Home Auctions Gallery Forum

honda305.com Forum

Vintage Honda Owners, Restorers, Riders and Admirers


Oil Leak

Kigsby
honda305.com Member
Posts: 207
Joined: Tue Oct 18, 2011 10:42 am
Location: Tampa, FL

Oil Leak

Post by Kigsby » Mon Dec 05, 2011 2:52 pm

I had to take the left crank case off because the chain had come off the oil rotor during an oil filter cleaning (long story, don't ask!) So I bought a new gasket (made a template) and even bought all new screws to replace the stripped ones (or soon to be stripped ones). I used some gasket adhesive, let it sit overnight, then filled her up with new oil. Now I have a very slight drip. I ran her around for awhile, came back tightened the screws slightly more (don't want to overtighten!) Still a drip. It was only about a teaspoon overnight. I'm brand spankin' new at all this so I know nothing about gaskets. Do they take a little while to seal? Should I get a different thicker gasket? Different material? More adhesive? Sealer instead/in addition to adhesive? I'm not real sure what the one I used was made of. It was a mint green color, very thin piece of paper and a light shine to it, so I assumed it was coated with something.

48lesco
honda305.com Member
Posts: 721
Joined: Tue Mar 06, 2007 1:45 pm
Location: Olmsted Twp, Ohio

Post by 48lesco » Mon Dec 05, 2011 4:41 pm

You shouldn't need any kind of sealer or adhesive. First, I would buy the Honda gasket. It may be a little pricey but its the right thickness and fits better than some of the ones in the aftermarket gasket kits. Next you have to make sure that both surfaces are flat, smooth, and free of any old gasket, sealer, adhesive, etc. If there are gouges from aggressive past gasket removals, you could try a little Hondabond or RTV at the gouge. Also check the cover for warping. I tighten all of the screws as tight as I can get them by hand, then give them a light shot with the hand impact. Shouldn't leak from the gasket at all...

I would also check to make sure its the gasket leaking. That side also leaks from the oil filter cover o-rings and the shifter seal.

Kigsby
honda305.com Member
Posts: 207
Joined: Tue Oct 18, 2011 10:42 am
Location: Tampa, FL

Post by Kigsby » Mon Dec 05, 2011 5:15 pm

Thanks for your help. I got 99% of the old gasket off, but I did notice some gouges. I didn't think they were deep enough to cause a problem (but maybe I'm wrong!) It was an aftermarket gasket $10 from Classic Honda Restoration. Before I order a Honda gasket I guess I should check the oil filter cover o-rings and the shifter seal. When I did the oil change, I do remember seeing any o ring in the inside of the rotor that fit in a groove all around the rotor. It looked like it was in good shape. Where is the shifter seal located?

KellieLyyne
honda305.com Member
Posts: 263
Joined: Tue Sep 01, 2009 7:36 pm
Location: Santa Rosa California

Post by KellieLyyne » Mon Dec 05, 2011 9:13 pm

Kigs, I think this picture will help. Are you talking about the shift shaft seal? It is #19 in this picture.

Image
IMG_8364 by bruceandkellie, on Flickr
Last edited by KellieLyyne on Mon Dec 05, 2011 11:35 pm, edited 1 time in total.

48lesco
honda305.com Member
Posts: 721
Joined: Tue Mar 06, 2007 1:45 pm
Location: Olmsted Twp, Ohio

Post by 48lesco » Mon Dec 05, 2011 11:04 pm

Mr Kigs, yes it is that one in the picture. If you don't have that parts manual, PM me an email address and I'll send you the pdf. If you haven't yet, I would replace that seal if you take the side cover off again. It's easy - just dig the old one out, and push a new one in. Make sure the shaft isn't all corroded where the seal rides. I think it's still available from Honda.

The o-ring inside the cap on the oil filter isn't a big deal, but sometimes the two on the round cover get fouled up. If you have a '66, that cover is different than the one pictured in the parts manual. That picture is of the early version. You'll have two large ones:

91309-700-010 (74.5x3) No longer available from Honda - Ohio Cycle has them
91303-PH8-010 (79.4x3.1) Available from Honda

And remember...

"If it's worth more than you spent to restore it, you didn't do it right" - Jay Leno

KellieLyyne
honda305.com Member
Posts: 263
Joined: Tue Sep 01, 2009 7:36 pm
Location: Santa Rosa California

Post by KellieLyyne » Mon Dec 05, 2011 11:34 pm

Hi 48, Kigsby is female, and she has a 1962 Dream. She is rebuilding her bike by herself and is doing a pretty good job so far. She can use any help your willing to provide. Her hubby thinks she is crazy for giving this old bike a go, but I think it's great that she is trying it! Keep up the good work Kigs. Also, if you don't have Bill Silvers books you might want to pick them up. P.S. your pictures didn't come through on your PM.

KellieLyyne
honda305.com Member
Posts: 263
Joined: Tue Sep 01, 2009 7:36 pm
Location: Santa Rosa California

Post by KellieLyyne » Mon Dec 05, 2011 11:41 pm

Ok Kigs I got your last email. This picture is for the early dreams like yours (im pretty sure). Your pictures didn't come through for me to compare them. Anyone else have pictures for the later Dreams to compare? Kigs says her picture in her book looks different. She tried to post the picture, but it didn't work. Anyways, I BELIEVE the picture I posted is for the early Dreams. Someone please correct me if Im wrong.

Post Reply