Over exhaust restoration

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Rane850
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Over exhaust restoration

Post by Rane850 » Tue Sep 02, 2014 7:07 am

I managed to have full Over racing exhaust to my collection. It is from year 96-97 and 17 years of use has left some markings in it. I will clean, polish and repack it but I also will try it before winter in my blue 96 and do rest of work during dark months.
Those attachment flanges (to cyl head) have been bent for overtightening. Who remembers where are drawings for those two piece clamps?
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cobbadiggabuddyblooo
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Re: Over exhaust restoration

Post by cobbadiggabuddyblooo » Tue Sep 02, 2014 12:05 pm

The 2 piece ones from the kawasaki models wont fit because the header diameter is different so dont cut them off yet... :wink:
laughter is the best medicine

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emway
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Re: Over exhaust restoration

Post by emway » Tue Sep 02, 2014 12:30 pm

Don't know if i can help you but here is the drawing for an original exhaust.

Image
Image

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Rane850
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Re: Over exhaust restoration

Post by Rane850 » Tue Sep 02, 2014 7:10 pm

OK, thank you for drawing, I will check dimensions with Over pipes. I now straighened those flanges with big hammer and wisebench (temporarily solution)
TRX850 bubum bubum - 96 and 98
XT500 -80 bum bum bum

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Rane850
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Re: Over exhaust restoration

Post by Rane850 » Mon Sep 08, 2014 6:39 am

I put this Over set to my bike and made very short test ride. When I started in garage it did not sound so loud, note is just what needed, deep and low. But when I turned bike to street I realized that this is way too loud. I did not have time to go to unmanned roads, just a small burst in motorway. Engine felt bit crispier even in lower rpm's what I wonder since those primary pipes are so much bigger than originals (od 38 mm vs 43 mm).
I will make my own db killers to silencers. Maybe dia 40mm, lenght 15 cm straight pipes like I have now in Micron cans.
I must try to straighten those clamps in hydraulic press since there is no room for thicker plates without changing longer studs.

By the way, are there spares available for Over in Europe?
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TRX850 bubum bubum - 96 and 98
XT500 -80 bum bum bum

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Rane850
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Re: Over exhaust restoration

Post by Rane850 » Tue Sep 09, 2014 6:28 am

This hanger does not look very pro. In most Over's there is offset hanger so you dont need that 1" spacer. Does anybody know where to get tough clamps, dia is 115mm. Those "alibaba"-hangers seems to be 0,5 mm thick, so not good.
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TRX850 bubum bubum - 96 and 98
XT500 -80 bum bum bum

Rich
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Re: Over exhaust restoration

Post by Rich » Tue Sep 09, 2014 8:15 pm

http://www.pjengineering.co.uk/categories.php?cat=9

they should suffice for your needs, but the bracket straps are not hard to make, I have done them from stainless and alloy before.

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Rane850
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Re: Over exhaust restoration

Post by Rane850 » Mon Sep 29, 2014 12:18 pm

Here it is in pieces, 50% of wool has burnt away from first 20 cm, thats why there are burning marks in outside core.
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TRX850 bubum bubum - 96 and 98
XT500 -80 bum bum bum

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Rane850
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Re: Over exhaust restoration

Post by Rane850 » Mon Jan 19, 2015 8:30 am

Over Japan kindly answered to my parts inquiry, but those bits will become too expensive to get from Japan. So carbon tubes has been ordered from PJ Engineering and some sst- strips from local workshop. DIY :D
TRX850 bubum bubum - 96 and 98
XT500 -80 bum bum bum

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Rane850
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Re: Over exhaust restoration

Post by Rane850 » Mon Apr 27, 2015 9:46 am

Over restoration has been completed, core tubes and rivet bands are new, everything else is cleaned and polished. At the outlets i welded 15 cm long 35mm tubes for silencing. Now decibels are at acceptable level.
And I also put silencers to wrong sides :shock:
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TRX850 bubum bubum - 96 and 98
XT500 -80 bum bum bum

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M.V.
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Re: Over exhaust restoration

Post by M.V. » Tue Apr 28, 2015 3:10 am

Looks good mate, good job! I need to do that to my Omrae's soon...

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