Okay...the oil cooler line on the block is shot. The nut is impossible to get a socket or wrench on there. It will be a lot easier to get to when my motor is pulled. Can I just cut it off(the metal line before the but in between the cooler and block). Then get it off after I sand down the edges a little to get the nut off. I planned on replacing my lines anyway. Is the nut replacable? For example I plan to get the set from Mazdatrix. Thanks in advance.

 

It must be the front line your talking about. No the nut, if your talking about the one where it meets the block, is not replacable. Its part of the hose assy. Its a "B" nut. I hate to see you have to cut the line and ruin it. I use a inch and one eighth MAC plumbing wrench to loosen it. I hold the union it is attached to with a 13/16 ths.

Have you even gotten the B nut loose at the front of the block?

 

No, the one on the back of the block. Not the front cover oil line, I got that one of using vice grips and and 21mm wrench. The metal oil line that goes to the block on the rear right side is my problem. The nut is in bad shape and I cannot fit a 23mm wrench or socket on it, the angle is terrible. I might be able to fit it on after the block is pulled, but I am not sure.

 

C'mon! Bump

 

reach the back one from underneith.

If you remove the lower engine cover, and climb under the car its is very very easy to get too.

 

Well see the nut is, warped...like the previous owner chewed it up with their wrench so i need to grind away the rough spots so I can actually fit the 23mm socket on it. But can I replace that line from the ones from mazdatrix? Get rid the of the metal one for a steel braided one?

 

yes

 

Or you can make your own hose. Get the parts from Pegaseus at http://www.pegasusautoracing.com/ but if you went that way you'd have to buy the adapters for the front and rear housings.
http://www.pegasusautoracing.com/pdfs/068.pdf
http://www.mazdatrix.com/b6.htm

 

Anyone have the exact parts needed for making the lines?

 

***Anyone have the exact parts needed for making the lines?****
1.http://www.pegasusautoracing.com/pdfs/068.pdf the hose and fittings.

2.http://www.mazdatrix.com/b6.htm the 11902 unions

What part of those sites do you not understand?

3. Both places ship like bandits.

 

Go to a local hydraulic shop and have them make you some, loots cheaper

 

I'll spell it out, how many feet/inches or as an example do you cut the new hoses a few inches longer to account for the bending? 1 straight end and 3 45's by the pictures seems approporate.

Was just hoping that someone who has done it would help fellow rx'ers instead of everyone having to go through the trial and error. I am sure someone who has made the oil lines has encountered something they could share to help the community.

 

Ahh ****, new problem! Now I can't remove the line from the oil cooler. The oil cooler and mounts start flex thus this doesnt allow me to get the amount of torque to the bolts.......sheet. Any suggestions?

 

most oil cooler lines will tear when you try to take them off....so i hear....so i have seen as well....when you start twisting it the line will bend as well, and it WILL break..
you probally need new lines anyway...

mine somehow unscrewed perfectly on sunday....makes me happy....although i should replace them, i dont think i will so i can spend that 150 on something else

 

About the oil cooler hose not coming off: try this, and I know it ain't easy. Put your wrench on it all the way. Now strike the wrench with a hammer. The shock works like an impact wrench, just slower. I did it that way this last weekend.

About hose length. I just installed a second oil cooler while replacing the original hose on one of my cars.

Just measure the lines you have. Add up the inches and add an extra foot for mistakes. That's basicaly what I did and then ordered the fittings from Mazdatrix and the hose and AN fittings from Pegauses.

You need to order a nintey degree Aeroquip HOSE end for the rear housing and a forty five degree Aeroquip HOSE end for the front housing. To connect the hose to the cooler, you'd just need two straight number 10 Aeroquip ends.

My concoction for the oil cooler is different than a normal installation. I used two 10 AN tees for the in and out of the primary oil cooler.

Just from memory I'd say that you'd need two forty five degree, number 10 AN fittings for the in and out of the oil cooler. Those fittings I mention are the Aeroquip ones.

You need to buy two of the Mazdatrix fittings to screw into the oil cooler to match the Aeroquip AN fittings.

In other words...the stock unions on the stock block won't work. They are not AN fittings. Same with the stock unions in the oil cooler. They have to be replaced with the adapters from Mazdatrix.

Once the fittings are screwed into the cooler and the block, I just routed the bare hose from one place to the other, allowed for obstructions and wrapped the hose with electrical tape and cut it using a fine tooth hacksaw and a Dremel motor to clean up any metal strands. Just remember, to cut a bit long is a darn site better than cutting too short.
Although expensive, it had its rewards. Did it myself and didn't have so much as a drip after the installation.

I ordered ten feet of hose. I have 30.5 inches left over.
The Mazdatrix hose, braided, is 19 inches long from end to end for the front one and the rear hose is thirty inches long. Those are the Mazdatrix hose/braided steel. I've got a set of brand new ones laying in the garage. Useless I put them on the other car.

 

Hailers - I've just decided to go twin oil coolers on my road racing TII. Can you post a pic of your setup or describe the plumbing of your pair (basically what you left out above).

Thanks & Cheers, Jason

 

HAILERS: Great info, just what the doctor ordered. Had I not read that I would have been short on my hose purchase!

Thanks!!!

 

Mr. Gadget
That's not real clear, what I wrote above.
1. You need to replace the two unions that are now in the block. Those you get from Mazdatrix.
2. If you use the Aeroquip hose and fittings, you also need to replace the two fittings in the oil cooler. The original are NOT AN type fittings.
3. I used a forty five degree HOSE fitting on the rear of the block. A ninty degree would be even better.
4. I used a forty five degree HOSE fitting on the front housing. Perfect.
5. You need to think about the oil cooler and what kind of HOSE fitting you need. My installation at the oil cooler is NOT normal. I have two tees in both fittings. A normal car would probably use two 90 degree elbows shown in this: http://www.pegasusautoracing.com/pdfs/071.pdf

You need those two so you can have two straight HOSE fittings on each of your hose at the oil cooler.

These parts are expensive. Its not a cheap avenue. I did it just for something to do and see how hose are put together. Its a hobby for me. Its cheaper to buy the hose from Mazdatrix already made up (for an stock installation).

I have no pictures and no camera. If it would fit on my scanner.....I'd scan it. I'm copycatting a second oil cooler install I saw on this site a couple of weeks ago(Sorry, can't remember you name right now, thank you).

My second cooler is in front of the original. Canted at an angle. I welded some brackets and mounted the bkts from some threaded holes that were already in the structure. Two on each side and above the oil cooler(the threaded holes). Used stock oil cooler rubber mounts to mount it to the brackets. The cooler cost me twenty bucks at Apple wreckyard. I know none of this is clear. Only a picture would do justice to this fine, most excellent installation.

 

Here: Cris Lugwig https://www.rx7club.com/forum/showth...ual+oil+cooler

 

pics in link no workey!

 

I took them down. Email me and I'll send you the files.

cludwig2@insightbb.com