A Leak or Not?
A Leak or Not?
Hey wise gents - on my 71 R75/5, the oil catch (if that's what you call it) on the bottom of the block seems to get quite a bit of oil laying in it. Seems like a lot IMO. If not normal, what may be the culprit? A seal? A breather problem? The clutch works fine, no slippage, at least not yet, so maybe not the real seal? Thanks... Hudson
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Re: A Leak or Not?
Not normal. Try to get a sample of the oil on your figure and smell it. Then go smell gear oil and engine oil. You'll figure which one it is.
There's some debate on this, but if engine oil, that's a rear main seal and it's likely not to get on your clutch...unless real, real bad. If tranny input seal, that could migrate forward on the clutch pushrod and eventually get slung to the clutch disk.
Input tranny seal is the easiest to deal with...only the transmission has to come out...a few other things along the way. But if the RMS, then everything to the engine block has to come out. There's the RMS but there's also an oil pump cover o-ring. If you head for the RMS, be sure and block the crankshaft so it doesn't move forward when you remove the flywheel. If it does, then you have more stuff to remove!! Not fun.
Kurt in S.A.
There's some debate on this, but if engine oil, that's a rear main seal and it's likely not to get on your clutch...unless real, real bad. If tranny input seal, that could migrate forward on the clutch pushrod and eventually get slung to the clutch disk.
Input tranny seal is the easiest to deal with...only the transmission has to come out...a few other things along the way. But if the RMS, then everything to the engine block has to come out. There's the RMS but there's also an oil pump cover o-ring. If you head for the RMS, be sure and block the crankshaft so it doesn't move forward when you remove the flywheel. If it does, then you have more stuff to remove!! Not fun.
Kurt in S.A.
Re: A Leak or Not?
Do the easy stuff first...
Grab a flashlight and inspect the neutral indicator switch that's screwed into the bottom of the transmission. Notorious leakers. Sort of a PITA to R&R due to access. I've replaced my "dribble" switch with an Italian-made repop from Motobins. No more spotting.
Grab a flashlight and inspect the neutral indicator switch that's screwed into the bottom of the transmission. Notorious leakers. Sort of a PITA to R&R due to access. I've replaced my "dribble" switch with an Italian-made repop from Motobins. No more spotting.
1981 R65
1983 R65
1978 R100S
1995 Triumph Trophy
1983 R65
1978 R100S
1995 Triumph Trophy
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Re: A Leak or Not?
in addition to the comments by Kurt and Montmil, if its engine oil another possible leak source could be the gasket from the breather housing by the starter. That was the source of a leak I found on my '82 but I'm not familiar with the details of a slash 5 so take that into account.
In my case I jumped into RMS replacement and oil pump cover o-ring only to find that after cleaning the oil stain was sourced above the shaft centerline and traced to a bad gasket. Funny thing is I didn't see any oil dribbling from teh little weep hole on the left side of the case.
Good hunting
In my case I jumped into RMS replacement and oil pump cover o-ring only to find that after cleaning the oil stain was sourced above the shaft centerline and traced to a bad gasket. Funny thing is I didn't see any oil dribbling from teh little weep hole on the left side of the case.
Good hunting
Re: A Leak or Not?
Thanks guys. I will check out all your suggestions. I fear the worst (RMSl). I am sort of familiar with the procedure for replacing the RMS, as I have done on my 1975 moto guzzi - so I imagine it is somewhat similar. Will start with easier stuff and go from there. If I have any further questions, I will be sure to bounce it off you guys. Sincerely appreciate it...
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Re: A Leak or Not?
Not as involved as a seal replacement on a Tonti framed Guzzi. No "frame crabbing" needed.
- enigmaT120
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- Location: Falls City, OR
Re: A Leak or Not?
Mine is oily there from push rod tube seals seeping, then getting blown back around.
Ed Miller
'81 R65
'70 Bonneville
Falls City, OR
"Gasoline makes people stupid." -- Chuey
"I'll believe corporations are people when the State of Texas executes one." Bumper sticker
'81 R65
'70 Bonneville
Falls City, OR
"Gasoline makes people stupid." -- Chuey
"I'll believe corporations are people when the State of Texas executes one." Bumper sticker
Re: A Leak or Not?
Ray - Gotcha. Yeah, guzzis are beasts when you need to get to the RMS or clutch, so good to know. Enigma - will add the pushrod seals to check on the list. Great responses.
Re: A Leak or Not?
the oil pump cover can leak too. i reused the bolts on mine and a head snapped off 6 months later. now, that was a leak, baby.
Re: A Leak or Not?
The oil pump cover can leak, as opposed to the oil pump cover o ring leaking.boocephus wrote:the oil pump cover can leak too. i reused the bolts on mine and a head snapped off 6 months later. now, that was a leak, baby.
I once found a very small crack in the metal oil pump cover. That was one sob of a leak to track down.
(Thanks GSPD)
Lord of the Bings