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Saw this on ebay .. how does it work ?
Does it have a thermostat in it or what ?
Does it have a thermostat in it or what ?
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Yup, thermostat. Oil is routed though the cooler once a certain temp. is reached - not sure what the set point is.Ed
To measure is to know.
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Couldn't see any adjustment on it ..
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The BP-180 thermostat opens at @ 180F. I believe it was designed to be non-servicable, not saying you couldn't open it up though. It was probably a press fit with a O-ring on that one side.1979 GS1000E (44 Yrs), 1981 GPz550
Departed: 1970 Yamaha R5A, 1971 R5B, 1975 Honda XL250, 1983 Suzuki PE175, 1983 CB1100F, 1983 BMW R100RS, 1992 ST1100Comment
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So does this device also act as a check valve when no oil is flowing through it? I'm asking because I just bought a Lockhart oil cooler with this exact same thermostat in the lines, and was just curious.sigpic
SUZUKI: 1978 GS1000E; 1980 GS1000G; 1982 GS650E; 1982 GS1100G; 1982 GS1100E; 1985 GS700ES
HONDA: 1981 CB900F Super Sport
KAWASAKI: 1981 KZ550A-2; 1984 ZX750A-2 (aka GPZ750); 1984 KZ700A-1
YAMAHA: 1983 XJ750RK Seca
Free speech is the foundation of an open society. Each time a society bans a word or phrase it deems “offensive”, it chips away at that very foundation upon which it was built.
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Sort of, I imagine the design utilizes a bi-metalliac spring in the housing that pushes a slide port to let oil flow to the cooler above 180F. Below that temp the oil port is closed and merely routes your oil back to the oil pressure housing. So unlike a check valve the BP-180 won't hold the oil in the oil lines or oil cooler after you stop the engine. The oil will drain back to the lowest point.
The Lockhart thermostats are kinda rare but I did quick serach on FleaBay and found this item which may be of interest to someone with a oil cooler on their GS and would like to add a thermostat. Just hide it under the tank so no one sees it
1979 GS1000E (44 Yrs), 1981 GPz550
Departed: 1970 Yamaha R5A, 1971 R5B, 1975 Honda XL250, 1983 Suzuki PE175, 1983 CB1100F, 1983 BMW R100RS, 1992 ST1100Comment
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Nothing a little shot of black paint wouldn't cure.Originally posted by srsupertrap View PostSort of, I imagine the design utilizes a bi-metalliac spring in the housing that pushes a slide port to let oil flow to the cooler above 180F. Below that temp the oil port is closed and merely routes your oil back to the oil pressure housing. So unlike a check valve the BP-180 won't hold the oil in the oil lines or oil cooler after you stop the engine. The oil will drain back to the lowest point.
The Lockhart thermostats are kinda rare but I did quick serach on FleaBay and found this item which may be of interest to someone with a oil cooler on their GS and would like to add a thermostat. Just hide it under the tank so no one sees it
http://cgi.ebay.com/ebaymotors/Harle...spagenameZWDVWsigpic
SUZUKI: 1978 GS1000E; 1980 GS1000G; 1982 GS650E; 1982 GS1100G; 1982 GS1100E; 1985 GS700ES
HONDA: 1981 CB900F Super Sport
KAWASAKI: 1981 KZ550A-2; 1984 ZX750A-2 (aka GPZ750); 1984 KZ700A-1
YAMAHA: 1983 XJ750RK Seca
Free speech is the foundation of an open society. Each time a society bans a word or phrase it deems “offensive”, it chips away at that very foundation upon which it was built.
Comment
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You can also get a remote oil thermostat from Perma-Cool. Works on the same principle as the ones above, just that they have either NPT threads so you can use them with stainless lines. Perma-Cool is about $40. Mocal also makes nice thermostats but they're at least twice as expensive as the Perma-cool.
Also www.anplumbing.com for Earl's lines and fittings.Comment
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