Author Topic: Oil Leaking??? (Read 2765 times)

custommade · « **on:** October 30, 2011, 10:51:28 PM »

Hi guys, Pulled the Sprocket/Oil pump cover off my 77 CB550 project today.
It had a fair bit of oil and a little water in the part sectioned off for the oil pump.
I noticed that oil comes out of one of the bolt holes that secure the cover (pictured below).
Is it meant to come out of here? I put the bolt back in just to stop the oil.
Seems the previous owner was a bit rough when it comes to work quality on this bike so thought
they might have cracked what was meant to be a blind hole casting?

Cheers

Luke

Greggo · « **Reply #1 on:** October 30, 2011, 10:52:52 PM »

Oil drains out of that bolt hole when you remove it?? That's not good.

Greggo · « **Reply #2 on:** October 30, 2011, 10:54:21 PM »

Looks like your shift shaft seal was causing much of that goop to build up. Is it fresh oil coming from the bolt hole?

custommade · « **Reply #3 on:** October 30, 2011, 11:08:05 PM »

Quote from: Greggo on October 30, 2011, 10:54:21 PM

Looks like your shift shaft seal was causing much of that goop to build up. Is it fresh oil coming from the bolt hole?

Hi Greggo, yeah seems to be. If I remove that bolt it had a fairly steady stream?

custommade · « **Reply #4 on:** October 31, 2011, 03:58:11 AM »

anyone else got any ideas??

Greggo · « **Reply #5 on:** October 31, 2011, 06:30:43 PM »

Pull the oil pan off and have a look-see at the primary chain. See if it's rubbing against the case. The only bolt hole oil should flow out of is the drain plug. You may have a lot of metal floating around inside the engine. What are/were your intentions with the bike?

custommade · « **Reply #6 on:** October 31, 2011, 06:53:57 PM »

Cafe project was going to freshen up the engine anyway looks like il have to weld it up too.

Thanks

custommade · « **Reply #7 on:** November 01, 2011, 12:27:01 AM »

Pulled the pan off to have a look, Bolt must be a bit long its busted the back out of the casting,
Will have to weld it up.....fun.

dave500 · « **Reply #8 on:** November 01, 2011, 12:38:59 AM »

or teflon tape that bolt?

Rgconner · « **Reply #9 on:** November 01, 2011, 08:12:44 AM »

Quote from: dave500 on November 01, 2011, 12:38:59 AM

or teflon tape that bolt?

Is that Generally Regarded As Safe?

I would be concerned about engine temps melting the tape.

If that works, it would rock, I have a leaky cam cover bolt.

MCRider · « **Reply #10 on:** November 01, 2011, 08:26:05 AM »

Quote from: Rgconner on November 01, 2011, 08:12:44 AM

Quote from: dave500 on November 01, 2011, 12:38:59 AM
or teflon tape that bolt?

Is that Generally Regarded As Safe?

I would be concerned about engine temps melting the tape.

If that works, it would rock, I have a leaky cam cover bolt.

From what I've googled, regular plumbers teflon tape has a temp range to 550°F. Should be OK.

brooze72 · « **Reply #11 on:** November 01, 2011, 08:36:54 AM »

Yea, that should be fine. Wouldn't think the oil would get much over 150 ~180 or it would seriously degrade. If you have the pan off, maybe a little JB weld inside & then a shorter bolt with T tape as insurance. Hint: Be sure & wrap the tape in the same direction as the bolt threads on so it won't bunch up.

Bob Wessner · « **Reply #12 on:** November 01, 2011, 08:41:46 AM »

Also, be careful to use the correct Teflon tape. As I recall, white is traditional plumber's variety. You need to use the kind suitable for petro chems, I believe it is yellow.

brooze72 · « **Reply #13 on:** November 01, 2011, 08:50:49 AM »

Yes, you're right Bob, the white stuff is very thin. I use pink stuff for hydraulic fittings.

