-10AN Turbo Oil Drain Adapter for OM617a Block....Any interest? - Page 2 - PeachParts Mercedes-Benz Forum

mach4 · #16 02-24-2015, 10:55 AM

Quote:

Originally Posted by winmutt

Or plan b, just cut the stock drain pipe and use a rubber hose and clamp?

That doesn't solve the problem of the design of the grommet in the pan. If you've ever wrestled with getting the stock pipe into a new grommet, especially with the engine in the car, you'll most certainly see the elegance of this solution.

If it's offered as a complete kit with adapters for both ends and a made up hose sized to fit, for a good price, it should be a winner. If not, the perceived aversion to AN Fittings on this board will likely restrict acceptance. (I should note that two kits will need to be offered, given that the Cali turbo is mounted higher than the standard and will require a slightly longer hose)

For what it's worth, I'd suggest making the adapter in two pieces - the sleeve (threaded for 1/2 NPT and a 1/2NPT-to-10AN adapter. That way if someone had to have their hose clamps, they could use a 1/2NPT-to-hose barb adapter - or -8AN, or press on, or any other connector of choice. I know there's a concern about leaks using the NPT, but it's got to be less than the press fit of the adapter into the pan and very nearly zero if used with JBWeld or some other permanent sealer. The flow is very low as there is a restrictor on the inlet line to the turbo and hence very little pressure (probably only the crankcase pressure)

...just my $0.02

mach4 · #17 02-24-2015, 11:01 AM

Quote:

Originally Posted by Mylesofsmyles

Josh at Yoshifab has worked up a drawing, and a prototype is in the works.

I need to send Josh some pictures of the pan with the drain for the line from the stock catch can. The one I lent him for design and fitting purposes was a Cali pan that doesn't have that drain. Depending on his design it could potentially interfere. I'll do that today.

mach4 · #18 02-24-2015, 11:11 AM

For those who might be having trouble visualizing this solution, here is the standard adapter used on the T3/4 turbos for a -10AN hose on the drain side.

winmutt · #19 02-24-2015, 02:55 PM

Quote:

Originally Posted by mach4

For those who might be having trouble visualizing this solution, here is the standard adapter used on the T3/4 turbos for a -10AN hose on the drain side.

ps is not big enough to flow for a holset.

Mylesofsmyles · #20 02-24-2015, 03:59 PM

Quote:

Originally Posted by mach4

I need to send Josh some pictures of the pan with the drain for the line from the stock catch can. The one I lent him for design and fitting purposes was a Cali pan that doesn't have that drain. Depending on his design it could potentially interfere. I'll do that today.

The design will not interfere. We have it designed and the prototype is in the works.

I'll post a picture tonight. It will be a straight press fit 10AN fitting. This is a known and tested solution, something he designed for 400+ HP turbo gasoline applications, it'll handle far more abuse than any om617 can apply.

The kit WILL NOT include a hose or turbo fitting. The turbo fitting differs, depending on your chosen turbo, and hose length varies based on your setup. There are dozens of afforable hose solutions all over the Internet. You can have a 10AN hose in your chosen length and fitting bends for under $50.

Keep in mind, this solution isn't just for those trying to improve the cumbersome MBZ design, it's also for those installing custom turbos, and maybe even custom manifolds. This is designed to make the oil drain tube very modular and accepting of any configuration of your choice.

Pricing for this fitting should be under $50 in the group buy. After that, it'll be availae and in stock at Yoshifab, but the price will be more than the grOil buy price.

If there is enough interest, I can inquire about having hoses made, and supply them seperatly.

As for hose and clamp folks, there are 10AN to hose barb fittings available, just gotta find em.

Mylesofsmyles · #21 02-25-2015, 10:17 PM

Okay, I need to know how common the PCV Oil Return Nipple is.

My '82 300D has it's PCV Oil Return right next to the Turbo Oil Drain...

mach4, the pan you gave Josh lacks this, and you say it's specific for CA cars. So CA cars have this, and others don't?

My $0.02 is that it's a cool design to have the nipple, and a user-friendly way of having a reliable PCV Oil Return. Easy to run a hose & clamp, and convert to an oil catch, or relocate my current catch can.

Can y'all who are interested please share how your OM617 is configured. Clearance is a concern here.

Also curious how other OM617's are configured....those that lack this nipple, where is your PCV draining to?

mach4 · #22 02-25-2015, 10:32 PM

Quote:

Originally Posted by Mylesofsmyles

Okay, I need to know how common the PCV Oil Return Nipple is.

mach4, the pan you gave Josh lacks this, and you say it's specific for CA cars. So CA cars have this, and others don't?

The California cars in '85 had a trap oxidizer that required the turbo to be moved up and a different air cleaner setup. If I'm not mistaken, the 85 dumped directly into the intake and did not have the nipple in the pan (I didn't have room for the filter so it was discarded before I even examined it)

All the turbo 617s had the drain nipple.

Mylesofsmyles · #23 02-25-2015, 10:40 PM

So the lack of the nipple is a '85 only thing? Isn't the last year for the 617, or the 123?

mach4 · #24 02-25-2015, 10:45 PM

Quote:

Originally Posted by Mylesofsmyles

So the lack of the nipple is a '85 only thing? Isn't the last year for the 617, or the 123?

Indeed.

Mylesofsmyles · #25 02-25-2015, 11:00 PM

What about NON-CA cars?

mach4 · #26 02-25-2015, 11:09 PM

Quote:

Originally Posted by Mylesofsmyles

What about NON-CA cars?

They have the nipple.

Mylesofsmyles · #27 02-25-2015, 11:28 PM

Sounds like all but one year, 85, CA only cars lacked the nipple.

This adapter needs to work for those WITH the nipple.

Until I can borrow someone's oil pan, WITH nipple, this project is at a stand still

mach4 · #28 02-26-2015, 12:45 AM

In post #17 I said

Quote:

I need to send Josh some pictures of the pan with the drain for the line from the stock catch can. The one I lent him for design and fitting purposes was a Cali pan that doesn't have that drain. Depending on his design it could potentially interfere. I'll do that today.

To which you replied

Quote:

The design will not interfere. We have it designed and the prototype is in the works.

And so I didn't send pictures...

So now, here is the picture, along with measurements, that I didn't send before

The 29.5 mm indicator is the diameter of the -10 hose end wrench fitting allowing for clearance to the highest point of the arc of the fitting. As long as the base of the -10 threads is 15mm or so above the pan, it will clear the PCV drain.

It's tight but you have the clearance you need, in my opinion.

Good luck.

Mylesofsmyles · #29 02-26-2015, 10:34 AM

Paul. Sorry for the confusion.

I'll forward the picture to Josh, if you haven't done so already.

Hopefully he is satisfied with the picture...he really is a hands on type, and will probably want to measure for himself.

Mylesofsmyles · #30 02-26-2015, 12:21 PM

Just asked two local independent shops. No 617 pans. Damn!