Johnf7

First post and Im hoping somebody can help me!!
During my rebuild I have been finding bits of contamination in my oil system and have no idea what it is.

I have found some bits in the oil pick up
I also found a piece in the oil jet for the rear rotor, it was wedged against the ball bearing and restricting oil flow hugely....

Here is a pic of it wedged:


And a couple of various pics of the hard plastic pieces:








Oil and filter change was carried out about 700miles prior to engine going pop.
30k miles on the engine.
stock twins with aftermarket exhaust and filters

Anybody got suggestions???
I am going to blow out all the oil lines etc but would really like to know the source

Thanks
J

mono4lamar

iTrader: (32)

Looks like injector diffusers to me... Then engine is done? Your tearing it apart now?

Johnf7

Thanks! Ill take a closer look at the injectors
I have new injectors anyways....
Why do you think the injector diffusers would break up like that? there is only 30k on them....


Yes the engine is stripped apart. The engine DET'd on the rear rotor causing one of the apex seals to stick
I recon the poor oil feed may have helped DET to occur


Also there was a lot of scoring marks on the rotor housings and rotors even though the apex seal did not break up

Anybody else got some suggestions??

Johnf7

I wont be able to check the injectors till this weekend, But if anybody has any other suggestions I would really appreciate it!

Really want to get this sorted!!

Thanks
J

SPICcnmGT

And how is the injector diffuser going to get into the oil system??

Herblenny

iTrader: (13)

The question is... how did your engine blow?? low compression or did your engine seize?

Johnf7

Pictures of engine failure below:


Detonation on Rear Rotor, the Apex seal did not break up. It was pushed back by the rotor material causing loss of compression
Another pic:



I think DET occured because of boost Spike. The car was de-cated, I only had the car for a few months and the heat shield was put back on so never noticed the straight through pipe
Also the restricted oil to the rear rotor wouldnt have helped the situation.

Im new to rotaries so still learing here!!

Thanks guys!!