed possibly assembly lube (green) Ester oil (red) and millers running in oil (clearish yellow) maybe created this added with condensation in the block of not reaching driving operating temp.
Last night I removed top mount to have a fiddle with the injector loom, thought while it’s off check the colour of the plugs. Err I wish I had taken some photos now, but basically no 1 and 4 were dripping wet I mean liquid dripping off them!! Last time it was started was possible October last year.. plugs are thick black, no 2 & 3 not wet wet but not dry again black. Once wiped the plugs are like brand new no corrosion at all.
Once I finished crying and moaning then a bit more crying I started to think back to when I first took the car off the road in 2012. It was over fueling massively, engine oil had petrol smell, also really strong under the rocker. I put 15L in 2016 only started it maybe 5 times, a few of them times I left it running for a while until fans kicked in, but it’s gone through all of that already so I’m wondering if it’s an over fueling problem or a head gasket problem? I know there not the best on fuel but 15L only idling probably combined for 2hrs, too fuel dragsters use less
The head gasket I’ve had since 2005 genuine Nissan gasket, kept flat and clean, but possible dried out??? Can they do that? Or as I didn’t get the head or block decked there warped?
So weekend I plan on doing a comp test, also a thread I found on here Bob advised someone who potentially had a head gasket issue, of putting 40psi compressed air into the cylinder at tdc and seeing if air bubbles appear under rad cap.
I’m also going to remove the HKS fuel controller from the equation just in case that’s the issue. It’s a really old one, can’t remember the model.
I don’t think it’s a boost leak as every hose is brand new, and new clamps, but will still check.
Had a quick look at the afm but couldn’t remember what voltages I needed to look for
Any thoughts chaps?
Happy new year by the way!!