Triumphrat

pabonne

Developing a small leak around the oil feed line bolt to the top of the cylinder head. Any suggestions? I haven't tried anything yet, not even re-tightening. Appears to be getting worse.

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2003 790 (black, not Black) KARK'd, K&N Cones, Staintunes, 130/42 jets, 2.5 turns out, BC Superbars, CRG LS mirrors, Generic Rubber, 16t

Why? Too many H-D's.

webonnielad

That maybe a brittle cam case cover gasket. If the bikes been stored somewhere cold for the winter or is maybe 3 years old or more.

Replace the gasket, but don't over tighten the cover, get a torque wrench and do it up in an opposing diagonal pattern to the right torque, doing each bolt up a little at a time slowly.
If you over tighten it in one place, your likely to warp the case and then it will leak for ever.

If it's still in warranty have a word with your dealer about it.

Jon (UK)

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790cc 2003 T100 Bonneville. 18T Front Sprocket, AI Removed, 125 Mains, 40 Pilots, Thruxton Needles, 1 Shim,3mm Air Hole, Mixture screws 3 1/4 turns out left carb, 3 turns out right carb, Unifilter, NH Belmouth, NH Classic Togas with no mutes inserted, Stock Ignitor Unit. Hagon 320mm rear shocks & progressive fork springs. Last measured. 61.60 hp, , Max torque 48.40 in 5th gear at the rear wheel at 7200 rpm, 105 mph in 5th at 6500 rpm.

sweatmachine

there are 2 copper washers on the banjo bolt that holds the oil line to the head. That's what seals it, they can become brittle.

Loosen the banjo bolt, and remove it from the head. Wrap a rag around the oil line because it will leak some oil out.

Take the 2 copper washers and heat them to red-freakin-hot, either on your stove or with a torch, hell even a cig lighter could work. Gas stoves work easiest. Once they're red-freakin-hot toss 'em in a glass of cool water. This will soften them up a bit.

Then reinstall, et voila! It should fix the leak!

No need to drain the oil or anything like that.

PS: You still have Air Injection?

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Who says being a tool is a bad thing? I have more use for my tools than I do for most people.


Click for a picture of my slightly modified Bonnie

pabonne

Thanks for the tips. I think I'll try Sweat's suggestion first. Definitely appears to be leaking from that bolt.

Yes, AI still intact. Love the popping and blue headers. I'll probably remove it eventually, but not in any hurry.

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2003 790 (black, not Black) KARK'd, K&N Cones, Staintunes, 130/42 jets, 2.5 turns out, BC Superbars, CRG LS mirrors, Generic Rubber, 16t

Why? Too many H-D's.

grayghost

Just adding to Sweats suggestion with the Oil feed line Banjo bolt, look up the Torque spec and use a Torque wrench so it's tightened correctly.

Everybody has their own thought of what is "tight". Best to use a torque wrench.

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" No.....your other left" (Memories to when I was a Motorcycle Instructor)

pabonne

Tried heating the copper washers up and reinstalling, leaking even worse now! I swear the bolt hole going into the cylinder head looks oblong??? In the pic it would be the right side of the bolt hole that looks almost oval or tapered. Bolt seems to screw in ok however. I'm hesitant to take the bolt out of the other side to compare for fear of starting a leak there as well.

Also, torqued it to 30Nm per the shop manual and that really does not seem very tight at all. Definitely not what I would call tight.

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2003 790 (black, not Black) KARK'd, K&N Cones, Staintunes, 130/42 jets, 2.5 turns out, BC Superbars, CRG LS mirrors, Generic Rubber, 16t

Why? Too many H-D's.

sweatmachine

sorry it didn't work...I don't know what to tell ya.

__________________
Who says being a tool is a bad thing? I have more use for my tools than I do for most people.


Click for a picture of my slightly modified Bonnie

SCCTrim

D, contact Bill at Capitol Area Triumph...sounds silly but he could know something we do not. If nothing else they could hook you up with some new washers.


BTW...ty for your support in that other thread...

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Hated By All....cause thats just how it is.

pabonne

Trim, will do. I need to get the bike out to CAT for a tune-up anyway. I'm still hoping to do the Emmaus ride with you all but she's leaking quite a bit of oil now. I'll try to get it fixed by May 6th?

You're welcome. :wink: We'll find out what Mr Ed has to say. Anytime you want to take a ride to Harrisburg just let me know. Still have seen nothing on this in the local paper.

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2003 790 (black, not Black) KARK'd, K&N Cones, Staintunes, 130/42 jets, 2.5 turns out, BC Superbars, CRG LS mirrors, Generic Rubber, 16t

Why? Too many H-D's.

sweatmachine

I bet some of that copper gasket sealer stuff would work, as long as it's high-temp.

__________________
Who says being a tool is a bad thing? I have more use for my tools than I do for most people.


Click for a picture of my slightly modified Bonnie