Weep Hole Question (i.e. Underneath Engine) - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums
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Old 10-19-2004, 11:51 AM   #1 (permalink)
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Is coolant suppose to leak through the Weep Hole, which is a small pin size hole underneath the engine? Only a small amount of coolant leaked through the hole. The dealership where i bought my quad, when i told them about this acted like it was a big deal and said you must bring it in immediately. This is the same dealership that charged me $250 to look at my valves, phucking ripoff. Another dealership nearby said that it is normal for coolant to leak through the weep hole. Who should i believe? My coolant level in resovoir tank is in the middle level.
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Old 10-19-2004, 12:15 PM   #2 (permalink)
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A little bit of both. It shouldn't leak but it wont hurt if it does, BUT if you don't let the coolant get to low, it will blow the engine.

And for the dealer that said $250 to look at the valves they are retarded
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Old 10-20-2004, 07:48 PM   #3 (permalink)
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does everyone else agree that a small amount of coolant can leak through the weep hole, and it is no big deal? My ripoff dealership says it needs to get repaired ASAP. Dont know what to think.
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Old 10-20-2004, 08:19 PM   #4 (permalink)
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my guess is that anything leaking from anywhere aint no good.
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Old 10-20-2004, 09:47 PM   #5 (permalink)
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If it is leaking, it will only get worse. Leaks don't get better. Why wait to fix it and risk cookin' your engine. Fix it now and then you don't need to worry about it getting low on coolant.
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Old 10-21-2004, 02:11 AM   #6 (permalink)
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It should be repaired. No more than an hour labor and about $12.00 for parts. Sounds like you should find a differant shop to do the repair though. If it's not under warranty it doesn't have to be a dealer. Good Luck .

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Old 10-28-2004, 01:20 AM   #7 (permalink)
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Mine did the same at first, and then i would find a little puddle of antifreeze on the pavement. Asked about it and the dealer said that I needed to rebuild my coolant pump, the rep said that the kit consited of a couple of gaskets and a bearing. Think he said i was like 70 bucks for the kit.!!
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Old 10-28-2004, 11:05 AM   #8 (permalink)
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I know this is old but hope it helps. I read on other forums that the impeller and a couple of seals are known to go bad on the YFZ water pump....The symptoms are that a small amount of coolant leaks out the weep hole.

When I took mine in to the dealership... they found that the impeller had even failed.
So to answer your question... yes fix it!!! it might mean that you water pump is not working.....i.e. you could over heat! not good.

Mine was covered under warranty, but I don't think it should be much, that person that posted it would cost $70 to fix- the dealer is probably charging $60/hr for labor!
I only took mine into the dealer cause I bought that extended 3yr warranty just for crap just like this.

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Old 10-28-2004, 11:43 AM   #9 (permalink)
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Quote:
Originally posted by WoodyArthur@Oct 28 2004, 08:05 AM

Mine was covered under warranty, but I don't think it should be much, that person that posted it would cost $70 to fix- the dealer is probably charging $60/hr for labor!
Actually for the complete setup it is around $60-70.

Outer Oil seal
Inner Oil seal
Bearing
Impeller shaft
Side case Gasket

As for an imediate fix, just the Outer Oil Seal, about $6-7 and not more than 30mins of your time..
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Old 10-29-2004, 08:36 AM   #10 (permalink)
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GET IT FIXED... the coolant systems dont hold that much fluid. I junked the head on mine cuz of the same problem. my water pump didnt leak a drop and during a gncc race the seals and impeller shaft failed and leaked out all my water. causing the quad to overheat and crack my head. ie..front right corner where the head bolt goes down through. I know of 4 other yfz's that have done the same exact thing and cracked in the same spot. NEW HEAD 600 dollars WATERPUMP rebuild 60 dollars......
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