[Mg-mmm] KN0389 gearbox, J2 rear housing

[spook01@comcast.net]

Well, Since we're on the subject....who can rebuild my m type 3 speed? 
Ray 

Sent from my Verizon Wireless Phone

----- Reply message -----
From: "BOB GRUNAU" <grunau.garage at sympatico.ca>
Date: Sun, Feb 6, 2011 11:09
Subject: [Mg-mmm] KN0389 gearbox, J2 rear housing
To: <mg-mmm at autox.team.net>

Hi Guys,
Pretty quiet on the NAMMM scene so a few questions:

1-I have KN0389 gearbox apart and most of it is in excellent "as new "
condition. I am replacing the ball bearings. These are SKF6207-1RS front and
R&M MJ7/8 rear. No problem buying the front metric bearing. However the rear
MJ7/8" inch bearing is still available from some suppliers , but SKF say
none in North America and not going to import anymore. So anyone planning to
rebuild the Wolsely MMM gearbox should source the rear ball bearing early.
SKF number is RMS7.

2-The odometer gears in KN0389 gearbox are stripped and I need a new gear on
the mainshaft and new pinion to drive the cable. The numbers are 5/12, 5
teeth on the mainshaft and 12 on the pinion. I understand these are the same
gears as in the N Type cars. P Type cars use 4/10 gears, and I will install
this set if I can find a pair.
Anybody have either 5/12 or 4/10 speedo/odometer gears for sale?? THanks.

3-I have a J2 new block and am trying to source a new rear engine housing
the has the 'EARS " and bolts onto the block with 6 bolts. I think I have a
line on an MG M Type housing. Can anybody confirm the M housing is the same
as J2? At first glance, by photos, they appear the same.

Thanks from snowy Canada for any advice and help.
Best regards, Bob
Bob Grunau
150 Pinewood Trail
Mississauga, Ontario
Canada, L5G-2L1
905-274-4136
grunau.garage at sympatico.ca
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