What are those little light brown hoses that run net to the water pump? There are four of them and one of the connects to a nipple on top of the engine block under the intake manifold. When taking off my alternator the nut fell down there when I went to pull it up the line broke right at the nipple. Is this a major problem?

 

Those are your oil injection lines... You my friend, have a problem.

 

Great so I will have to tow my car now to Alamo Rotary. How much do you think it will cost to replace these lines?

 

You can drive it to the shop. It shouldnt hurt. The lines are about $20 a pop IIRC from mazdatrix. They are preformed. What sucks is, the labor they are gonna hit you for. You gotta take the UIM off.

 

I went to look at the line and it dosent look like anything ran through it. Does air run through some of the lines or a just oil?

 

just oil.

 

just oil.

 

ok thanks

 

get rid of it and run premix.

 

I was thinking about that but have no Idea on how to do it and I am limited on tools.

 

ok I started the car and it runs with no oil spraying out of the line is this normal?

 

i would think thats bad. what year rx7 do you have.

 

87 n/a

 

ok I fixed it all I did was get a clear little hose and zip tied it to the oil hose and then zip tied it to the peice of hose that is connected to the engine. I started the car and oil ran through it with no leaking. Do you think thes will hold up?

 

well, if you have a 10mm your golden for about 80% of this car.

 

yeah those damn lines are hard to get to and when you do get to them they break. you can get some stainless steel ones from rotorsportsracing.com. i would not rely on the old plastic ones, too damn breakable and to damn expensive for plastic tubing and bolts.

 

hey thanks I am going to get those.

 

Scalliwag is sellin SS ones for $100/set (i think) for 2nd gens. i couldnt find them (in my 5 second search) on rotorsportracing.com, so i dont know their price.

edit: went back and found them in 5 seconds.

Currently available for FD3S 3rd generation 13B engines. $100 a set plus shipping (2 lines). Call to order!

Special orders for 2nd generation FC3S engines also available. $180 a set. (4 lines) Call for details.


contact: Scalliwag

 

Thanks for the plug Cas Yep I do make them. $90 a set of 4 for forum folk, $100 off Ebay. Premixing is great but if you forget you are going to end up with big problems. To get to those lines you have to pull the upper intake. The biggest pain is the vaccuum lines. There are a couple that are just plain pain in the ***. Those are at the back.
When you do this replace the fuel injector seals. They are cheap and easy to do while you are there. Those are usually rock hard and crystalized and it does not take much to cause them to start leaking.
I always push that point because these are responsible for most engine fires on fuel injected cars.
I have popped a lot of hoods on 2nd gens at wrecking yards and seemingly the only reason the car was there was because the wiring harness was melted to the block because of $12 worth of seals

Here are some pics from when I was still working on making a better crimp. The last pic is the final crimp. All the ready made banjo fittings were either too bulky where the lines attach and made for a sloppy looking install or were just too expensive to be practical.