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Oil pump gaskets

teazer
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Post by teazer » Tue Oct 26, 2010 12:08 am

I'm sure I put away a couple of NOS chains somewhere. Sounds like it's time to dig them out and sell them.

I got into racing when there were Honda dealers dumping their old stuff and I used to be able to buy things in packs of 10 (gaskets) at heavy discounts. I even managed to get a copy of Laurie Fox's old parts lists and ordered everything that I could afford or needed including a new set of CL pipes - all long since used or sold to support the racing habit.

jerry
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Post by jerry » Tue Oct 26, 2010 12:29 am

Young Laurie is still going. Saw him at MacPark at the beginning of the year. Had quite a long talk. Jerry

LOUD MOUSE
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Post by LOUD MOUSE » Tue Oct 26, 2010 5:59 am

Lots of AM gasket sets were made way back.
HONDA sold complete gasket sets and Top End Sets as did the AM company's. ...............lm

Snakeoil wrote:Thanks guys. That info about all the gaskets being made from the same material is good to know. Unfortunately, since I'm just getting into this bike, I have no new gaskets to measure.

I did find a piece of the B pump gasket that had both compressed and uncompressed areas. It appears that the material is 0.032 material and compressed down to 0.020" as others have stated here.

Regarding gaskets sets. I've found sets without the oil pump gaskets (I too, wonder why they are not included) and with. Price without is $24.00 and with 49.00. Interesting considering new OEM pump gaskets are $3.00 each.

Thanks and regards,
Rob

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Snakeoil
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Post by Snakeoil » Wed Nov 03, 2010 6:44 pm

Thought I should close the loop on this for future folks doing searches on the subject. Today, I took out the two NOS gaskets I got from Western Hills. Both measure 0.020 inch or 0.5MM thick. Both are also marked ASBESTOS, which I have not seen in many years. I suspect the gaskets I measured that were removed from my bike were aftermarket since they measured 0.031 where they were uncompressed.

Looking over these gaskets, I am doubtful they would compress much. They are much stiffer than gasket material I'm accustomed to seeing these days.

Guess, I'll use only one NOS on top of the screen and cut one for the bottom plate.

That primary idler gear arrangement is very neat. Are these gearsets made by somebody in the racing parts business or do you have them made up specifically for your engines?

regards,
Rob

jerry
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Post by jerry » Wed Nov 03, 2010 8:37 pm

Dont know who did gear primary drive with idler conversion in photo but it seems to me that the idler should be above crank centreline and also idler gear carrier appears not to be very robust. I apologise up front in case I offend with my comments. Jerry

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davomoto
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Post by davomoto » Thu Nov 04, 2010 10:07 am

Jerry, that would be Jensen's engine in the pic. it's a work in progress, and he too realizes that it isn't robust enough to work.

Davo
davomoto
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