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valve cover

  • Thread starter Thread starter catbed
  • Start date Start date
C

catbed

Guest
good news! well not really. i found out where the leak was coming from.
2312554989_f524907d24.jpg


inside
2312556471_435cc23f3a.jpg


bolt hole
2312557975_3a7fda135d.jpg


i can only get this welded right? and then i would have to repaint the cover? can i go the el-cheapo route and use jb weld?
 
I have used JB Weld successfully on valve covers before. Just be sure to clean it better than you would if you wanted to eat off of it, then clean it again. Carb cleaner spray and alcohol both work well to clean all the oil out of the crack. If you have room on the inside, you can lay a bead at least 1/4" either side of the crack, then use a hair dryer to heat it up. It will soften the JB so it will flow into the irregularities of the crack giving a better seal.

.
 
Steve said:
I have used JB Weld successfully on valve covers before. Just be sure to clean it better than you would if you wanted to eat off of it, then clean it again. Carb cleaner spray and alcohol both work well to clean all the oil out of the crack. If you have room on the inside, you can lay a bead at least 1/4" either side of the crack, then use a hair dryer to heat it up. It will soften the JB so it will flow into the irregularities of the crack giving a better seal.

.
Click to expand...

And don't tighten it so much this time, JB will not be as strong as the original was.
 
JB Weld for temporary fix but hit ebay and get a new/used cover.
 
well i found somebody that will weld it. hes gonna do it tomorrow(friday) and ill keep you guys updated as to what is going on.
 
I have a spare valve cover for my 750.. shop put on old one from the head I bought against my wish's *did not listen*... I am polishing my old one but once the other comes off I will have a spare in the next few weeks. Say the word if compatible and we can arrange delievery for you.
 
Kcwiro said:
I have a spare valve cover for my 750.. shop put on old one from the head I bought against my wish's *did not listen*... I am polishing my old one but once the other comes off I will have a spare in the next few weeks. Say the word if compatible and we can arrange delievery for you.
Click to expand...

They're different -- the 19 bolt valve cover on the 82-83 GS850 is unique.

I had a spare, but I sold it to another GSR member about a year ago...
 
after filing:
2317071123_3ea9423ce3.jpg

2317880728_76d08191ca.jpg

2317881764_26b6f45ce9.jpg



one more question. what can i use to clean the gasket mating surface on the head? can i use rubbing alcohol? acetone? denatured alcohol?
 
catbed said:
one more question. what can i use to clean the gasket mating surface on the head? can i use rubbing alcohol? acetone? denatured alcohol?
Click to expand...

Any of those, carb cleaner, starting fluid, kerosene, just about any solvent will do. There is a product called "Gasket Remover" that works pretty well, especially if most of the paper is gone. It's basically paint remover in a spray can.

Just don't gouge the surface up.
 
by clean the gasket mating head, i meant of oil, not old gaskets. sorry for not mentioning that before.:)
 
I have alwyas used light petroleum based clenaer varsol etc to get the bulk of heavy oil then gone to alcohol based cleaners

the latter removes all oil so you get a very clean mating surface
i soak paper towels in alcohol based brake cleaner to do it

use several pieces to sucessively remove all reidue

I never get leaks after doing this

that guy did a sweet job of fixing the crack btw
 
To get the RealGasket into place without getting too much oil on it, roll it up in a couple of paper shop towels, then unroll the towels on top of the engine and get the gasket arranged the way you want while the towels are still between the engine and the gasket.

Then tear the paper towels and pull them out in pieces, allowing the gasket to drop into place.

You don't need to get too obsessive about keeping everything surgically clean. You'll inevitably get a little oil on the gasket, but just wipe it off and you'll be OK. No need to start over.

I spray a little brake cleaner on a paper towel and use that to wipe off the gasket surface before placing the gasket. Just don't get any brake cleaner or any solvent on the RealGasket.

Several years ago, I quickly cleaned a RealGasket using mineral spirits, and it got... bigger. It was the same RealGasket, only two inches wider.

I said a few bad words, ordered another one, and stashed away the original. Last year, a friend's GS850 needed a valve cover gasket. I pulled out the old RealGasket just for giggles and found that it had gone back to normal! It's still on his bike, and has been through three or four valve checks with no problems.

Nowadays, I clean RealGaskets in the sink with warm water and dish soap, then pat dry with paper towels.
 
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