oil cooler results #2

[Pat Kelly]

This may help me.
I installed my oil cooler plate on the LG (with 4 into 1). With the plate on I can't get the oil filter housing on. The oil filter housing just fits anyway.
For now the oil cooler goes back on the E.

[MAXIMAN]

The oval channel from the cooler back into the filter. Is it big enough? I can't tell.

[xschop]

adapter

Hey T.C. that's good work. The only question I was concerned with is the vertical depth (thickness) being too thin where the nut/washer compresses the housing. And also, are you going have an O-ring installed between the motor case and Adapter? Keep up the good work...And put me down for one....

[edgo]

Very cool, so to speak. I want one too.

Ed

[TopCatGr58]

Hey Maximan,

The ID of the 1/4" NPT port is as has been stated appx. 0.25" diameter circle...and you stated that YOUR 1/4" NPT worked quite well, and so that's why I made it 0.25" wide, but also 0.60" long, which equals a larger total area than a 0.25" circle, so it should easily flow as well as the cooler fittings opening!

Chop, the plate is 1.35" thick, minus 0.75" for inner recess, and then only about 0.15" for outer washer recess, leaves a good 0.40"+ of aluminum in the center for support/pressure to seal the plate..should be plenty strong, there's only a small area near the oil filter supply section that is thin but that's just the sidewall, the plate at the mounting nut/washer is plenty thick! BTW, yes, chop, there was a rubber O-ring showing in the photos!

Hey Pat, just like the SOFA, it won't necessarily be for everyone. Folks who have pipes that collect directly beneath the OEM chamber cover may NOT be able to add a cooler/Sofa plate anyways, they'll continue to drop their headers to do their oil/filter changes! Going to a larger/wider filter is the ONLY way to make this thing and use a mounting nut/washer.
So...folks that have stock pipes, or pipes that have about a 4" space between the #2 and #3 headers directly beneath the oil filter chamber WILL be able to use this OR the SOFA. I hope it can help you, but I'm afraid I can't fix a poorly designed exhaust system's clearance limitations!

Thanks everybody, I've ordered the NPT tap/die set, may take a week or more to get it, so stay tuned.
T.C.

[MAXIMAN]

TC

I'm getting more intersted. This OCASOFA could be a mod almost as cool as the 750 FD! Actually it will be "cooler" since it provides "cooling"

[xschop]

Misunderstanding

I mean there should be an O-ring around the m20 x 1.5 bolt on the inside that smashes between the adapter and the motor case mound where the bolt screws into or you'll get oil blow by at high PSI....I was just going to epoxy coat the bolt and washer, never planned on removing the adapter....would work either way

[MAXIMAN]

Re: Misunderstanding

Originally posted by xschop
I mean there should be an O-ring around the m20 x 1.5 bolt on the inside that smashes between the adapter and the motor case mound where the bolt screws into or you'll get oil blow by at high PSI....I was just going to epoxy coat the bolt and washer, never planned on removing the adapter....would work either way

HUH? Blow by around threads? It wouldn't blow by the threads if tight...or are you refering to something else.

[TopCatGr58]

Max,

For this design, the plate is bored to the full diameter of the threaded pipe, 22mm and is NOT threaded so that it will slide up on the shaft....the nut and washer is what gets threaded up the pipe to secure the plate. So just like the Oring that is around the shaft of the OEM filter bolt, one would probably be needed to help secure it from leaking, so that ALL of the oil pressure would be directed out to the cooler, vs. blowing by the securing bolt down into the filter and up into the engine!

The slight problem is that the threaded pipe is just that, threaded, and an Oring would get pinched/cut by one of the threads...so I guess I would need to grind off a thread in that area to help make a seal without cutting the Oring in two!?
T.C.

[xschop]

what T.C. said

Hey T.C. if you cut the bolt hole exactly 20mm(not 22mm), then the tolerance between the adapter and the threads will be good enough not to let any oil get thru to oppose the return oil from the cooler inlet. That's what I was referring to...Just a dab of Hi temp. Si or epoxy before you put the washer on would suffice....My 2 pennies.....I want one either way... I was able to find the just the billet for these at almost $40 after tax and I knew you could make off your previous design....I haven't got the bandit headers done yet to know if this will work for that setup but I know it will make life easier for "Le Pue" formerly known as The Blue Streak

[TopCatGr58]

Chop,

Did I say 22mm?? I meant 20mm. And it is machined for the threaded pipe to just fit into the hole snugly!

How about an O-ring placed just under the washer so that it would get squashed around the plate opening and the threaded pipe during the tightening of the nut??

But now you're saying that if the threads are fairly tightly fitted that there's enough thickness of the plate ~.40" and many layers of threads that the oil would have a hard time blowing by much at all!?

Okay, will keep all of this in mind, thanks for the input!
T.C.

[MAXIMAN]

Originally posted by TopCatGr58
Chop,


But now you're saying that if the threads are fairly tightly fitted that there's enough thickness of the plate ~.40" and many layers of threads that the oil would have a hard time blowing by much at all!?

Okay, will keep all of this in mind, thanks for the input!
T.C.

If you wrap the thread in teflon tape it will seal to the tune of WAY more pressure than the Eleven puts up.

[xschop]

teflon don

yeah teflon would work well too. That nut you cut in half was just the ticket....After all has been said I think even an O-ring before the washer would do just fine like you said......

[TopCatGr58]

Hey MAX,

Remember, the plate where the threaded pipe is fitting into is NOT threaded, just the pipe, the plate is just flat, there is NO thread to thread seal. I can understand the teflon on mating threads, but not when the plate is just flat....are you sure??
T.C.

[xschop]

Yes

Yes, It would work as long as your bolt hole is 20mm. You could wrap the threads a few extra turns and it would seal the threads and adapter wall snugly.....the hot oil is like electricity, wants to follow the path of least resistance. Seal these surfaces and it will head for the cooler like it's supposed to