In the worst case, they fall out. After spinning around and destroying
their locations on the block.
Thrust washers are available in oversizes if necessary. I've not done a
thrust washer change with the block in situ, but I'm pretty sure that it
is straight forward. The rear main cap has to come off, then the washer
is rotated around the crank. The washers don't have locating tabs.
Kelvin Dodd
> -----Original Message-----
> From: ejrussell@mebtel.net [mailto:ejrussell@mebtel.net]
> Sent: Monday, November 19, 2007 3:03 PM
> To: Dodd, Kelvin; mgs@autox.team.net
> Subject: RE: [Mgs] questions about '78 MG Midget
>
> A few have mentioned the thrust washer issue.
>
> Do the thrust washers wear out & fail or fall out?
>
> Can I assume that dropping the oil sump and removing a main
> cap is the way to check/fix? And that this is possible
> without removing the engine? Are there various thickness of
> these washers or is it as simple as buying a new set (one
> size fits all) and replacing?
>
> Eric Russell
> Mebane, NC
>
>
> > Have your friend engage the clutch while you look at the
> front crank
> > pulley. Look for thrust movement of the crank pulley.
> >
> > Thrust washer failure is extremely common with the 1500.
> > Any thrust movement will cause the rod bearings to wear our
> > prematurely. Replacing them and checking the thrust
> surfaces should be
> > normal maintenance every 40,000 miles.
> >
> > Kelvin Dodd
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