zerrorx7

welll my s5 engine has over 2000miles on it and since iv had it been shaking...and i alway thought it was my timing.....so i got someone with lots of experince to do it and he said it was a biy off,,,however its still shaking...so i did a comp test and its good(willn have numbers later) he told me tht it be the housing which may had some lines...he said it may not be....so i just thought i would ask anybody here what i could try to slove my prob....its an stock 89 na

thanks

zerrorx7

okay heres the numbers from a mazda tester
rotor#1
http://img464.imageshack.us/full.php...ture0531vj.jpg
rotor#2
http://img464.imageshack.us/full.php...ture0566ng.jpg

RotaryResurrection

iTrader: (8)

What in the hell did you just say?

FC or S13

Good compression on the chambers should be 85 all around

RotaryResurrection

iTrader: (8)

If the test was done correctly, those numbers are quite low. Mazda minimum spec for a decent engine is 85psi, as you can see you are below that by quite a bit, it appears 75psi and lower all around.

R.P.M.

iTrader: (3)

Shaking like how.....like when it's idling or when it driving down the road in the rpm's?

Who built the motor? Did they use the properly weight matched rotors? Are your motor mounts any good?

zerrorx7

yes it shakes when its idling only...and it runs reallly goood other then tht....and the engine mounts have seen better days...
well being at 75 psi what im i lookin at as for time....how long do u think she will go for...
sorry if its hard to read....no english

RotaryResurrection

iTrader: (8)

I'd say you've got 1-6 months.