[Healeys] crankshaft bearings - what make to look for?

Oudesluys coudesluijs at chello.nl
Thu Feb 12 02:00:31 MST 2009


Tadek,
The shells are made within a certain tolerance band, which means that 
there are very small differences in size. The same when you have a 
crankshaft reground, these are also ground within a certain tolerance 
band. If you have the smallest journal of the crankshaft with the 
largest diameter bearing, the play in that position will be slightly 
larger than in the rest. That is why you use the plastigauge, to find 
out whitch shells should be combined with which journal to get an as 
even as possible play in each bearing/journal.
Kees Oudesluijs


Tadeusz Malkiewicz schreef:
> Kees,
>
> The way I did it before with other engines was simply to buy next oversize
> bearings and have my shop do the crankshaft for this set of bearings - what
> do you mean by swapping shells to get the best tolerances???.. Are the
> bearings sold not equal??
>
> Best, Tadek
>
> -----Original Message-----
> From: Oudesluys [mailto:coudesluijs at chello.nl] 
> Sent: 11 lutego 2009 22:02
> To: Tadeusz Malkiewicz
> Cc: healeys at autox.team.net
> Subject: Re: [Healeys] crankshaft bearings - what make to look for?
>
> I am not so sure if there are great differences in quality between the 
> bigger brands, but Vandervell is regarded as one of the best for British 
> cars. However the main thing is that you choose the tolerances and 
> surface finish of the crankshaft properly and measure the play of each 
> journal with plastigauge. Go near the tight end of the tolerances given. 
> You may have to swap shells to get all tolerances as equal as possible. 
> Same with camshaft, but not so critical.
>
> Kees Oudesluijs
>
>
> Tadeusz Malkiewicz schreef:
>   
>> Hello, 
>>
>> I am beginning to look for cam, crankshaft & rod bearings for my 100
>>     
> engine
>   
>> rebuild. I am wondering what brand to look for, what is the best.
>>
>> All advice is appreciated...
>>
>> Also, I am wondering is everybody is selling the same gasket kits for the
>> engine or there are also different makes and some are a better choice?..
>>
>> Thanks,
>>
>>
>> Tadek
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