MCRider · « **Reply #14 on:** November 01, 2011, 09:14:56 AM »

A quick Google confirms the yellow as being for natural gas, hence also petroleum products. Here's more:
"Beyond Teflon tape
Many major manufacturers of hydraulic equipment recommend NOT using Teflon tape, as it often leaks and bits of it break loose, then fouling valves and other components. Loctite PST Pipe Sealant is highly recommended and IMHO the way to go. I've seen pipes doped with it, then tightened only hand tight that held 100 psi. No, I'm not a Loctite rep, just a satisfied user. I rarely use tape anymore. "

Rgconner · « **Reply #15 on:** November 01, 2011, 10:58:48 AM »

Quote from: MCRider on November 01, 2011, 09:14:56 AM

A quick Google confirms the yellow as being for natural gas, hence also petroleum products. Here's more:
"Beyond Teflon tape
Many major manufacturers of hydraulic equipment recommend NOT using Teflon tape, as it often leaks and bits of it break loose, then fouling valves and other components. Loctite PST Pipe Sealant is highly recommended and IMHO the way to go. I've seen pipes doped with it, then tightened only hand tight that held 100 psi. No, I'm not a Loctite rep, just a satisfied user. I rarely use tape anymore. "

Apologies for threadjacking...

Should I really have that much pressure at the cam endcap? The more I think about it, why would the aluminum and copper washers not make a good seal for that area?

It is just a gallery, I would think there would not be that much pressure there, but a lot of oil as that is the end of the cam shaft and the bearing.

Blockage?

Duanob · « **Reply #16 on:** November 01, 2011, 11:38:26 AM »

Quote from: Rgconner on November 01, 2011, 10:58:48 AM

Quote from: MCRider on November 01, 2011, 09:14:56 AM
A quick Google confirms the yellow as being for natural gas, hence also petroleum products. Here's more:
"Beyond Teflon tape
Many major manufacturers of hydraulic equipment recommend NOT using Teflon tape, as it often leaks and bits of it break loose, then fouling valves and other components. Loctite PST Pipe Sealant is highly recommended and IMHO the way to go. I've seen pipes doped with it, then tightened only hand tight that held 100 psi. No, I'm not a Loctite rep, just a satisfied user. I rarely use tape anymore. "

Apologies for threadjacking...

Should I really have that much pressure at the cam endcap? The more I think about it, why would the aluminum and copper washers not make a good seal for that area?

It is just a gallery, I would think there would not be that much pressure there, but a lot of oil as that is the end of the cam shaft and the bearing.

Blockage?

You should start a new thread...

Duanob · « **Reply #17 on:** November 01, 2011, 11:42:22 AM »

Quote from: custommade on October 30, 2011, 10:51:28 PM

Hi guys, Pulled the Sprocket/Oil pump cover off my 77 CB550 project today.
It had a fair bit of oil and a little water in the part sectioned off for the oil pump.
I noticed that oil comes out of one of the bolt holes that secure the cover (pictured below).
Is it meant to come out of here? I put the bolt back in just to stop the oil.
Seems the previous owner was a bit rough when it comes to work quality on this bike so thought
they might have cracked what was meant to be a blind hole casting?

Cheers

Luke

It looks like someone (PO) didn't use a proper length OEM machine screw. That bolt is not OEM probably too long and punched through the inside side of the casing. Maybe some JB weld deep into the hole and run a tap into it as far as the screw needs to go? Drain the oil of course. There is a bolt screw list on this forum somewhere. get some new proper sized allen head screws for replacement.

brooze72 · « **Reply #18 on:** November 01, 2011, 11:52:59 AM »

Quote from: MCRider on November 01, 2011, 09:14:56 AM

A quick Google confirms the yellow as being for natural gas, hence also petroleum products. Here's more:
"Beyond Teflon tape
Many major manufacturers of hydraulic equipment recommend NOT using Teflon tape, as it often leaks and bits of it break loose, then fouling valves and other components. Loctite PST Pipe Sealant is highly recommended and IMHO the way to go. I've seen pipes doped with it, then tightened only hand tight that held 100 psi. No, I'm not a Loctite rep, just a satisfied user. I rarely use tape anymore. "

Very true, it is important to apply T tape properly in high pressure situations. Most issues you mention are due to a poor application of the tape, I do agree on the preference to use of proper pipe dope though. This particular application is not pressurized, so T tape would be a good short term fix.

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Author Topic: Oil Leaking??? (Read 2765 times)