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Buell Motorcycle Forum » Quick Board Archives » Archive through March 06, 2004 » Oil Pump Drive and Tensioner Shoe Inspection... « Previous Next »

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Djkaplan
Posted on Thursday, February 19, 2004 - 06:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

...on my 2k M2 with 19,000 miles. I've been worried about these parts ever since reading about their failures (sometimes catastrophic) on the BadWeb. I've had a pretty good run of luck with my bike, but I was really expecting the worst when I finally took the oil pump and primary cover off. Much to my surprise, everything looks fine.

Is there an established reason why some owners have had premature wear on the bevel gear that drives the oil pump? What ever it is, it is not happening to mine. For good reason, I expected there to be chunks of metal and all sorts of carnage inside the primary and cam-case.

Oh, well. Move along now..., nothing to see here.
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Bluzm2
Posted on Thursday, February 19, 2004 - 09:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

DJ,
You did change out the tensioner right?
If it was the old style and wasn't cracked, it will..
$15 worth of CHEAP insurance.

JMHO

Brad
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M2me
Posted on Thursday, February 19, 2004 - 09:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It's my opinion that the oil pump drive gear problem is pretty rare. The reason you hear about it loud and clear is because it is catastrophic. I plan on just riding my M2 and not worrying about it. I'm betting that I won't have a problem and won't win the lottery either.

The tensioner problem is well documented and, as Brad pointed out, is cheap to fix if you still have the old one.
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Reepicheep
Posted on Friday, February 20, 2004 - 07:11 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Djk... Were there any signs of wear on the drive gear? Was it grooved at all? You were looking up into the engine into the cam chamber, right? Glad everything looked good, thats always nice.

M2me, it's not a big deal to check it during an oil change, just a gasket, some teflon tape, some cable ties, and a couple bolts. Maybe half an hour job. It's not a big deal to do once every 15k miles or so.
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Djkaplan
Posted on Friday, February 20, 2004 - 11:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Bluz,

I wasn't sure what the difference in the updated tensioner was, so I just buttoned the whole thing up and filled it with oil. I just did a search and saw a photo of the beefier shoe - I know for a fact I do not have one. DOH! I'll be stopping by the HD dealer to order one today (not in stock, of course). I lost my warm fuzzies and I'm all paranoid about the shoe again. Gee..., thanks.

Reep,

Near as I can tell there was no wear on the bevel gear at all. It's kind of hard to see, but I got a pretty good look at it with one eye and a flashlight. Of course, I didn't use teflon tape when I put the hose back on, so now that's got me worried.

I feel worse now.

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M1combat
Posted on Friday, February 20, 2004 - 11:49 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Yeah, you'll probably need the tape. It will seep at the least. Has the bike had synthetic oil in it most of it's life? If so, I would imagine that would extend the life of the gear considerably.
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M1combat
Posted on Friday, February 20, 2004 - 11:50 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Oh, remember to wrap the tape so that it is tensioned by the threads going in, and don't use too much.
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Bluzm2
Posted on Friday, February 20, 2004 - 11:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Dan,
Just out of curiousity, which primary gasket did you use?
The new metal one or the old style fiber?
Just wondering.
BTW, sorry to provide worry fodder but I've seen what happens when one of those suckers breaks.

Also, if it's not leaking without teflon tape, dont' worry about it!
No blood, no foul....

Brad

Brad
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Djkaplan
Posted on Friday, February 20, 2004 - 12:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

M1,

I broke the engine in with the Harley dino oil and started using Mobil 1 after that.

Bluz,

The old fiber gasket stayed intact when I pulled the primary off, so I just re-used it. Regardless of how inadvisable this move was, I'll be replacing it anyway when I put the heavier shoe in. Is the metal gasket the way to go on this? I've had no oil seepage at all (well, up to now) with the original gasket, but if the metal is better, that's what I'll use.
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99buellx1
Posted on Friday, February 20, 2004 - 12:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Here's my chain tensioner. As you can see, it was working just fine, but broken. It was only a matter of time when it would have come apart. If you have the old one, replace it. It is an inexpensive and simple change. Part number 39975-90A



Craig
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Newfie_buell
Posted on Friday, February 20, 2004 - 12:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I got the new one in my garage waiting to be installed.

We still got about 4 feet of snow and ice on the ground so it will be at least till Late March before I see the road.

However, I do have 40,000km on the original tensioner and its near the end of its adjustment.
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Blackbelt
Posted on Friday, February 20, 2004 - 02:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

craig... is that the origonal or the updated tensioner?

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Newfie_buell
Posted on Friday, February 20, 2004 - 03:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

The original,

The updated one is much beefier (if that is even a word)
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Reepicheep
Posted on Friday, February 20, 2004 - 03:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

The metal gasket is awsome. I can't imagine you will not develop a leak reusing the old paper gasket. Heck, half the time I end up with a leak using NEW paper gaskets. The metal gasket is FAR FAR easier to install, and a much more reliable install. Retorque your primary cover bolts after a couple heat cycles.

Glad your pinion gear was not worn. It's obvious when you have it... Let me dig out a shot from the knowledge vault (I love my Nikon Coolpix 950!)...

http://www.badweatherbikers.com/cgibin/discus/show.cgi?tpc=3842&post=156011#POST 156011

If it was wearing, you would know it! Thats the view you get with the oil pump pulled from the bike. I tried to reuse the oil pump paper gasket, and got a leak : ( Not sure about the teflon tape, you might get lucky as there might be bits of old teflon still in there and doing the job.

Good excuse to drop in some mobil 1 gear oil as well. Day and night difference in shifting!

edited by reepicheep on February 20, 2004
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Bluzm2
Posted on Friday, February 20, 2004 - 04:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Absolutely what Bill said.
If the dealer tries to sell you the paper gasket either refuse it or have him cut the price to 1/4th list as the paper ones have been discontinued. You should be able to get out of the shop for about $25 total.
Stop at the car parts store and pick up the Mobile 1.

I switched to Mobil 1 75/90, shifting was noticibly smoother.

Brad
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Tripp
Posted on Friday, February 20, 2004 - 09:51 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

i think i paid 27 last year, way better gasket easier install too, i just posted picks in kv of my busted shoe from last year, ugly, my motor blew a couple of months later
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