Water leak by weep hole Fe570 09

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Joined
May 1, 2021
Messages
1
Location
Portugal
Hi guys
my bike starts leaking by the weep hole behind the water pump, it doesn't stop leaking when engine warm up a little.
i read several foruns about the seal, but will be this case? i remove the water pump and didn't notice any failure on the seal (visual) only notice that the seal is in the wrong side.
if the cap of the radiator is off, the leaking stops and start to leak some water in the radiator.
the pipes and when take off the cap of radiator doesn't gain any type of pressure in the circuit, will be head gasket failure and still no pressure in circuit? can be a faulty thermostat? heeelp
 
My Mistake, sorry missed the year of the bike.

fedge
 
Hi guys
my bike starts leaking by the weep hole behind the water pump, it doesn't stop leaking when engine warm up a little.
i read several foruns about the seal, but will be this case? i remove the water pump and didn't notice any failure on the seal (visual) only notice that the seal is in the wrong side.
heeelp

If the seal is backwards then it must be replaced. Might have worked fine for years but will only get worse once the leaking starts. A proper search on this forum should explain everything you need to know. If my memory was better, I’d instruct you, but that’s not the case. Minimal disassembly with bike laying on its side. Drill a small hole in the metal seal body to insert pick/nail/screw to pry out. All parts were available as oem.

Double check seal orientation on older posts as there is conflicting/confusing information. As a general rule I “think” that the sealing lip should always be on the pressure side.
 
Same worries on my 450 / 2009 easy to find parts
Plan is empty the oil, lay the bike, open the pump, empty all the coolant, remove the thin periferical engine case around pump and clutch and change oil seal with coolant seal. Also checking wear of the shaft, put everything back together, don't forget to put the oil in...
Go to the market, buy good food and beer and watch the debrief of the Arlington SX race...
 

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