Hey I'm back! 1975 GL1000
So, after going for a nice joy ride and putting about 200 miles on the bike this year, everything seemed to be just fine.
Again I took another trip with it on a really warm day (85F) and noticed that temp gauge was in the higher end of the scale to almost in the red.
It would bounce back and forth between the high end of the scale depending if I was going 35-55 mph.
The fan is set on a manual switch and I had it basically running non-stop for the ride.
After I got home I could here it a mild bubbling/boiling sound coming from the area of the thermostat.
Reservoir was really high... but no boil over.
Cap is OEM and it appears to be in good working condition.
Since then I've drained the coolant (no presence of oil) ...and removed the radiator.
I've pulled the thermostat and tested it in hot water. It started to open at 185 and looks as it has good clearance (I will replace this with a new one anyway).
Radiator looks good from the outside, (i've since removed and will be taking it to the local shop to get it de-scaled)
I see the water pump fins. Does the pump rotate freely? Or is there a way to check to see if it rotates with the engine?
From what I've read ... I'm now fearing the worse that it's a head gasket. I've not checked the oil yet... but I'm crossing my fingers that it would have any coolant in it.
BAH! Can anything else go wrong on this thing?! I know it's 40 years old... but seriously?! All this at one time!?
So, after going for a nice joy ride and putting about 200 miles on the bike this year, everything seemed to be just fine.
Again I took another trip with it on a really warm day (85F) and noticed that temp gauge was in the higher end of the scale to almost in the red.
It would bounce back and forth between the high end of the scale depending if I was going 35-55 mph.
The fan is set on a manual switch and I had it basically running non-stop for the ride.
After I got home I could here it a mild bubbling/boiling sound coming from the area of the thermostat.
Reservoir was really high... but no boil over.
Cap is OEM and it appears to be in good working condition.
Since then I've drained the coolant (no presence of oil) ...and removed the radiator.
I've pulled the thermostat and tested it in hot water. It started to open at 185 and looks as it has good clearance (I will replace this with a new one anyway).
Radiator looks good from the outside, (i've since removed and will be taking it to the local shop to get it de-scaled)
I see the water pump fins. Does the pump rotate freely? Or is there a way to check to see if it rotates with the engine?
From what I've read ... I'm now fearing the worse that it's a head gasket. I've not checked the oil yet... but I'm crossing my fingers that it would have any coolant in it.
BAH! Can anything else go wrong on this thing?! I know it's 40 years old... but seriously?! All this at one time!?