Crossover Pipes O-Ring Installation Tips


Information and questions on GL1100 Goldwings (1980-1983)
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garywyoung
Posts: 27
Joined: Tue Sep 20, 2016 7:32 pm
Location: Cincinnati, OH
Motorcycle: 1982 GL1100

Crossover Pipes O-Ring Installation Tips

Post by garywyoung » Sun Dec 02, 2018 7:52 pm



Howdy, folks. The o-rings on my cooling system crossover pipes are leaking and in need of being changed, and while I can easily change the left-side set (because that pipe is quite short, so I can reach both ends of it), the right-side--which terminates way under the carbs--is proving rather challenging. If I seat the o-ring in the thermostat case (item 2 on the attached thermostat diagram)--as opposed to stretching it onto the pipe itself--and then try to press the crossover pipe (item 4 on the attached diagram) into the thermostat case, the pipe slices the o-ring on the way in. However, if I try to stretch the o-ring onto the crossover pipe first and then press the pipe/o-ring into the thermostat case, the o-ring wants to sneak out one side, thus exposing a gap and allowing leakage. On the left-side, I can easily reach a screwdriver even to the inside joint and use the tip to coax the o-ring in. But unless I buy the world's longest flat-blade screwdriver AND grow a pair of eyes on my finger tips to that I can even see the dang thing nestled way back in there, I can't think of a way to get that pipe/o-ring seated. Please tell me that I don't have to remove the carburetors to replace a simple o-ring. Please? I'm begging you!

And as always, I appreciate the excellent help you folks have always provided.
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DenverWinger
Posts: 519
Joined: Thu Jun 23, 2011 2:20 pm
Location: Denver, CO
Motorcycle: 1980 GL-1100 STD Vetter (2005-)
1993 GL-1500 Aspencade (2017-)
1983 Trav-Lite Camper (2010-)
Past rides
1972 CL-350 (1980-1988) sold
1978 Suzuki GS-550 (1985-2005) sold
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Re: Crossover Pipes O-Ring Installation Tips

Post by DenverWinger » Sun Dec 02, 2018 9:29 pm

Put the O-rings on the pipe, then a little grease on the rings and tube inlets works wonders!
♫ 99 Little Bugs in the Code, ♪
♪ 99 Bugs in the Code. ♫ :(
♫ Take one down, Patch it around, ♪
♫ 127 Little Bugs in the Code. ♫ ♪ :shock:

~Mark

garywyoung
Posts: 27
Joined: Tue Sep 20, 2016 7:32 pm
Location: Cincinnati, OH
Motorcycle: 1982 GL1100

Re: Crossover Pipes O-Ring Installation Tips

Post by garywyoung » Mon Dec 03, 2018 1:33 pm

Thanks, Mark. I had tried greasing the o-ring itself, but didn't think to slather grease in the receiver cup of the thermostat case--I think I was afraid of introducing grease, even just a little of it, into the cooling system. I'll try your suggestion.

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