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Old 11-10-2003, 07:33 PM   #1
garface
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Default Can you use normal crush washers on Fumotovalve?

I'm pretty sure the fumotovalve came with a blue washer on it to seal up to the oil pan. I think it was just taken away with my old engine, it must have just stuck to the pan. So is it ok to just slap an OEM washer on there? Don't see why not, just want to see if anyone has a reason not to. Thanks.
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Old 11-10-2003, 08:52 PM   #2
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I have used a Fumoto since 1k miles and am now at 10k. I used the stock Fumoto blue washer and that's it, no leaks. Prior searches about this issue here led me to believe this is what most Fumoto users do. Some do use the OEM washer instead and have had good results. I personally don't think it matters, so you should be OK with OEM. Install and check 2-3 times over the first week to make sure it's OK. Best of luck.
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Old 11-10-2003, 09:00 PM   #3
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I don't know the exact thickness of the blue washer but its purpose might be to push the valve further out. Thus in turn less threads are visable from the inside and more oil can be removed. If the blue washer's thickness is about the size of a crush washer then i haven't a clue.

:edit: the only reason i bring up the threads protruding into the oil pan is because Peaty had to file a groove into the top three threads to be flush with the inside of the oil pan.

Last edited by rbehny; 11-10-2003 at 09:09 PM.
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Old 11-10-2003, 09:52 PM   #4
aj's25rs
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you shoudnt need anything but a standard washer. most cars just have a standard washer. the thickness might matter due to the threads. good luck
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Old 11-11-2003, 10:32 AM   #5
jikhead
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I just put mine on Saturday. I used the blue washer and also used some high heat red silicone because the factory plug had a slight leak. Using the silicone helped seal it up real good.
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Old 11-11-2003, 10:37 AM   #6
bluestone
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Is the fumoto supposed to be installed with just one of the blue washers? Mine came with four... not sure why, should it be spaced out like rbenhy said?
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Old 11-11-2003, 11:06 AM   #7
Tim Sanderson
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You could try to use a crush washer but it would be difficult to get the proper torque on it because a socket won't fit. I've also seen that the threads need to be slotted so that you get a full drain.

I used blue loctite on the threads along with the fiber washer they provided.
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Old 11-11-2003, 05:03 PM   #8
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Using all four washers would be BAD! Pitch 3 and use one. Too much space is a bad thing and will probably lead to leaks. The spacing issue is really moot as the Fumoto goes into the oil pan by 3-5mm if I remember. Do a search on www.scoobymods.com for fumoto and someone there modded their Fumoto to account for this. In my opinon that is super anal retentive as the oil that the Fumoto leaves behind is approximately .00000000044223232 quarts, so why worry.
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Old 11-12-2003, 09:56 AM   #9
bluestone
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ok thanks i'll use just one. i thought the issue was particles might get left behind in those couple drops that don't come out, that's all..
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Old 11-12-2003, 02:13 PM   #10
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I use 3 of the blue washers on an OB and a WRX. I've had them on for over 6 months and haven't had any leaks.

I asked Fumoto for extras because I didn't want the valve sticking too far into the pan like on Scoobymods. Even with three washers, I still drained out a little more oil after removing the Fumoto yesterday.

-Dennis
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Old 11-12-2003, 05:27 PM   #11
bluestone
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dennis i think i bought your extra that's why i have the stack of washers. i'll use 3 as well =)
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Old 11-12-2003, 05:27 PM   #12
InfamousDX
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I just ordered me one of these because I enjoy the ease of the product. I just hope it doesn't leak, that's all.
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Old 11-14-2003, 02:29 PM   #13
e_a_olson
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I've been using mine for 2 1/2 years without any semblance of leakage...
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