[Healeys] Healey BN1 Head gasket

[Oudesluys]

The origin of the damage looks very much like a cold engine forced to 
deliver peak performance.
Always heat up any engine slowly by driving normally until the oil 
pressure starts to drop a bit, i.e. usually around 15 minutes.
Another cause may be running the engine without thermostat.

Kees Oudesluijs.


Op 30-8-2017 om 14:55 schreef David Porter:
>
> 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.
>
> DaveP
>
>
> On 8/29/2017 10:46 AM, Wayne Schultz wrote:
>> Hello,
>>
>>            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.
>>
>>                                        Wayne
>>
>>
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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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