oil leaking from timing belt cover


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thotiana
Posts: 9
Joined: Sat Oct 12, 2019 11:15 am
Location: buffalo, ny
Motorcycle: 1982 Gl1100

oil leaking from timing belt cover

Post by thotiana » Sat Oct 12, 2019 11:19 am



So... There seems to be oil leaking from my timing belt cover? There shouldn't be oil in there right? Does anyone have any insight as to wtf is going on?

Thank you so much for taking the time to read this and even more if you respond



bigrich8
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Motorcycle: 1980 GL1100 Standard
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Re: oil leaking from timing belt cover

Post by bigrich8 » Sat Oct 12, 2019 11:32 am

Hi,

Similar to mine. I have not investigated yet but I would say it's the camshaft seal

thotiana
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Location: buffalo, ny
Motorcycle: 1982 Gl1100

Re: oil leaking from timing belt cover

Post by thotiana » Sat Oct 12, 2019 1:16 pm

Thanks. I'm looking around (on the internet, in this forum) and I've found that there are elegedly 3 seals inside the timing belt cover that could be leaking. 2 camshaft seals and the crankshaft seal. What I haven't found are the parts numbers for these or what they actually look like. Im tempted to sell my bike as I need to hit the road soon so I'm very reluctant to meddle with the timing belt situation,hence me not knowing what they actually look like. So if anyone could enlighten me with a description, pictures or something of the like I would be so grateful. I see some components being sold together from inside the belt cover and I wonder if among these components are the seals I need



thotiana
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Location: buffalo, ny
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Re: oil leaking from timing belt cover

Post by thotiana » Sat Oct 12, 2019 1:42 pm

Alright so I've found a part for what should be the "camshaft end oil seal" which is a little rubber seal.i think this is what I'm looking for? 91209-371-003

As for any kind of "crankshaft seal" I've had no luck thus far

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grand rouge
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Re: oil leaking from timing belt cover

Post by grand rouge » Sat Oct 12, 2019 2:04 pm

Check out a motorcycle parts site such as www.partzilla.com

And just a thought.... What is your history with your machine? Has oil been leaking for a while? Is oil level correct? I ask last question because I purchased a GL 1200 that was leaking from many seals. Drained oil. 6.8 quarts came out. Capacity is 3.4 or so.... 4,000 miles and one shifter shaft seal later......not a leak...of any kind..anywhere.

Seals....if not available with the honda specific part number, knowing the seal dimensions will...in nearly every instance will serve to get you a proper seal

thotiana
Posts: 9
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Re: oil leaking from timing belt cover

Post by thotiana » Sat Oct 12, 2019 3:13 pm

Hey,
Yeah I've been looking on parts sites I'll try that one though. Just having trouble finding crankshaft seal though not sure if I'm using the right terminology. Just got this bike have hopped on a couple gl1100 along my way while rambling around the country and rode without incident but unfortunately this one blew whichever seal in timing belt cover after about 150 miles. No leak before that, at least that I noticed.

thotiana
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Re: oil leaking from timing belt cover

Post by thotiana » Sun Oct 13, 2019 11:56 am

opened it up. Oil is definitely coming from the crankshaft (the one in the middle?) I still don't really understand wtf but there seems to now be oil leaking from the bottom bolts of each of the valve covers and white smoke coming from the exhaust. I have more studying to do but I think the oil seal for the crankshaft is at the back of the crankshaft? Any insight or tips would be very helpful thanx my dudes

winguyjo
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Re: oil leaking from timing belt cover

Post by winguyjo » Sun Oct 13, 2019 12:28 pm

in the partzilla diagram, under the "crankshaft" section it's part 13 ... honda part number 91201 371 005 front crankshaft seal.
sounds like you have a leaking valve cover gasket (not a big deal), a head gasket issue as well , and who knows what else.

thotiana
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Re: oil leaking from timing belt cover

Post by thotiana » Sun Oct 13, 2019 12:32 pm

thank you so much. The oil appears to be leaking from the bolts and not the gasket which I find to be quite peculiar.

thotiana
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Re: oil leaking from timing belt cover

Post by thotiana » Sun Oct 13, 2019 12:50 pm

Also I checked all the spark plugs and none of them are squeaky clean as to suggest a head gasket issue

thotiana
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Re: oil leaking from timing belt cover

Post by thotiana » Sun Oct 13, 2019 1:46 pm

To be clear, the crankcase has to be split for me to replace this seal?

Rambozo
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Re: oil leaking from timing belt cover

Post by Rambozo » Sun Oct 13, 2019 4:27 pm

thotiana wrote:
Sun Oct 13, 2019 1:46 pm
To be clear, the crankcase has to be split for me to replace this seal?
No, it can be pulled and installed once the timing pulley is removed.



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