EVO All Evo Model Discussion

Valve stem oil seals

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Old Apr 1, 2016 | 07:27 AM
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Default Valve stem oil seals

As some of you have read, the bike I inherited from my pops has been sat a while, anyway after riding her around a little, we have notice quite obviously what we suspected in that the valve stem oil seals are shot, leaking oil past them, the spark plugs I just swapped out were covered in oil and the rear cylinder exhaust port is blowing oil also,


I plan to get this done after my vacation in Florida at the end of april, but until then would you ride it? Or leave it parked up?


cheers
 
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Old Apr 1, 2016 | 07:40 AM
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I wouldn't ride it till it's fixed.
Send the heads to Scott at Hillside Cycle and he will fix you right up.
 
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Old Apr 1, 2016 | 09:30 AM
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Originally Posted by texashillcountry
I wouldn't ride it till it's fixed.
Send the heads to Scott at Hillside Cycle and he will fix you right up.
Dide surely by now you e realised Im from the little old U.k lol. Ha ha.

Thanks for the info boss, looks like it will be tucked away for a little longer then. Damm we just starting to get some sun too.

Suppose I'll get the oil seals and compression realises done at once then
 

Last edited by Dazzauk; Apr 1, 2016 at 09:32 AM.
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Old Apr 1, 2016 | 10:51 AM
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Originally Posted by Dazzauk
Dide surely by now you e realised Im from the little old U.k lol. Ha ha.

Thanks for the info boss, looks like it will be tucked away for a little longer then. Damm we just starting to get some sun too.

Suppose I'll get the oil seals and compression realises done at once then
What on earth do you need compression releases for?????????
Is there something about that motor you're not telling us???

UPS goes world wide,,just sayin'.
 
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Old Apr 1, 2016 | 10:57 AM
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Originally Posted by Dazzauk
As some of you have read, the bike I inherited from my pops has been sat a while, anyway after riding her around a little, we have notice quite obviously what we suspected in that the valve stem oil seals are shot, leaking oil past them, the spark plugs I just swapped out were covered in oil and the rear cylinder exhaust port is blowing oil also,


I plan to get this done after my vacation in Florida at the end of april, but until then would you ride it? Or leave it parked up?


cheers
Sounds like more than valve stem seals to me.
 
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Old Apr 1, 2016 | 10:59 AM
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Originally Posted by texashillcountry
What on earth do you need compression releases for?????????
Is there something about that motor you're not telling us???

UPS goes world wide,,just sayin'.


hee heee he


the motor is a 97 evolution with:


stage 3 Dynojet
Mikuni HSR 42mm CARB
High lift cams
High compression pistons
ported and flowed head
uprated jets in the carb to run smoothly Vance and Hines PRO PIPE HS
accell 8.8m spark plug wires
Iridium plugs

If I remember anything else ill let you know
 

Last edited by Dazzauk; Apr 1, 2016 at 11:08 AM.
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Old Apr 1, 2016 | 11:49 AM
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Originally Posted by Dazzauk
hee heee he


the motor is a 97 evolution with:


stage 3 Dynojet
Mikuni HSR 42mm CARB
High lift cams
High compression pistons
ported and flowed head
uprated jets in the carb to run smoothly Vance and Hines PRO PIPE HS
accell 8.8m spark plug wires
Iridium plugs

If I remember anything else ill let you know
You don't need compression releases for any of that unless you are over 11-1 on your pistons.
 
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Old Apr 1, 2016 | 11:50 AM
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Originally Posted by 89FLHTC
Sounds like more than valve stem seals to me.
Nah dad said they've gone before. Engine was rebuilt 2000 miles ago.

Obviously oils leaking through the oil seals hence its in places it shouldn't be
 
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Old Apr 1, 2016 | 11:55 AM
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Originally Posted by Dazzauk
Nah dad said they've gone before. Engine was rebuilt 2000 miles ago.

Obviously oils leaking through the oil seals hence its in places it shouldn't be
Sounds like somebody didn't fix it right if all you got out of it was 2k miles.
I thought y'all used kilometers over there..

I still recommend Scott but who ever you have rebuild it I like the behive springs....

Just a thought.

Oh and you don't have cams in there.
EVO's only have one cam.
 
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Old Apr 1, 2016 | 11:57 AM
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Originally Posted by Dazzauk
Nah dad said they've gone before. Engine was rebuilt 2000 miles ago.

Obviously oils leaking through the oil seals hence its in places it shouldn't be
Assuming they were replaced during the rebuild, they sure didn't last long.
 
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