Hey all, finally got around to diagnosing the Brick...

Guess what?

ANOTHER FREAKING HEAD GASKET !!

I was pretty sure that the head is a little warped, now I'm sure....
Less than 150Km on this one (Pair, actually)



Clean Burn, right between 2 and 3.. same place it went the last two times...
I would expect that if it was purely detonation causing it, it would be more "Random" on the cylinder that it targets... but its always between 2 and 3 ...

Heads off to the machine shop on Monday.....

Kev, maybe time to talk about one of your "DRMini Specials" ..........

J

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james,, wouldnt have anything to do with them two leads being in the wrong spot maybe?? have you tried the acl gasket? Did u re torque the head? spose there are a few reasons why they keep blowing,, nothing to do with running 30psi of boost

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1974 Moke - 998cc
76 Clubman B16a2 Vtec AWD Turbo 12.9@105mph
https://www.youtube.com/watch?v=V9PW49e1hYs

Shhhh, it was only 16Psi on saturday....

Nahh, the leads were right to start with and they were only wrong for about 30 seconds.....

Just a nice warped head..... (sounds like something Mrs KazJim says about me..... hhhmmmmm)

J

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Jim....

If you want to try the ACL gaskets let me know...

Ive been a lazy git and still not gotten you a price.

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[Maverick] 1971 Mini K

Yes, Yes Yes !!

I'll grab a few and make it worth your time....

Make it 3 ?

Also, can you get the steel-backed Inlet / exhaust gaskets ? (Rover ones... EXCELLENT!!)

Thanks...
J

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I'll have to check the inlet/exhaust gaskets....I'll pay them a vist on monday and order some in if the price isnt too rough..It shouldn't be really.

And then Ill post you a PM..sound good?

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[Maverick] 1971 Mini K

James, just fit a 940 or 1316 head, and BK450 turbo gasket = no more problems! Chamber size = whatever you want up to 30cc or so.
ALL the smallbore heads flex more than the bigass 1275 ones do.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Only problem kev... you cleaned me out !

I'll have to chat with you by email.....
Got a 1316 almost ready to go ?

we'll work out a $$$ ... k ?

MiniK... maybe hold off... i might need to order a different head gasket yet.....

Cheers
J

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Take your pick James--
#1, 12G1316- needs exhaust seats but that's no problem to get done. I have some Rover unleaded inserts.
#2, 12G1316- G.R. & I fixed the rusted inlet seat with a 4140 insert, it just needs all seats recut now and it's a goer.

Both heads are bare now but I have 1 set of valves-
If I were you I'd buy new ones. They are pretty cheap now.
1100S inlets 12G941 $14.12 each
1275 exhausts 12G1322 $20.32 each.
Karcraft's prices- not worth mucking about with S/H is it.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.