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Jun 14th, 2026
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Joined: May 2012
Posts: 1,796 Likes: 5
OP
Talk Morgan Enthusiast
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M3W bevel box
Here are some images I took after warming it up prior to changing the oil.
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Joined: Oct 2012
Posts: 6,538
Talk Morgan Sage
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Talk Morgan Sage
Joined: Oct 2012
Posts: 6,538 |
Great pics ...thanks...seems hot...but not too much?
Neil
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Joined: Oct 2012
Posts: 2,822 Likes: 155
Talk Morgan Expert
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Talk Morgan Expert
Joined: Oct 2012
Posts: 2,822 Likes: 155 |
Good clear thermo pics but think it will take a bit of cunning and effort to find out what is going on in the bevel box. Maybe setting it up on video or time lapse with the boot closed and taking it for a high speed run from near cold till it starts to howl would give an indication of whether the howl is directly related to temperature. Either that or just buy ear plugs in bulk! 
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Joined: May 2016
Posts: 541
Talk Morgan Regular
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Talk Morgan Regular
Joined: May 2016
Posts: 541 |
It would be nice if MMC would get going on this issue.
1998 +8
SS Sport tuned exhaust
2013 M3W
Stage ll motor kit
Cats removed
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Joined: Jun 2013
Posts: 1,461
Has a lot to Say!
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Has a lot to Say!
Joined: Jun 2013
Posts: 1,461 |
I had an amusing exchange of e-mails on this subject with Quaife Engineering, while writing my book. Well, I was amused though the other party became slightly huffy. Then I sent a photo of a long skid mark and the tone changed...
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Joined: Aug 2013
Posts: 1,562
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Aug 2013
Posts: 1,562 |
With thermocouples attached so I can see the temp real time while driving , I have seen it go over 110C , worryingly near the limit of many oils.
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Joined: Oct 2012
Posts: 6,538
Talk Morgan Sage
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Talk Morgan Sage
Joined: Oct 2012
Posts: 6,538 |
You were lucky Peter they would not talk to me at all!
Neil
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Joined: Apr 2008
Posts: 12,269 Likes: 324
Scruffy Oik Member of the Inner Circle
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Scruffy Oik Member of the Inner Circle
Joined: Apr 2008
Posts: 12,269 Likes: 324 |
I find this a bit mystifying, to be honest. 100C is clearly far too high for a running temperature, indeed I find 40C a bit concerning, there's no way a bevel drive should run so hot, is there? I can't see why they would run any hotter than a differential.
And yet Quaife are an extremely reputable engineering company with years and years of expertise in designing, developing, & producing gear systems, and bevel final drives have been around for donkey's years on motorcycles, so it's not like the concept hasn't been thoroughly worked out.
One can't help wondering if MMC wouldn't or couldn't afford to spend sufficient money to get a properly-developed design?
Tim H.
1986 4/4 VVTi Sport, 2002 LR Defender, 2022 Mini Cooper SE
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Joined: Jun 2013
Posts: 1,461
Has a lot to Say!
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Has a lot to Say!
Joined: Jun 2013
Posts: 1,461 |
You were lucky Peter they would not talk to me at all! I received a reply only after I sent an e-mail containing a proposed paragraph. The chap replied "...I would strongly urge you to check your findings with Morgan for factual accuracy before publishing content that could later be damaging to your reputation." My response to this, with skid mark photo attached, was: "To paraphrase Philip Marlowe, I’m not worried about my reputation; I’m not trying to sell it. Maybe you should be more concerned about maintaining your company’s good reputation, however."
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Joined: Nov 2013
Posts: 582
Talk Morgan Regular
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Talk Morgan Regular
Joined: Nov 2013
Posts: 582 |
Thanks Mr Dron--and yet after 4+ years NOTHING HAS HAPPENED
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