This is fine to get oil pressure before cranking the engine.
But, on an initial startup of a freshly rebuilt engine, the most fragile
component is the cam lobes. I have heard estimate of cam wear as high as
20% of total cam wear on an engine occurs the first 2 minutes of new
engine operation.
For this reason, it's always a good idea to liberally coat each cam
lobe, bearing surface and lifter face with a good cam/assembly lube upon
assembly.
Rick Morrison
72 MGBGT
74 Midget
On Sat, 27 Jun 1998 12:58:18 -0500 "DWADE REINSCH" <dreinsch@tenet.edu>
writes:
>A old time method of protecting a newly rebuilt engine was to leave
>the
>spark plugs out (no compression, very little load) and spin the engine
>until the oil pump had pumped all passages full and had pressure.
>Then
>put the plugs in, prime it and fire it right up.
>
>Dwade
>79B becoming an OF.
>
>BBubeck@aol.com wrote:
>>
>> In a message dated 98-06-27 12:27:43 EDT, tsherman@tecinfo.com
>writes:
>>
>> << I'm about to put my 76 B engine back together (I hope!!!) What
>should I
>> lube it with? Just engine oil or something thicker? Thanks. >>
>>
>> Tyson,
>> How about WD-40 (just kidding)
>> I used Castrol 20W50 and cam lube on the camshaft of couse.
>> I also filled the oil pump with petroleum jelly based on the advise
>of an
>> british car expert. I'm not sure how everyone else feels about this.
>I was
>> told this would ensure immediate pressure from the pump.
>> Bruce
>> 1974 MGB
>
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