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Resolved 1G Oil bypass valve leak. Need washer size

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CORNF3DECLIPSE

Probationary Member
23
3
Jul 28, 2018
LEWISTOWN, Pennsylvania
Hi guys I keep getting an oil leak at my oil bypass valve, gold colored object on ofh. This last time I did it I used a copper washer i modified from the parts store but it still leaked. Now I am having a hard time finding the original washer and the parts stores are no luck. I could order a new ofh but I feel thats a little extreme for a $4 part. Please help I did kinda find the part in the 2nd picture but a quick search comes back with nothing 04184.
 

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Solution
You are confused that the one you are saying "gold colored" is 04353 in the 2nd pic and that is oil cooler bypass valve (thermostat). And that doesn't require a washer.
The one that has a washer is oil pressure relief valve (silver head one). And that is the one requires a washer (04184). The part number is MD000312. If you can't find it, you can use a 18.2mm drain plug washer like the link below.
https://stmtuned.com/products/transmission-transfercase-rear-diff-18-2mm-washer-oem-evo-dsm
You are confused that the one you are saying "gold colored" is 04353 in the 2nd pic and that is oil cooler bypass valve (thermostat). And that doesn't require a washer.
The one that has a washer is oil pressure relief valve (silver head one). And that is the one requires a washer (04184). The part number is MD000312. If you can't find it, you can use a 18.2mm drain plug washer like the link below.
https://stmtuned.com/products/transmission-transfercase-rear-diff-18-2mm-washer-oem-evo-dsm
 
Solution
NECROMANCER POWERS, ACTIVATE!!

Just to add, if anyone reading this has leaking issues with the gold bypass valve, torquing to spec AND using thread sealant like ARP will help on CLEAN threads, (NOT yellow teflon tape, since its not supposed to be used >100psi, and our engines can see roughly 90psi on startup when cold, thicker oils will be higher. IMO its really pushing it. ARP thread Sealant can take 10,000psi). Fixed mine yesterday 👍
 
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