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Valve guide seals

  • Thread starter Thread starter adamchatum
  • Start date Start date
A

adamchatum

Guest
Hey guys, whats the best way to remove valve guide seals? Just grip em and yank? Trying to take them off my '79 GS750.
 
yeah, if this is the first time you are replacing them they are sure to be pretty hard and stiff.

I just snagged mine with some needle nose and yanked/wiggled them off.


edit: eek...i just used hard, stiff and yank all in one reply.

Nic
 
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Yep, just wiggle and pull real hard with a pliers, but they can be a bear to get off, the biggest problem is getting a good grip on them, it's an 8 beer job, pull a seal, have beer, pull a seal, have a beer.....the 16 valve guys get really sloshed.;)
 
Don't just grip it and yank at it, unless you want to risk breaking a valve guide clean off.
Use a sharp knife to score down the side of the seal and then peel it away with a pliers.
 
Guy said:
Don't just grip it and yank at it, unless you want to risk breaking a valve guide clean off.
Use a sharp knife to score down the side of the seal and then peel it away with a pliers.
Click to expand...

The stock seals have a metal cover on the outside. How do you suggest scoring them?
 
If you can twist them (get them spinning) you can tease them of with a bit of gentle rocking / twisting / pulling etc. If they won't turn, and it's rare when they won't, use a blowtorch to burn the rubber and then have another go.
 
Thanks for all the advise. I managed to pull em off with some needle nose pliers after getting them loose with combination pliers. Their on there good though. I think they were the original 32 year old seals. Found some brand new ones on ebay with 5% teflon for only $3 a pop. Can't go wrong.
 
I have always been afraid I'd screw up and score the valve guide trying to yank em off with pliers. What I've done is use a thin peice of wood (like a door jamb shim or something of that sort) and lay it on the edge of the head and then use a flat head or better still one of those plastic (or maybe delrin?) gasket scrapers to get under the edges of the seal and pry it up. I use the wood to prevent whatever tool from messing up the mating surface of the head and as a fulcrum. Works ok. They're still trixy sometimes.
 
Nessism said:
The stock seals have a metal cover on the outside. How do you suggest scoring them?
Click to expand...

Years ago I snapped a guide through heavy handedness and inexperience. That's how I do them now.
If the seals have metal cups you can sharpen an old wood chisel and tap it edgeways down the side to split it.
But I think it's a bad idea to just grip the seal and pull at it; the guides can be quite brittle and you could end up with a lot more work than you bargained for.
 
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