Join Date: Jun 2012
Location: Harpswell, Maine, USA
Model: 3X 1976 GL 1000's 2X 1977 GL1000, 1981 GL1100
GL1100. Stupid is as stupid does
I am not in the habit of flaying myself in a forum of like minded, yet unknown, individuals however I feel I must if only to purge my rank stupidity in approaching a mechanical problem about which I have huffed on about laboriously on 2 websites.
All the engine building experience inthe world cannot help you if you don't recognize an obvious f**kup. I didn't.
I had replaced the head gaskets and done a valve job on my GL1100 sidecar rig and was complaining long and loud about knocking, synchronizing etc... Those problems were solved by using the correct spark plugs and actually checking the flow through the air filter (there wasn't any).
Now that the beast was running very smoothly, although smokey on startup, I smelled coolant and the level in the catch tank dropped. I deduced I had screwed up the head gaskets and decided to try a sealant as these items are pricey in Europe.
I got everything going, put the minimum amount of sealant in the system and let it idle. It was burbling away happily for 45 minutes when I noticed the catch tank filling. It then started pouring coolant out the drain hose replicating a blown head gasket pressurizing the cooling system.
Then I noticed what was wrong: the PO, who sold me the bike because of a blown head gasket, had put the hoses on the wrong fittings on the catch tank. The radiator cap was doing it's job of evacuating excess pressure in the form of vapor, which was pressurising the tank and forcing liquid out the drain hose. I inverted the hoses, the catch tank began draining back into the radiator and the world is once again safe for democracy.
I post this self humiliation to warn all those who think they might have a major problem with their motors that could be caused by a simple oversight.:wtf: Thanks for your attention; you may now go back to more interesting posts.
Writing roughshod over the English language