Proper jetting for Micron exhausts

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Bare
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Re: Proper jetting for Micron exhausts

#16 Post by Bare » Thu May 18, 2017 2:14 pm

IF that's the intent... Just weld the sliders together. NO leaks.

LC Cnd
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Re: Proper jetting for Micron exhausts

#17 Post by LC Cnd » Mon May 22, 2017 2:15 pm

Obtained some Permatex to see how it goes. One issue I had was I could not thread the bolts onto the studs with the metal o-ring gaskets in place. As an experiment, took out the crush rings gaskets and made seals out of gaskets paper. Read, back in the '80's, lads use to make them out of cereal boxes soaked in 2-stroke oil as a quick fix. Interestingly the pipe heads fit neatly into the exhaust port and tightened down the bolts without an issue - not sure if this is proper but it works. Though the Microns are tight, both pipes have some lateral movement at the flange joint - suspect thats from years of wear and the need for gasket sealer.
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2smoke
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Re: Proper jetting for Micron exhausts

#18 Post by 2smoke » Mon May 22, 2017 9:36 pm

Did your stock pipes fit with the metal crush rings?
I know they supercede the original 4L0 exhaust gaskets but they are different...
Colin
79 RD400F Daytona Special
81 RD350LC
89 TDR250
75 Kawasaki H1 500
77 Can-am Tnt250

LC Cnd
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Re: Proper jetting for Micron exhausts

#19 Post by LC Cnd » Tue May 23, 2017 12:11 am

Yes Colin the stock spanies did come with the metal rings and fit well. That why I was a bit confused with the Microns.

Update: the copper petmatex sealed the deal after the fire up. No drips to date.

LC Cnd
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Re: Proper jetting for Micron exhausts

#20 Post by LC Cnd » Thu May 25, 2017 1:04 am

Update: the copper petmatex sealed the deal after the fire up. No drips to date. Oddly, one Micron pipe (left) blows more smoke than right. Suspect its the air screw adjustment.

RuZty
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Re: Proper jetting for Micron exhausts

#21 Post by RuZty » Thu May 25, 2017 2:13 am

For what it's worth I've used Ultra Copper on more challenging applications than exhaust flanges and it has always setup overnight, sealed well and stayed pliable. On my SpecII pipes it still gives them some freedom of movement without having black spooge everywhere.

Bare
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Re: Proper jetting for Micron exhausts

#22 Post by Bare » Fri May 26, 2017 6:14 pm

Interesting .. My engine must be jetted far richer than yours .
My permatex orange turned to molasses and dripped out in V short time. Twice!
Silly-cone orange is not Gasoline tolerant.
Of small note: the resultant Goop from the slider joint is surprisingly small.
despite zero sealant Goo and easily is wiped up in seconds.
Those slider joints are ...intended.. to Slide in /out under back pressure variances.
Springs aren't there simply as decoration.

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