[Healeys] Healey BN1 Head gasket
frogeye at porterscustom.com
Wed Aug 30 06:55:31 MDT 2017
Not at all uncommon on the 4 cyl engines. Easy solution is to have
copper/steel/whatever O-rings made to sit atop the regular head gasket.
I used to have Mordy Dunst at Gasket Works make them for me.. Unsure if
he is still in business. Typically I had them at .002-.003 in thickness.
This allows a bit more sealing around the bores. Used a smear of lube to
hold them in position when dropping the head on. Follow installation
with a good coolant sealant (K-Seal) prophyactically.
On 8/29/2017 10:46 AM, Wayne Schultz wrote:
> My friend Bob had a problem with his Early BN1. The engine
> was rebuilt 2K miles ago or so and after several trips at speed on the
> highway cylinders 2 and 3 lost compression. The picture explains what
> we found when we pulled the head. The head has a 4 thousandth warp
> between cylinders 2 and 3 and a 2 thousandth warp between cylinders 1
> and 2. The engine was rebuilt by the previous owner so we don't know
> what was done , but the head looks like it was milled before. Bob had
> planed on installing a aluminum head soon anyway so not a big deal. I
> thought people would like the picture. We are installing a Denis
> Welsh head with new hardware and their steel head gasket.
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Dave Porter Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM
87107 505-352-1378 Go HERE: my world www.porterbikes.com/
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