Mazda Rotary Club

General => General Technical => Anything Engine/Performance/Tuning related => Topic started by: royal on February 24, 2008, 09:13:08 PM

Title: Engine diagnosis advice?
Post by: royal on February 24, 2008, 09:13:08 PM
I\'ll stick some phots up in the thread once I get them off my blackberry but in the meantime wondered if anyone had any words of wisdom?

 The engine went at Silverstone on the circuit. I managed to drive it 150 miles home. It had next to no power and I had to keep reving it to keep it going. Once it stood over night I couldn\'t start it again since.
 I didn\'t get it compression tested as I don\'t have the rotary ones plus my piston one has broken. :(  Lying underneath it and listening with a plug pulled out and it was quite obviously different on the rear rotor and the front sounded \'normal\' as far as I could tell rhythm wise. The plugs all looked normal by the way, grey/white colour.
 I managed to find a couple of hours to pull the engine out of the car today and had a look through the exhaust holes at the rotors. From watching the tips as they pass the holes everything looks ok :confused: I was at least expecting one or two broken ones? Is it likely that an edge has gone that I can\'t see?
 Need to get myself a 54mm socket and I\'ll start stripping it down. Everything pointed to a tip having gone but I\'m a bit worried now that it might have been something else!?
Title: Engine diagnosis advice?
Post by: interloper393 on February 24, 2008, 09:31:55 PM
a couple of hours to pull the engine? how u do that lol..dynamite?

It does sound like the symptons of a lost tip...
Title: Engine diagnosis advice?
Post by: royal on February 24, 2008, 09:38:08 PM
Ah, I started the last sunday (i think) and stripped the engine bay but got stuck splitting the engine from the gearbox. Havn\'t had a chance to finish it since. Only needed to remove 6 bolts from the clutch cover and I was away.
Title: Engine diagnosis advice?
Post by: nikp on February 24, 2008, 10:24:33 PM
Mine too looked ok when looking through the exhaust ports. But when stripped it was quite a mess on the rear rotor/housing. Also had sucked some bits into the front rotor, but in general that one is fine.

So diagnosis through exhaust ports not necassarily the way to go.

Cheers
Title: Engine diagnosis advice?
Post by: royal on February 24, 2008, 10:44:16 PM
Ah right,thats good to hear (in a bad way :) ). Glad I\'m not the only ones thats had it lol.