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Archive through July 07, 2009Gowindward30 07-07-09  10:39 am
         

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Oldog
Posted on Tuesday, July 07, 2009 - 12:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

OUCH!
BAD STUFF!

James Ramsey and I discussed this, that is ugly!

I wonder what happened first?
mount break or bolt?

My "guess" is that the left arm broke first and overloaded the right bolt

however notice that washer pad on the right side showes uneven contact ( see the spot on the mount ~ 5:00 )
could have the clamp load been lost and then broken the right bolt, which overloaded the mount?

hurrumph!
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Sloppy
Posted on Tuesday, July 07, 2009 - 12:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

To fix the problem only takes about $150.

A -79D isolator, 1/2" reamer and a drill.

Problem solved... : )

If anyone would like they can go ahead and startup their own MC or parts company and design a better mouse trap. That's the beauty of Capitalism - you have a CHOICE.

What, no takers? If Eric took the risk then why not you? Rock bottom interest rates, high unemployment, little competition; now is the time if you're interested in starting a business...
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Mmmi_grad
Posted on Tuesday, July 07, 2009 - 12:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Have sloppy come repair it!
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Sloppy
Posted on Tuesday, July 07, 2009 - 01:11 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Actually my 7 year old will do it. No joke. It's really not that hard...
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Dpg
Posted on Tuesday, July 07, 2009 - 01:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Thanks Oldog,

I picked up my M2 about three years ago with 8K miles on it. Haven't had any issues with it until the broken bolts. I've reviewed the older threads on the isolator/bolts and think I understand the history now. I'm guess that my left side bolt fractured first and I didn't notice and the increased load on the right side cause that one to fail too. My isolator didn't appear to have failed, so I've re-used it in lieu of the replacement (softer) I got from American Sport Bike. The DS isolator will probably be my choice if I need to do a replacement later on. I'm not that concerned about the vibes at the bars since I've been riding my modified 1990 Sportster since it's been new LOL!

Safe ride,

Gary in Oaktown
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Drhacknstine
Posted on Tuesday, July 07, 2009 - 02:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Inspected my 98 S3T today during the 10'000 service. It has torn along the rear of the sleeve. So its time to make the choice on a replacement mount.
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Jramsey
Posted on Tuesday, July 07, 2009 - 04:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

"It has torn along the rear of the sleeve."

Thanks for posting that info Dr.

Talking to Jim a few weeks ago I asked where his Iso's failed and he said the rear side, I told him that made sense because the the plate the Iso bolts to behind the steering head is not perpendicular to the cylinder head mount.(on my 2 bikes anyway)

This misalignment is really only noticeable when the 79D Iso is used because the 79D has the washer built in the top side and its easy to see that its not parallel with the mount when everything is cinched up tight, the rear of the Iso is compressed .060 more on my X1 and .090 on the S3 then the front steering head side which obviously stresses the rear side of the Iso than the front.
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Drhacknstine
Posted on Tuesday, July 07, 2009 - 04:29 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Yep. Thought the same thing my self. I can see the sleve is at an angle in the rubber. So what are the details of the 79D mount. Who sells it, how much is it. And by hogging out the sleeve, is it making it thinner to such and extent, that the sleeve is prone to crush or fracture.

(Message edited by Drhacknstine on July 07, 2009)
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Jramsey
Posted on Tuesday, July 07, 2009 - 04:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Dealer item #16207-79D Made for H-D Big twin,price jumped from last year $43.95 to $64.38 this spring.


Sleeve is approx. .145 thick, leaves plenty for drilling or reaming.

If possible do it in a lathe.
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Gowindward
Posted on Tuesday, July 07, 2009 - 05:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

My bike's failure happened while doing 80mph...well make that 79mph in the interstate. Went across a short bridge and the bump from going off blacktop onto bridge then back onto blacktop is all she wrote. The left side surface on the head is very clean. No abrading like it had been broken for a while or miles. One went then the other followed very quickly, and have no idea which was first. It did have a DS iso on it at the time and was only a few days old, but well over a 100o miles on it. We had been on a trip to Colorado and was heading home. I will say the bike was loaded about 20 to 25 pounds over max carry capacity...I had weighed everything when loading the bike including us in riding gear. Bike was on it's 4th isolator since I bought the bike last Sept. I think my going to the DS iso I just found the next weak link in the chain.

Good news is road it about a 1/4 mile after it broke to a rest stop and even at speed the failure was not scary or life threatening.
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Drhacknstine
Posted on Tuesday, July 07, 2009 - 06:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Humm where did i leave my brain, My bike is a March 99 S3T. The exam tells me the sleeve was attached fully, from top to bottom to the rubber. It has torn the rubber around sleeve away from the rubber mount to within a quarter of an inch or so from the top of the sleeve, the attachment is still good in a upside down tear drop shape on the front of the sleeve. My bike has the 911 bolts so I am not going to touch the head bracket assembly. So this mount http://www.narleychoppers.com/servlet/the-75225/Fr ont-Engine-Iso-Mount/Detail for $25.00 should do the trick
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Drhacknstine
Posted on Tuesday, July 07, 2009 - 06:42 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Has any one kept track of the "cure numbers" molded into the berry mounts. If it is a bad run of mounts this would sure make it easy to track. Mine is cure8898. but at $37.97 with shipping an around 10,000 miles before failure, I'll chalk it up like tires, replace and order the next one .
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5liter
Posted on Tuesday, July 07, 2009 - 08:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Where does one find the cure number?
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Psycrow
Posted on Tuesday, July 07, 2009 - 08:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

10,000 miles I wish... Mine lasted 2 tanks of gas... I cant afford to run the bike at that rate.

Psy
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Drhacknstine
Posted on Tuesday, July 07, 2009 - 09:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

The "CURE" or Batch number is found next to the BARRY branding and part number as you spin it around. CURE was faint and the numbers looked like pimples.
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5liter
Posted on Tuesday, July 07, 2009 - 09:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I'm going to have to get a magnifying glass for that. I see a "8" in a circle with the pimples around it, but these old eyes ain't seeing much else.
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Naustin
Posted on Sunday, July 12, 2009 - 01:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Well, at least this summer we know what the problem is: Defective factory parts - as I suspected all along. Last summer, I was alone in the wilderness on that conclusion and pulling my hair out.

My wife's blast is losing another one of the imitation 79b isolators. This is the 3rd failure, I think it has about 1000 miles on it. She is light and goes VERY easy on the bike being a new rider, too.

Going to try the 79d and drill it out, I guess.

I hope buell is planning to discontinue the blast. I wonder what they are coming with from the factory? Cheap knock-off 79Bs, or reamed out 79Ds? There's a question for Court!

(Message edited by naustin on July 12, 2009)

(Message edited by naustin on July 12, 2009)
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Buellistic
Posted on Sunday, July 12, 2009 - 01:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Naustin:

My 1997 S3T came with a -79B which went bad and up-dated to a -79C which is the same thing(-79C)if you buy a BLAST ISOLATOR ...

NO DEALER SHOULD BE SELLING -79B ISOLATORS BECAUSE THEY SHOULD HAVE UP-DATED THEIR PASTS TO THE -79C ISOLATOR ...

MAY THE LONG LASTING BUELL BE WITH YOU !!!
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