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General Category >> Rubber Side Down! >> Inserts or Needles on the Conn rod to Crank ?
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Message started by Routy on 11/25/10 at 06:25:46

Title: Inserts or Needles on the Conn rod to Crank ?
Post by Routy on 11/25/10 at 06:25:46

Ok ok, I don't have a book ! But when I have a good motorcycle, and a good forum, maybe I don't need one ? :)

Anyway, is the conn rod and crank an assembly.....w/ needle bearings?
Or is the conn rod removeable,.....maybe w/ an insert bearing.

No,.....my conn rod is not clattering,.......I'm just concerned about what mite be happening while some here are cranking this thumper over w/ out any oil in it,.......for the sole purpose of trying to get a touch more oil out of the engine. If its needle, I wouldn't be so concerned, if it was insert, I'd be very concerned, and would never do it.

Title: Re: Inserts or Needles on the Conn rod to Crank ?
Post by thumperclone on 11/25/10 at 07:59:32

SSM doesnt show
maybe the parts fische in the tech section

Title: Re: Inserts or Needles on the Conn rod to Crank ?
Post by verslagen1 on 11/25/10 at 10:24:43

When you don't have a book, look for fische.

http://www.boulevardsuzuki.com/fiche_section_detail.asp

anyhow, it shows needle bearings.

Title: Re: Inserts or Needles on the Conn rod to Crank ?
Post by Phelonius on 11/25/10 at 12:02:10

The factory inserted needle bearings.

Phelonius

Title: Re: Inserts or Needles on the Conn rod to Crank ?
Post by RidgeRunner13 on 11/25/10 at 12:46:10

Which is why it can get away with such low oil pressure.

Too bad they didn't follow through to the cam bearings.

Wonder if there would be any way to fit needle bearings to the cam???

Maybe machine the cam brng. surfaces down, bore out the head for the races???

Hhhhmmmmmmm???? 8-)

Title: Re: Inserts or Needles on the Conn rod to Crank ?
Post by Routy on 11/25/10 at 12:55:50

Thanks.
It has needle bearings, so I'd guess it won't kill it to run w/o oil for a few seconds,.....but there is lots a pressure on those little needles when it hits compression !
I'm surprised, the crank (3 pc) and the conn rod (1 pc) and all bearings are sold as an assy, but the individual parts are too. But I'd bet the shops are not capable of disassembling or assembling that crankshaft. It must all be a press fit proceedure at the factory,....I'd be curious.

Title: Re: Inserts or Needles on the Conn rod to Crank ?
Post by verslagen1 on 11/25/10 at 15:02:21

7E45484B497E594242495E1D1F2C0 wrote:

Too bad they didn't follow through to the cam bearings.

Wonder if there would be any way to fit needle bearings to the cam???

Maybe machine the cam brng. surfaces down, bore out the head for the races???

Hhhhmmmmmmm???? 8-)

You could do that for the end bearings, but the center one, not possible. Best you could do would be to fit a set of bronze bushing halves. Which would go a long way to repairing most of these.