Posted by Rick on June 18, 2007, 3:36 pm
I have a 1989 Gold Wing 1500 with 73,000 miles on it, on which one of
the engine valves is starting to stick.
When I start it up cold, it sometimes runs on 5 cylinders for a while,
then the sticking valve frees up and it runs fine after that.
I'm pretty sure it's a sticking valve because when running the starter
I can hear the starter surge when it goes past the cylinder with the
open valive.
In general how much should it cost (i.e. how many hours should it
take) to do a valve job on a 1500?
Posted by The Older Gentleman on June 18, 2007, 5:47 pm
> I'm pretty sure it's a sticking valve
I doubt it, myself.
--
K1100LT 955i 750SS CB400F CD250 CM200 SL125
GAGARPHOF#30 GHPOTHUF#1 BOTAFOT#60
The bells, the bells.....
Posted by Ken Abrams on June 19, 2007, 9:12 am
> I have a 1989 Gold Wing 1500 with 73,000 miles on it, on which one of
> the engine valves is starting to stick.
Before you do anything drastic like tear the engine down, I'd try a Marvel
Mystery Oil shock treatment. Sometimes works good to free up sticking rings
and valves. Might not help but certainly won't hurt.
Posted by Ken Abrams on June 21, 2007, 3:34 pm
> What exactly is a "shock treatment"? Normal treatment is 2 oz per 5
> gallons of gas or 1:4 ratio in the crankcase. Does a "shock"
> treatment just use a higher does of MMO?
In addition to BOTH of the above.................
You put some directly into the cylinders (hot), thus:
(In a cage, you just pour about 8 oz. rapidly into the carb. at fast idle
until it dies.)
Warm engine.
Remove plugs.
Put about 1-2 oz. in each cylinder (depending on the size of your jugs!)
Put back plugs finger tight.
Turn over a couple of times but DO NOT START.
Let it sit (at least) overnight.
Tighten plugs (cleaning optional).
Fire it up and pray! (Expect some smoke and maybe a hard crank the first
rev. or two).
The only drawback with this is: going in through the plug pretty much misses
the intake valve guide(s).
Good luck!
Posted by The Older Gentleman on June 22, 2007, 2:26 am
> it's only occasionally
> that I get a sticking valve,
Like I said originally, I doubt that it is this. It's so rare nowadays,
and on a low-mileage Wing....
>or whatever it is,
Ah. You're starting to see sense...
--
BMW K1100LT 750SS CB400F CD250 SL125
GAGARPHOF#30 GHPOTHUF#1 BOTAFOT#60 ANORAK#06 YTC#3
BOF#30 WUSS#5 The bells, the bells.....