Volvo RWD 120-130 Forum

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M40/41 Buildup 120-130

posted by  onstottc on  Fri Jun 3 12:48 CST 2011
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last visit: Thu Oct 23 20:17 CST 2014
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I have taken apart three transmissions. Two had bad laygears. The roller bearing surfaces were galled, but the gears looked nice. Although I wont need to do it, I was wondering if it is possible to recondition the bearing surface by enlarging it and hardening? Another possibility would be a hardened sleeve of some sort?







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M40/41 Buildup 120-130

posted by  ooooo on  Thu Jun 9 16:17 CST 2011
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last visit: Sat Mar 15 23:32 CST 2014
[RELATED]

new shafts are available. Hiperformance or iroll








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M40/41 Buildup 120-130

posted by  onstottc on  Sat Jun 4 13:22 CST 2011
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last visit: Thu Oct 23 20:17 CST 2014
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I've got an m41 and two m40's apart. Since I don't have a decent d-type overdrive and the m40 in my car is on it's last legs (I can grab the pinion and jiggle the output shaft about 3/16 of an inch.) I'm building up an m40.

My m41 has the best reverse idler gear, but I don't want to mess it up trying to pull it out to swap into an m40 without the correct tool. I'm thinking about putting the M40 guts into the m41 case. Isnt the only difference between an m41 and an m40 case the height of the filler plug? I don't see how having a higher oil level in a 4 speed could hurt anything.







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M40/41 Buildup 120-130

posted by  walrus3 on  Sat Jun 4 18:18 CST 2011
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last visit: Mon Dec 2 14:20 CST 2013
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You should check the bolt pattern on the rear of the case. They MAY be different.
Of course the output shaft is much different also.








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M40/41 Buildup 120-130

uid 40935's pic
posted by  Goatman on  Fri Jun 3 13:38 CST 2011
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last visit: Sat Jul 26 20:30 CST 2014
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Hi,


Check out SKF wear sleeves


Goatman








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M40/41 Buildup 120-130

uid 5322's pic
posted by  alschnertz on  Sat Jun 4 04:20 CST 2011
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last visit: Fri Oct 24 10:32 CST 2014
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Aren't the sleeves you are referring to are only made to make up for the groove that is sometimes worn in at a seal interface?
I don't think "speedi-sleeves" are hardened and thus would not be appropriate for the layshaft.







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M40/41 Buildup 120-130

uid 40935's pic
posted by  Goatman on  Sun Jun 5 07:02 CST 2011
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last visit: Sat Jul 26 20:30 CST 2014
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Sorry,


I was thinking of this product:
http://www.skf.com/skf/productcatalogue/jsp/viewers/productTableViewer.jsp?presentationType=3&lang=en&tableName=1_5_9


Goatman








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M40/41 Buildup 120-130

posted by  onstottc on  Sat Jun 4 12:39 CST 2011
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last visit: Thu Oct 23 20:17 CST 2014
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My pinion could use one of these sleeves. There is a nice groove worn in at the oil seal.








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M40/41 Buildup 120-130

posted by  malloy1 on  Fri Jun 3 13:28 CST 2011
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last visit: Sun Oct 12 17:44 CST 2014
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If you're looking for a M41:

http://cgi.ebay.com/ebaymotors/Volvo-P1800-1800-E-ES-122-M41-Tranny-J-Type-Overdrive-_W0QQcmdZViewItemQQhashZitem19c5e95a56QQitemZ110694586966QQptZLHQ5fDefaultDomainQ5f100







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