Mazda Rotary Club

General => General Technical => Topic started by: StreetracerHCI on October 29, 2011, 01:13:47 AM

Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on October 29, 2011, 01:13:47 AM
hi guys
Tonight I wanted to drive a little bit with my FD, I put petrol and drive. the engine was already in temperature 80° oil temp. I was not running, I just accelerated a little to the max 3500 4000rpm and I heard a noise, not too strong at a PPUUMMM!!!

since then the engine makes a strange noise like a diesel engine :o

I put two videos to make you feel. Apex Seal Fail?
http://www.youtube.com/user/StreetracerHCI#p/a/u/1/DKsvqujgQ5Q
http://www.youtube.com/user/StreetracerHCI#p/a/u/0/9HXIRELWkzY

the engine 3 years old Rebuild from ReWorx 35k miles :(
I made ​​scrupulous maintenance :Hammer
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on October 29, 2011, 03:02:49 AM
from web search i guess....
 (stationary gear fail)
what do you think?
Title: HELP! Engine problem maybe i need a new engine :(
Post by: jord13b on October 29, 2011, 08:59:42 AM
crikey mate, im not to sure but definatley doesnt sound so normal! :(

do you think its the sound of a broken tip maybe? sounds like it happened very suddenly and only at 3500-4000rmp? cause thats quite low down considering....

i do hope you get it fixed man! :( gutted for ya!
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on October 29, 2011, 01:06:33 PM
my diagnosis is bad when the engine is running, you feel beat (tump,tump,tump,tump) from the center of engine.
Not sure for the apex seal fail.
I guess intermedial shaft or stationary gear fail :(
I think the engine is to be rebuilt. Or take it a new!
Title: HELP! Engine problem maybe i need a new engine :(
Post by: m1tch on October 29, 2011, 02:10:57 PM
I think it should be replaced with this:

(http://farm4.static.flickr.com/3480/3993840227_057d285d95.jpg)
Title: HELP! Engine problem maybe i need a new engine :(
Post by: lee mills on October 29, 2011, 03:11:47 PM
definately sounds like its thrown a tip:(
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on October 29, 2011, 03:15:26 PM
i think so :(

@mitch.. is a dream that engine. But now i have only 800€ :(
Title: HELP! Engine problem maybe i need a new engine :(
Post by: jord13b on October 29, 2011, 05:06:40 PM
Quote from: m1tch;796560I think it should be replaced with this:

(http://farm4.static.flickr.com/3480/3993840227_057d285d95.jpg)

is that yours mitch???:god
Title: HELP! Engine problem maybe i need a new engine :(
Post by: m1tch on October 29, 2011, 07:21:16 PM
I wish lol although the turbo is about the same size as I have in the garage lol
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on October 29, 2011, 07:25:41 PM
some advice on where I can find a new engine? Rotary Art haves and complete Block for 7000â,¬ shipped ha ha :Hammer



   I could die :o
Title: HELP! Engine problem maybe i need a new engine :(
Post by: m1tch on October 29, 2011, 07:26:36 PM
Just post up a wanted thread, there is usually someone on here breaking an FD or has a spare engine!
Title: HELP! Engine problem maybe i need a new engine :(
Post by: lee mills on October 29, 2011, 07:42:52 PM
Quote from: StreetracerHCI;796579some advice on where I can find a new engine? Rotary Art haves and complete Block for 7000â,¬ shipped ha ha :Hammer
 
 
 
I could die :o

 
Speek to Laeeq hes got a streetported block for sale:Thumbs-up
Title: HELP! Engine problem maybe i need a new engine :(
Post by: rx7boy on October 29, 2011, 07:43:46 PM
Give Steve Rivett a call, he has done a few rebuilds for overseas customers and is very well priced :) however I believe he has to have the car.
Title: HELP! Engine problem maybe i need a new engine :(
Post by: lee mills on October 29, 2011, 07:45:01 PM
http://www.mazdarotaryclub.com/forums/showthread.php?t=68973:Thumbs-up
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on October 29, 2011, 08:13:53 PM
thx guy\'s:Ladys-man
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on November 06, 2011, 12:18:11 AM
updates:
 performed compression testing done, the sound is clean and strong and shows a good compression of the apex.

watch the video and give me an opinion

FRONT Rotor
http://www.youtube.com/user/Streetra.../0/FAvwvW6r4Pc (http://www.youtube.com/user/StreetracerHCI?feature=mhee#p/a/u/0/FAvwvW6r4Pc)

REAR Rotor
http://www.youtube.com/user/Streetra.../1/eoobjJmUzY4 (http://www.youtube.com/user/StreetracerHCI?feature=mhee#p/a/u/1/eoobjJmUzY4)
Title: HELP! Engine problem maybe i need a new engine :(
Post by: CharlieP on November 06, 2011, 04:39:18 PM
I have a block that was recently rebuilt if you end up needing an engine
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on November 06, 2011, 05:45:31 PM
Quote from: CharlieP;797726I have a block that was recently rebuilt if you end up needing an engine

please send me the ALL details for the moment to PM

parts changes
Rebuild by
km or miles

thx Charli :Thumbs-up
Title: HELP! Engine problem maybe i need a new engine :(
Post by: fil_auto on November 07, 2011, 05:04:33 PM
That does sound all good, fine n dandy to the untrained ear, both rotors...... think the prob lies elsewhere :)

Quote from: StreetracerHCI;797665updates:
 performed compression testing done, the sound is clean and strong and shows a good compression of the apex.

