I’m checking parts of my cooling system after a leak to be sure everything is good and right, but apparently af1 and scooter west, and the web, can’t tell me how to check my cap, the manual states it should be at .9 bar and it should allow air inlet during the cooling step. So please someone tell me how? It’s a cheep part but I hate to replace something because I can’t test it
Have you got excess pressure? You'd know this if coolant started steaming out of the cap (yes, it'd become steam as soon as it dropped in pressure on exit).
No steam - you've not got excess pressure, your cap is fine.
If there's a leak, just check all hose connections. If they're OK, it can be the expansion tank itself that leaks from a split seam. If that's OK, check for white smoke when you first start the engine - if there's excess (not just the normal mist from overnight condensation) then you may have a split in the head or head gasket.
Hayyyy thank you Jimc that’s super helpful, I guess my cap is fine, I only had my water pump cover o-ring go out so I’m replacing it(it looked a little shabby) I do know how I’ll likely need a new water pump I just thought I’d try the new o-ring, say Jimc do you know if the o-ring needs any sealant? I know that manual says no, but when I opened my bike up the o-ring had a thin white grease feel to it, I wasn’t sure what that was about, again thanks
I've overheated my mp3 recently on a kinda offroad forest road Well, mp3 puked some coolant on a stop. I didn't have a chance to find where it is from: a hose, a hose clamp, from cap or whatever. The good part is that it remained dry on a tarmac and didn't overheat on my way back home.
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