SOHC.co.uk Forums > CB500/550
Low oil pressure at high temps?
JustcallmeMrT:
Hi all,
I've finally passed my mod 2 and have been taking my bike (1977 CB550F2) to work and back for the last 2 days. Mornings all is fine, but in afternoon traffic the oil pressure light comes on as the bike starts to get hot. It has sufficient oil, and I popped the tappet inspection caps and all seems oily up top, so not sure what's going on. Any suggestions?
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hairygit:
Does the light go out again above tickover/idle speed? If so, it is not unusual on a high mileage engine, also if it has new rings and shells it will run hot until properly run in. If the oil light comes on much above idle, STOP the engine and investigate further. Well done on getting your licence.
Trigger:
Hairy is on the right line here. Because you are running new rings, the engine will be running hotter than normal. But, sitting in traffic is not a good way to run a top end in. Have had this problem with 500's and 550's, it was the oil pressure switch.
Have you done a oil pressure test ?
Keep an eye on it
JustcallmeMrT:
--- Quote from: hairygit on May 06, 2016, 06:30:25 AM ---Does the light go out again above tickover/idle speed? If so, it is not unusual on a high mileage engine, also if it has new rings and shells it will run hot until properly run in. If the oil light comes on much above idle, STOP the engine and investigate further. Well done on getting your licence.
--- End quote ---
Thanks Hairy. The light doesn't go out above idle, bit does go out after the bike cools a bit.
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JustcallmeMrT:
--- Quote from: Trigger on May 06, 2016, 07:18:17 AM ---Hairy is on the right line here. Because you are running new rings, the engine will be running hotter than normal. But, sitting in traffic is not a good way to run a top end in. Have had this problem with 500's and 550's, it was the oil pressure switch.
Have you done a oil pressure test ?
Keep an eye on it
--- End quote ---
How do I check oil pressure?
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