My mechanic sugest the same thing just hone out the block new rings keep old piston,s
But this is the A12 i that had the same problem ass the A14 in the car now.
Aftter i removed the piston both of my machanic had a look at all piston,s and the bore
And said thay still dident know y it was fouling nmb four plug. one said maby that bore had change shape maby oval. I would have take it to the their machine guy and he would mesure it

Two replys were given. Do you have another question?

Bump still like to hear both replys???

Yes i will do that
Bige we have talked before. The seller on ebay i wanted to know more about has quoted me $320
for a full rebuild kit for A12. To me that sound like its to cheap that y i was asking the Question as this is the first rebuild i Dont want FK it up

i do rebuild kits for, datsun a series engines,may be able to help with other types of engines as well.pm me if i can help. cheers

Smoke and oil-fouled plugs are solved by new rings and new valve guides & valve seals.

So get new rings & gaskets, and a have the head checked out.

I just want a good engine. The A14 in the the car has fouled the plug allmost straight
away aftter the last time i pulled it out to clean.
Iam just sick of geting under the bonet all the time and i have had these datsun,s for a long time and never spent hardly any thing on them. Dont get me wrong thay allways have been on the road. And i dont want to send any more than i have to i just think if i did spend i bit of $$ on it i woundent be under the bonet so often> and wouldent have worrie about the cops seeing all the smoke out of my car

Seems that no one here has purchased an engine kit from lotus61963.

While we're on the topic, a rebuild kit is rarely neeeded for an A-series engine. Usually just an overhaul is needed -- Rings & Gaskets. Most times the bearings are just fine, you can check them with plastigauge. Pistons and oil pump rarely need replacing unless they are damaged. The factory service manual contains the procedures and specifications for inspecting them.

Bump

Has any body got a engine rebuild kit from lotus61963 on ebay?
What are thay like? Thay have a good rep on ebay and cheap