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Hi Paul: While replacing the rack & pinion on my '86 RX7 I noticed
some oil & sludge all over the plastic oil injection lines which
appear to be starting to fail (they are 32 years old after all). I've
looked around and only found one source for $225.00+ a set which
seems a bit excessive so I thought that you might have suggestions
for a cost effective methodology to replace them. I'm planning on
installing a diversion block in order to use 2 cycle oil from a
remote tank so I need to accommodate it, do you have any
suggestions? I've followed your newsletter for some time now and
would like to thank for a wonderful publication, I look forward to
your response!

Bill Bland

You have hit on the major reason Mazda Wankel's fail.
Those nylon lines get brittle after about 10 years and they
crack or break. Then the apex seals do not get the required
oil for cooling.

Mix one ounce per gallon of fuel until you get those replaced.
With a car that old you might not be able to get a new set.

If I were doing it I would replace them with small steel brake line
(hose).

Also contact Richard Sohn he may have some parts.

Richard Sohn <res12@fairpoint.net <mailto:res12@fairpoint.net>>

Paul Lamar


You may want to try a diesel injection supply/repair outlet. Lots of those banjo style lines that size are used for fuel return from injectors. Some use brass banjo's silver soldered to steel line, while other styles have barbs used with plastic line.


Good Luck,
Steve Carlisle


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