I am under the impression that all later model mgb's in the US are 'federal'
or 'california' and are low compression engines. I may be mistaken but 9 to
1 sounds pretty high for a US late model.
----- Original Message -----
From: Skye Poier <skye@ffwd.com>
To: <stevejp2@juno.com>
Cc: MG Nuts <mgs@autox.team.net>
Sent: Thursday, April 22, 1999 6:44 PM
Subject: Re: Compression
> Word on the street is that stevejp2@juno.com said:
> > I am going to check out a 79 MGB that I am interested in buying tomorrow
> > and I can not find the values I should get in a compression test
> > anywhere. Off to get a Haynes manual later. Does anyone have an idea
> > what the compressions should be?
>
> http://www.mgb.bc.ca/reference/specs.html
>
> Compression:
> 18G engines, 8.8:1, 160psi @ 275rpm
> 18V engines, 9.0:1, 170 - 195psi @ 275rpm
>
> Assuming the compression ratio is stock. Pull all the plugs before
> you check, btw. Might want to adjust the valves too.
>
> FYI my '66 B gets about 145-150 psi and runs very well.
>
> Low readings in both cyl 2 and 3 generally point to blown head gasket
(cheap)
> or cracked head (expensive). Usually accompanied by clouds of white
> smoke from the tailpipe.
>
> Skye
>
> --
> 1966 MGB The MGB Experience __,__\__ Safety Fast!
> GHN3L-70307 http://www.mgb.bc.ca/ (_o____o_) MGOFR 1.375
>
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