just got engine rebuild but it seems to me that its slower now is it because it needs to break in first i meean drive for a couple of miles or maybe they did a bad job on it does anybody now why??????

 

Everyone here will undoubtely have their own opinion regarding break-in mileage and how to properly break in a freshly rebuilt motor. Mine is minimum 1000 miles and vary the freeway speed during the break in period. Change oil after first 250 miles and then change oil every 500 miles until you hit the 1250 or 1300 mile mark. Then assume normal oil change schedules.

Brian
'04 RX8
'90 Turbo Vert
'04 Tribute

 

You should not be beating on a rebuilt engine until it has broken in. This means easy driving for at least 1000KM/Miles then gradually increasing the amount of abuse over the next few hundred KM/Miles.

If the rebuild re-used housings it can take a while for the compression to come up to spec as well.

 

I rebuild my engine like a month ago and it seems that i have lost power am not sure if it's because it needs to break in or because before the rebuild i didn't have a power steering belt????? does anybody might know why???

 

what is the compression?

and your multiple threads all on the same subject have been merged.

Please only start one thread on a subject

 

dont know how do you find out?

 

You rebuilt your motor...?