White exhaust valve. Should I worry?


Information and questions on GL1100 Goldwings (1980-1983)
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Oldbear
Posts: 289
Joined: Fri Jun 24, 2011 7:02 pm
Location: Linden, Alberta, Canada
Motorcycle: 1983 GL1100A Aspencade

White exhaust valve. Should I worry?

Postby Oldbear » Thu Nov 26, 2015 9:52 pm



I was flipping through the pictures from my oil leak hunt and noticed this picture. I have some white smoke out my right exhaust on some start ups. Not sweet, not blue, not oily... Should I be worried? Plugs look fine. I'm not losing any coolant that I can see.
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White exhaust valve
White exhaust valve


My wife is the greatest - she won't let me sell my bike - I'm less grumpy when I ride...

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Aussie81Interstate
Posts: 683
Joined: Thu Nov 27, 2014 2:34 am
Location: Penrith Australia
Motorcycle: 1982 CX500 Turbo (restoration project)
1981 GL1100 Interstate (sold)
1988 GL1500

Re: White exhaust valve. Should I worry?

Postby Aussie81Interstate » Thu Nov 26, 2015 11:07 pm

You might have a burnt valve - check the adjustment.
Do you run a lead additive in your fuel? If the valve seat has damage, this could result in the valve not sealing correctly and allowing a bit of oil etc, causing this slight issue.

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Oldbear
Posts: 289
Joined: Fri Jun 24, 2011 7:02 pm
Location: Linden, Alberta, Canada
Motorcycle: 1983 GL1100A Aspencade

Re: White exhaust valve. Should I worry?

Postby Oldbear » Fri Nov 27, 2015 12:29 am

Part of the work that lead to this discovery was a valve set and carb balance. I'll have to do a compression test next. I'm going to run a better bore scope in there soon (mine won't fit - but we have Snap-on at work that will).

I don't run an additives other than gas line anti-freeze during the off season to grab any water. Are others running lead in their wings?
My wife is the greatest - she won't let me sell my bike - I'm less grumpy when I ride...

User avatar
Aussie81Interstate
Posts: 683
Joined: Thu Nov 27, 2014 2:34 am
Location: Penrith Australia
Motorcycle: 1982 CX500 Turbo (restoration project)
1981 GL1100 Interstate (sold)
1988 GL1500

Re: White exhaust valve. Should I worry?

Postby Aussie81Interstate » Fri Nov 27, 2015 2:40 am

On my most recent 1981 Goldwing GL1100 interstate - I was running 89 grade octane fuel and adding a lead replacement additive, as suggested by my mechanic. He believes the newer fuels burn a bit hotter and these engines were designed for running leaded fuel, and the valve seats are not as tolerant of non-lead fuels so you need to add a supplement to stop any valve regression to the heads causing a permanent problem - which can only be fixed by a replacement head being obtained.

Hope that translates OK - but that is what I have been told - so for the cost of some additive it puts my mind at ease, and I am continuing to use this additive in my 1988 GL1500 as well.

Cheers

f1xrupr
Posts: 396
Joined: Mon Jan 13, 2014 6:13 am
Location: Triplet Va
Motorcycle: 1980 gl 1100 Std. Vetter

Re: White exhaust valve. Should I worry?

Postby f1xrupr » Fri Nov 27, 2015 6:30 am

I can't help but to wonder if there really is lead in that additive you are using. It seems the EPA wouldn't allow it...does it say "contains lead", or "may contain.."?
My exercise bike is a goldwing.

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Aussie81Interstate
Posts: 683
Joined: Thu Nov 27, 2014 2:34 am
Location: Penrith Australia
Motorcycle: 1982 CX500 Turbo (restoration project)
1981 GL1100 Interstate (sold)
1988 GL1500

Re: White exhaust valve. Should I worry?

Postby Aussie81Interstate » Fri Nov 27, 2015 2:48 pm

It is a lead replacement additive - not lead.

I'm sure it wouldn't be allowed to be sold if it was just putting the lead back in. Not sure of your EPA - but in Australia - we probably couldn't give a bugger anyway :D




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