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Buell Forum » Old School Buell » Archives OSB 001 » Archive through August 10, 2007 » Suggestions on Pushrod tube sealing????? « Previous Next »

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Chasespeed
Posted on Saturday, August 04, 2007 - 10:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Okay, I THOUGHT I fixed the leak... took it for a ride last nite...

And you know what?

Its friggin worse..

Went outside today, and there was a puddle, good sized, under the bike...

Looked over the bike more thuroughly..

The underside of the tail section, the rear wheel, swing-arm, TIRE, cam cover, header, etc..

The ONLY place there is any oil coming from is the pushrod bases.. BOTH sets now...

This crap coulda got me hurt pretty bad, as I was "testing" on some exit and entrace ramps last night...

Okay, regardless...

I put some silicon in there, and gonna see if it seals...maybe just bad seal surface??

I am thinking about those bases from NRHS...


Anyway, is there anything anyone can think of??

I have actually been thinking that there might be a build-up of pressure in the crankcase, or the heads...

BUT, looking over the diagrams carefully, its not really likely...

The crankcase is vented through the rear of the cam cover...back to the oil tank...

the heads, well, they are vented through the breather system.

And FYI, I have moved the trany vent to the catch can, so, no, thats not what is covering the rear tire in oil...

Sorry for the long post, BUT, this is really aggravating me to a point that you wouldnt believe right now....

Chase
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Buellgekk
Posted on Saturday, August 04, 2007 - 10:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I believe the crankcase vent IS the headsvent.

My guess is, install those NRHS bases with new seals (place those rubbers well, it's nervebreaking!) and the problem is over.
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Chasespeed
Posted on Sunday, August 05, 2007 - 01:16 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Well, silicon didnt hold... leak is worse...

I dont get it...

Old dried up seals...no leak...

New seals and o-ring... losing a LOT of oil...

On the flip side, put new rubber on tonight...

Chase
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Warlizard
Posted on Sunday, August 05, 2007 - 11:44 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Iron Machine sells the Zipper's collapsible covers that include billet bases. They are about 150.00$ Personally, I don't trust the collapsibles and would go w/ just the billet bases for about 40.00$ My2c
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Warlizard
Posted on Sunday, August 05, 2007 - 11:48 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Correction; Steel Thunder has the Zippers, not IM.
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Rick_a
Posted on Sunday, August 05, 2007 - 12:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The only way to fix a pushrod tube leak is to replace the seals and assemble carefully.

Sometimes the lower retainers can get warped.

The billet bases are a good step forward. NRHS has them as well. Warlizard is right about collapsable tubes...only use those is you have collapsable/adjustable pushrods.

The rear of the camcover vents the oil tank only. The crankcase vents through the cylinder oil passages and pushrod tubes into the rocker boxes, through the umbrella valves and out the breathers.

Only 1990 prior XL's have a gearcase crank breather.
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Spiderman
Posted on Sunday, August 05, 2007 - 12:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

A lot of times the lower seal tends to get pinched and pulled out and not allowed to seal.

Some times using a different seal on the same base works.

Best thing to do is check the back (the side between the cyl and base) to make sure the seal didn't get pulled out by pinching.

SOme times it takes a few times.

I push down as had as I can with my left, making sure it is lined up then tighten the bolt with my right. The use a bright flash light to make sure it didn't get pinched out.

Good luck.
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Chasespeed
Posted on Sunday, August 05, 2007 - 12:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I am wondering if my retainers are warped....

These are new seals, and o-rings...

I have tried several times, several ways to get these seals to... well, seal...

I will take the header back off, and take another crack at it, with some light...

SO..

one more question...

Should I leave the seals a little high on the tube, and allow the retainer move it into place?

OR,

Put the seal on the bottom of the tube, and pull the retainer down, and tighten carefully?

Chase
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Spiderman
Posted on Sunday, August 05, 2007 - 03:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

}Put the seal on the bottom of the tube, and pull the retainer down, and tighten carefully?



That one.

And try to put some preasure to the oposite side of the bolt to keep things even...
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Chasespeed
Posted on Monday, August 06, 2007 - 08:53 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thats how I have been doing it. So, I guess my retainers are maybe bent...

I tried jacking with it some more last night...

and still no joy...

Oh well, I will get another set of new seals, and those NRHS bases....

Chase
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Bluzm2
Posted on Wednesday, August 08, 2007 - 05:30 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Chase,
I have a couple of sets of stock clamps.
Shoot me your addy if you want a set.
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Chasespeed
Posted on Wednesday, August 08, 2007 - 07:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sorry, should have updated this...

I have a set of the NRHS Billet bases coming, should be here friday...

I will promptly install them, and see if they leak...

Thanks though Bluz...

Chase
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Smoke
Posted on Thursday, August 09, 2007 - 05:51 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

i have had the best luck by seating the seals in the retainer dry, then lightly lubricating the pushrod tube and then sliding the base with oring down the tube and holding it flat on the top of the case and then tightening te bolt. with the nrhs set you need to pull the little locating pins off and then do both pushrods at the same time. the real key is to get everything flat against the lower case before tightening. it can be aggravating, but not as aggravating as a bad camcover gasket.
good luck,
tim
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Chasespeed
Posted on Thursday, August 09, 2007 - 11:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Didnt know about removing the locating pins... that will eliminate some problems right there.

Thanks Smoke...

I will tell ya though, my cam cover gasket leaked for over a year, almost 2 before I got around to dealing with it...

These pushrod seals... HA, i wont even start the bike..

I have oil cooked onto my ceramic coated header, and everything...

Oh well, the parts should be here tomorrow, and I will tear everything back apart tonight, and go be ready to roll....

Chase
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Chasespeed
Posted on Friday, August 10, 2007 - 05:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

NRHS kit did the trick....

Chase
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