Half bridge port on stock ecu.

N.RotaryTech · 10-26-2010, 10:27 AM

Well I knew this day would come.
With only 1,200miles on the motor...
Two main problems that Ive had with this engine, are...
#1 The alternator belts are being eaten away, somehow there miss aligned?
They actually broke on me a few days ago.
Its an S5 alternator on an S4 water pump housing. And there is a large space between the housing and the alternator ear in the rear part of it. I just put a grinded down nut in there to make up the space.
I wonder if that's how all S4 alternator brackets are, being shorter than the alternator.
With my S5 I didn't have this problem.

My solution will come when I rebuild the motor again.
I'm going to swap the front cover, and the water pump housing.
Because I found out that the S4 front cover doesn't go with the S5 water pump housing. So after I built the motor I used the S4 water pump housing.

Which leads me to the second problem...
#2. When I built this motor I didn't spend any money at all. Just reused everything.
Big mistake with coolant seals. Even though they only had 8 miles on them.
The car smokes every time I get it started. And I have had trouble getting it running once it starts.

I think with this rebuild I was more concentrated on the idea of the bridge port than the longevity of the motor.

This next rebuild, I'll do everything better.
It still will be bridge ported.

10-26-2010, 10:27 AM	#1
N.RotaryTech Home-brew Rotary Join Date: Feb 2008 Location: GooseCreek SC Posts: 552 Rep Power: 18	Well I knew this day would come. With only 1,200miles on the motor... Two main problems that Ive had with this engine, are... #1 The alternator belts are being eaten away, somehow there miss aligned? They actually broke on me a few days ago. Its an S5 alternator on an S4 water pump housing. And there is a large space between the housing and the alternator ear in the rear part of it. I just put a grinded down nut in there to make up the space. I wonder if that's how all S4 alternator brackets are, being shorter than the alternator. With my S5 I didn't have this problem. My solution will come when I rebuild the motor again. I'm going to swap the front cover, and the water pump housing. Because I found out that the S4 front cover doesn't go with the S5 water pump housing. So after I built the motor I used the S4 water pump housing. Which leads me to the second problem... #2. When I built this motor I didn't spend any money at all. Just reused everything. Big mistake with coolant seals. Even though they only had 8 miles on them. The car smokes every time I get it started. And I have had trouble getting it running once it starts. I think with this rebuild I was more concentrated on the idea of the bridge port than the longevity of the motor. This next rebuild, I'll do everything better. It still will be bridge ported.