After I reassembled a 1964 305 engine in the dream I was restoring, as soon as I put oil in the engine, it began leaking profusely out of the round cover where the oil filter is. I replaced the o-ring with one out of an engine that I know didn't leak but it leaked in this engine too. Then I tried a new o-ring and that didn't work so then I tried rtv plus a new o-ring and it still leaks just as bad. I was thinking that it may be leaking around the three screws that hold it one. Any help would be apprediated.
Thanks, Cole
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305 oil leak
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LOUD MOUSE
- honda305.com Member
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- Joined: Mon Aug 15, 2005 8:23 am
- Location: KERRVILLE, TEXAS
Re: 305 oil leak
2 "O" rings in there. ...........lm
cphillips wrote:After I reassembled a 1964 305 engine in the dream I was restoring, as soon as I put oil in the engine, it began leaking profusely out of the round cover where the oil filter is. I replaced the o-ring with one out of an engine that I know didn't leak but it leaked in this engine too. Then I tried a new o-ring and that didn't work so then I tried rtv plus a new o-ring and it still leaks just as bad. I was thinking that it may be leaking around the three screws that hold it one. Any help would be apprediated.
Thanks, Cole
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LOUD MOUSE
- honda305.com Member
- Posts: 7818
- Joined: Mon Aug 15, 2005 8:23 am
- Location: KERRVILLE, TEXAS
Re: oil leak
I'd say if the leak is at the screws ya need to find out how as I've never seen that. ..........lm
cphillips wrote:Yes I replaced both o-rings to no avail. Is there any way to seal the screws because that is where I think that it is leaking.
Assuming that you have the later type case and cover with the larger access hole, the two o-rings are different. If you use the same 3mm cross section o-rings in both positions, you will have a pronounced oil leak from under the cover. For the outboard position, a 74.5 X 8mm o-ring is required. Regards, Chase