Don't know about your TR7, but my MGB engines all have tabs on the
bearing shells that would prohibit this type of installation, maybe your
#1 and #5 do too.
I think you have long passed the point of diminishing returns here and
are well into negative territory. Rent an engine puller, buy an engine
stand, and do this job right, which will now include grinding the
crank! Resize and rebush the rods too while you are at it.
Eganb@aol.com wrote:
>
> Folks,
>
> The good news is that I am writing this email asking for help. That means
> I''m not sitting on my back under my TR7, staring at the crankshaft that
> obviously hates me.
> I'm not one to give up -- usually I'll work until I really break something,
> so I'm making progress...
>
> I'm trying to replace the main crank bearings on the car, and I am having a
> hell of a time getting old top ones out, and the new top ones in. #2,3,4
> went in without too much complaining, but #1 and 5 have fought me all the
> way. I have had to tap the old ones out with various thin instruments
> including a kitchen knife, and the news ones have refused to go in without
> additional tapping.
>
> In the process I have scratched and nicked the crankshaft where the bearings
> ride, a real no-no, and I had to do so much tapping on the end of #1 that I
> think I closed off the center oil channel. And now of course I can't get the
> bloody thing back out.
>
> I'm already resigned to buying another set of bearings, but isn't there some
> way to get some slack on the crank to make this less painful?
>
> As to the scratches and nicks on the crankshaft, just hold my breath?
>
> As usual, thanks for keeping the laughter to a minimum.
>
> Bruce
> 1980 Inca Yellow TR7 5-speed convertible
> Chapel Hill, NC
--
Stuart MacMillan
Seattle
'84 Vanagon Westfalia w/2.1
'65 MGB (Driven since 1969)
'74 MGB GT (Restoring)
Assisting on Restoration:
'72 MGB GT (Daughter's)
'64 MGB (Son's)
Parts cars:
'68 & '73 MGB, '67 MGB GT
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