• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

Cracked case at oil plug

  • Thread starter Thread starter SteveN
  • Start date Start date
S

SteveN

Guest
My 425 has developed a leak at the drain plug. At first I thought it was loose and leaking, so I put a wrench on it, and it was tight. I cleaned off the oil, and at the back of the hole in the case, there's a small crack. I tried putting on form-a-gasket on the plug, but the crack must go higher than the plug goes in. Any ideas how I can fix it? JB Weld? threaded insert,(although I don't know if there's enough material there to do that), more silicon?
 
Good thing it's only the pan, but finding a replacement may take awhile. If you have an alternative source of transportation, you can have the crank in the pan TIG welded, then re-thread the drain hole. I think the oil drain plug has M14X1.25 threads, you could measure the bolt to be sure.

On my GS450, the oil drain plug has the same thread count as the spark plugs... you may be able to use a spark plug tap to re-thread the hole.
 
Thanks for the help. I don't believe the twins have a separate oil pan. The oil plug is in the rear bottom of the crankcase. Has anyone fixed a cracked case?
 
Thanks for the help. I don't believe the twins have a separate oil pan. The oil plug is in the rear bottom of the crankcase. Has anyone fixed a cracked case?
 
I checked the microfiche for the '79 gs425, and it does show a seperate oil pan. However, there is no longer a part number or price listed, so it's been discontinued.
 
I think I'd try JB Weld. This is exactly the sort of thing they advertise it being used for. It'll handle the oil and heat.

If you're careful and don't slather it all over willy-nilly so it breaks loose and clogs something, you've really got nothing to loose. And it's easy...

The key will be to get the surfaces clean so it bonds.

The only question I'd have is will the drain plug spread the crack a bit when it's tightened (probably). You might want to apply the JB Weld, then insert and tighten the plug while it's still wet, if you can do so without bonding the plug to the pan permanently (maybe spray the plug with WD-40 first?).
 
Last edited:
Parts is parts

Parts is parts

Mr. SteveN,

I just did a quick check on ebay and found a few used parts that should work for you. Hope this helps.

Thank you for your indulgence,

BassCliff
 
Just curious, did you solve the problem?
I think my bike has a crack in the same spot. There's what looks like JB Weld around the oil plug and I'm due for an oil change...
Cheers
 
You must log in or register to reply here.
Back
Top