I'm in the process of installing a set of OEM dual oil coolers in my '93 touring. So far I've sourced the following components:

Both coolers
Mounting brackets
Ducts
Some lines
4 clips to connect lines to coolers

Looking at some of the other posts on the topic it seems that I may not have all the lines I need. What I have, apart from the stock single oil cooler lines currently on the car is this 3-piece set of lines that appears to be missing some connections in the middle.

The ends appear to connect to the respective coolers (which of the lines connects to which port on the coolers isn't immediately obvious when they're not on the car and my shop manual does not show the R1 layout).

Can anyone tell me if I need additional piping or if I can use the plumbing from my touring to augment what I've got here? Also if anyone has a diagram showing which line connects to which port on each cooler that'd be great too.

Thanks!

 

Anyone?

 

Without looking at my own car I'd say there's a flexible line on the left side that connects to the engine block. I think you can re-use the flexible line that is already on your touring for the right side.

EDIT : Now that I think about it they may not be flexible but there are two lines that extend from the hard lines, you can re-use the one on the right but not the left.

 

Dual setup pictured here:



Part 14-7201 is the same on both on single and dual setups.

 

You need two flexible oil lines to connect between your hard lines and engine block. Part No. N3A1-14-710B replaces N3A2-14-710B of single setup. Reuse N3a1-14-720B on other side as this is common to both setups.

Page from '94 Parts Manual enclosed, Hard Suspension = R2.

PS: Is it just me that has problesm with the 100KB file size limitation

 

Thanks guys, so part 14-7210 is the shorter of the two lines and I'm assuming is the return line? Now I just gotta FIND one of them before Saturday!

 

The real PN is N3A1-14-710B, use this with dealer; 14-7102 is the picture description No. only, the way the Parts catalog works is: find the description no. in the diagram then look up the applicable PN from the list. My attachment has the list included. I assume you have both engine block banjo bolts and washers still.

 

Thanks, I have all the original touring oil cooler hardware still on the car -- I assume that all the bolts are the same.

The stealership quoted me over $200 for the 14-710B pipe which seems fairly ridiculous as Fd3s.net says it was $52 and that I got the oil coolers, brackets, ducts and all the other lines pictured above for less than the cost of that one stubby pipe. Arrgh.

 

It is $98 on Mazdapartscheap.com and I presume Ray at Malloy Mazda would be the same or cheaper (and would not charge shipping).

 

Malloy to the rescue, they had the part in stock for around 70-80 bux!!!

 

Heh yea I called Ray twice today but he wasn't around so it went straight to voicemail. I was getting desperate as I needed this ASAP. I talked to one of the other guys there just now and they hooked me up.

 

For those of you who have done the second R1 cooler upgrade, did you remove your bumper to do it or is it possible to install the cooler and lines from behind by just removing the undertray/panels? The shop manual for my touring only mentions removing the headlight bezel.

Giving myself the whole weekend for this, hopefully it doesn't take that long as I have a bunch of other things I need to do too!

 

How did it turn out? I'm looking for info on the install. I'm about to do it myself and was wondering what's involved as far as what I have to remove.

Thanks,
Jeremy

 

greatest DIY dual oil cooler thread ever.

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/what-else-do-i-need-build-dual-oilcooler-setup-527044/

 

What about the R1 install? I've got a touring and I bought an R1 setup from a member here. I guess I just need to get in there and figure it out.

Thanks,
Jeremy

 

Allow yourself a weekend. You will have to remove the front bumper (at least for aftermarket coolers you do). It's a PITA but doesn't require any great mechanical skills -- hey I did it!

 

I installed stock r1 oil coolers on my touring without removing the bumper, but the passenger side cooler probably isn't mounted as well as it could be. If I wasn't lazy I probably would have done a better job without the bumper, but its definetly possible to do with the bumper on.

 

The installation of the cooler is very easy if you have the right hardware. You do not need to remove the bumper if you're installing a R1 cooler on the passenger side. There's no difference for the driver's side unit so just leave it alone. Pop up the headlights and remove the passenger size bezel to access some of the mounting points of the cooler. You'll want to remove the front part of the passenger side fenderliner as well as the undertray. The hard part is snaking the big oil line that connects both coolers together. That thing was the biggest PITA. All in all I'd say it only took 4 hours to complete the job though. If you don't have the special bracket to mount the second cooler you'll need to fabricate something. I just used some metal strapping and bent it/drilled it appropriately to support the cooler.

 

Just tagging this thread because out of all the threads that my search ("oil cooler install") returned, this is the one that helped me the most. Might even be worthy of the archive, IMO.
The part number for the return line, which I'm sure a lot of people have and will be looking for, was nice to find.

 

^here is my vote for an achive thread if we are voting

this thread is helpful for stock dual set-up and the above is helpful for upgraded dualers

 

just to be helpful re two oil coolers i thought i would post a link to my thread:

"Dual Oil Coolers Cheap"

https://www.rx7club.com/showthread.p...al+oil+coolers

(cheap is $179 plus a driver's side OEM cooler you can get for between free and $50 all day. i use dash 8 lines as there are plenty of restrictions in the OEM system that are that I D or smaller... so why use big clunky lines.

my oil pressure is unchanged V stock w the dash 8.

the key on the thread is a parts list so you can just order exactly what you need. i had posted i would do an install picture study and it appears late in the thread.

so for you DIY-ers... enjoy.

howard coleman

 

just to make sure, if i have the stock R1 lines all i have to get to covert my single cooler setup is Part No. N3A1-14-710B , which colled the dual set up to the engine block?

 

also do i need the part number 14-622 which seems to be a fitt for the hardline from teh dual cooler setup to the hard line to the engine block?

 

If you have all the r1 lines, you won't need to buy any new ones at all. In my case I had the big set of lines that go from the passenger-to-driver-side cooler, but not the r1 line that connects to the block. You won't need the 14-622 part, that whole line remains unchanged because you're not doing anything to the driver side cooler.