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Re: Cam/lifter compatibility

Subject: Re: Cam/lifter compatibility
From: (Mark Jurras)
Date: Fri, 5 Jan 1996 08:30:55 -0500
>   Hi all.  
>   With the recent discussion surrounding rebuilds and initial
>   startup, I have a related question.  In a few weeks, I'll be
>   starting the rebuild in my MGB for the first time, and while
>   I understand the importance of breaking in a new cam to new
>   lifters, how about an original cam and new lifters??
>   Before I am chastised for doing this, I had the cam checked
>   by a machinist I trust, had new bearings pressed in and
>   fitted to the cam, and all lobes and lifter faces were smeared
>   with gooey Crane cam-lube during assembly.     
>   My father always taught me that it was foolish to use a 
>   new cam and old lifters, but it was fine to use the reverse.
>   What I am wondering is do the same break in rules apply??
>   -Scott
I heard (probably from the same guy who told my to keep the RPM low and
load high to seat main bearings) that if you have a leaky hydraulic
lifter that you should buy a new one and replace the guts in the old
one with the guts from the new one and reinstall the old one. This way
the cam/lifter mating surface doesn't change.  When I did my rebuild, I
found the worn valve train was the main reason the engine was so tired
and I replaced everything with new stuff.

That's what I have heard. YMMV

- -Mark      = =o&o

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