Gets a little emotional on this topic sometimes. It can be the head is not quite flat, there could be a little damage, or the gasket just failed. People used to have good (or often bad results) with the copper/paper/steel composite layered gaskets. I found that if the surface wasn't quite right or the stud tension wasn't quite right the paper layer in these gaskets would push out and let the oil escape. Especially because it's near the corner, the clamping pressure isn't very good here near the oil feed.

The Payen or equivalents are good, but just have a yarn to Minisport. They've sold more head gaskets than I've had hot dinners, so they'll give you another gasket ot try or give you some pointers.

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

Thanks Mick,I will call minisport tomorrow

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1967 Morris mini Deluxe
1968 Buick Riviera
1979 HZ Kingswood
1979 CM Valiant
1982 Jaguar XJ6 series 3
2002 VX HSV
2013 Mazda 6
2018 Gt Mustang

Go over the block and head with an oilstone to remove high spots

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did I tell you that I won a trophy?

Thanks Simon will do

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1967 Morris mini Deluxe
1968 Buick Riviera
1979 HZ Kingswood
1979 CM Valiant
1982 Jaguar XJ6 series 3
2002 VX HSV
2013 Mazda 6
2018 Gt Mustang

Preferably a new one...

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"Show me the Mini!"

For small bores the Victor Reinz one from Germany is pretty good, it's a steel + composition one.
For 1275s, the AF470 is a composition gasket like a BK450, but it has an O ring for the oil feed hole instead of a copper ring. May seal better where head isn't quite flat.

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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.

Hi Kevin,
Talked to Greg at minisport today and he also recommended the victor reinz gasket for my deluxe 1000 but it looks like its out of stock.
He also advised I should get the head decked even though it was not leaking before.
Should i just get the HYL3610 again and use Hylomar also if I cannot find a victor reinz gasket.
Regards Felix

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1967 Morris mini Deluxe
1968 Buick Riviera
1979 HZ Kingswood
1979 CM Valiant
1982 Jaguar XJ6 series 3
2002 VX HSV
2013 Mazda 6
2018 Gt Mustang

I would use what you can get for now. Retighten when hot, then again after 1000 km or so.

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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.

Thanks Kevin

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1967 Morris mini Deluxe
1968 Buick Riviera
1979 HZ Kingswood
1979 CM Valiant
1982 Jaguar XJ6 series 3
2002 VX HSV
2013 Mazda 6
2018 Gt Mustang

By retighten do you mean same torque again?

Sent from my SM-A515F using Tapatalk

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http://www.ausmini.com/forums/viewtopic.php?f=3&t=93352

If I'm carrying on like a pork-chop, I'm having a great time.

If I go very quiet there's a very good chance I broke something.

Yes. Back nuts off 1/8 turn in sequence and retighten. Then check rocker clearance.

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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.