watch the video and give me an opinion

FRONT Rotor
http://www.youtube.com/user/Streetra.../0/FAvwvW6r4Pc (http://www.youtube.com/user/StreetracerHCI?feature=mhee#p/a/u/0/FAvwvW6r4Pc)

REAR Rotor
http://www.youtube.com/user/Streetra.../1/eoobjJmUzY4 (http://www.youtube.com/user/StreetracerHCI?feature=mhee#p/a/u/1/eoobjJmUzY4)
Title: HELP! Engine problem maybe i need a new engine :(
Post by: fil_auto on November 07, 2011, 05:06:53 PM
could it be to do with the eccentric shaft? oil starvation... bearing on the way out?
Tuner input welcome... Hayward??
Good luck and fingers crossed it\'s not the worst.... :)
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on November 07, 2011, 09:33:33 PM
Quote from: fil_auto;797818could it be to do with the eccentric shaft? oil starvation... bearing on the way out?
Tuner input welcome... Hayward??
Good luck and fingers crossed it\'s not the worst.... :)

I still have to do these checks, I hope it\'s something in the area behind the gear box.
if it has them all in order, so I\'ll have to worry for eccentric shaft, bearing or more :2Confused

anyone input by Hayward, still have not read, at least i think :confused:
Title: 35k
Post by: Rotary FD on November 08, 2011, 05:58:33 AM
That is really bad news mate. However, the engine has only done 35K. Is that not a little quick for the engine to go?????? :xconfused

Did you change the oil, filter and spark plugs often enough??
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on November 08, 2011, 06:56:25 AM
Quote from: Rotary FD;797903That is really bad news mate. However, the engine has only done 35K. Is that not a little quick for the engine to go?????? :xconfused

Did you change the oil, filter and spark plugs often enough??

Mate, What can I say :(
I bought the car and I immediately changed the oil and filter, I have covered only 1500k miles. After, I changed the oil/filter again and spark plugs, spark plugs wires covered only 400/500km and I heard a noise as if something had dropped.
the car run fine no smoke, no loss of power, but you hear that noise that you saw in the video.

after my maintenance, the car was really strong, combustion was better because it was not a lot more  flames from the exhaust or smoke of unburned gas. is also why I decided to change spark plugs and spark plugs wires.  it was much improved :Yawn


Title: HELP! Engine problem maybe i need a new engine :(
Post by: HaywardRotary on November 08, 2011, 08:44:34 AM
That sounds like an apex seal has been damaged to me. Highly unlikely to be a stationary gear broken as they are as good as competition gears in the FD RX7.
If oil pressure is good then not too liklely to bearings either.
Regards
Carl
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on November 08, 2011, 09:34:50 AM
Quote from: HaywardRotary;797915That sounds like an apex seal has been damaged to me. Highly unlikely to be a stationary gear broken as they are as good as competition gears in the FD RX7.
If oil pressure is good then not too liklely to bearings either.
Regards
Carl

thx Carl for your valuable response,
the oil pressure is ok is the same as always,  even if the test done by me for the compression is in good standing by sound pfft,pfft,pfft,pfft.

I resign myself to be a problem on apex seal? :o
Title: HELP! Engine problem maybe i need a new engine :(
Post by: billybobbooth on November 09, 2011, 03:40:18 PM
soundsmore like a bearing, if pistonlump came to me sounding like that i would point it to a bearing but this is a rex but if power ect fels good then i would put it down to bearing best is to do compretion check see what you get this wy you know if its bad bad or just bad, as alot of it maybe able to be saved.
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on November 13, 2011, 04:12:44 PM
and if it were a problem around the clutch? when I heard that noise (TUMMMP) was very similar to something that was dropped
Title: HELP! Engine problem maybe i need a new engine :(
Post by: tyson23 on November 13, 2011, 06:44:26 PM
defo sounds like a tip also sounds a bit like a bearing has gone that could of thrown tip
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on November 14, 2011, 07:15:12 PM
who can get in touch with Charlie?
 had an engine, but I can not send private messages
Title: HELP! Engine problem maybe i need a new engine :(
Post by: StreetracerHCI on November 21, 2011, 10:30:54 PM
UPDATE another TEST: I not find any visible issues.
the worst thing is that while doing the tests, the situation has worsened. I heard another tuump!
and the noise has increased, now a thump thump feels good cyclical.
the noise coming from the front cover near the alternator and water pump, all pulley ok run well without oscillations.

I think is the oilpump issues ? Chain? Gear chain?  The oil press on my  defy at 80c is 3 3,5 bar max. The sensor installed on oil filter plate  greddy
Title: HELP! Engine problem maybe i need a new engine :(
Post by: DR SCHNITZEL on November 21, 2011, 10:54:25 PM
sounds like a chipped tip. still giving compression but ticking against the housing as it spins. when it fully lets go it will be like a tractor. get a real compression test. the 1st housing was weaker in the vids
Title: HELP! Engine problem maybe i need a new engine :(
Post by: DR SCHNITZEL on November 21, 2011, 11:02:31 PM
Also its not unusual for turboed rotaries engines to go at ANY mileage. Id consider 35k on one engine fantastic as ive never had more than 5k out of mine. Consoltaion is you can do a CHEAP REBUILD YOURSELF WHICH IS VERY SATISFYING AND WILL COST YOU ABOUT 600 TO 1000 EUROS. SORRY ABOUT THE CAPS