Accusump install

[itsnotanova]

A five chain motor with the big bearing? Didn't know that existed

[AZ986S]

Originally Posted by itsnotanova

A five chain motor with the big bearing? Didn't know that existed

Did the 3.2 not come in the 3 chain configuration? I'm thinking that is what I have.

[itsnotanova]

Originally Posted by AZ986S

Did the 3.2 not come in the 3 chain configuration? I'm thinking that is what I have.

Yes but unless I missed something you have a 5 chain boxster. I've had a customer put a M97 motor in a 03(first year of the 3 chain) boxster and it wasn't easy. I'd imagine putting one in a 2002 would be even harder. You said this motor came out of a 2000 which would sound near impossible to me.

[AZ986S]

OK so I just got back from the shop.

It looks like the factory re-manufactured 3.2 engine that was pulled from the donor 2000 Boxster S had the M97 bottom end with larger IMS single row bearing but still has the original Variocam. The fuel rails had the integrated pressure regulator and so had to be swapped with the ones on the pulled engine since the 2002 Boxster S has the regulator on the fuel pump. They also swapped the injectors since they were blue instead of white (what's the difference?).

I have not looked a the intake, but apparently the M97 3.2 makes 280 HP with a larger airbox, larger exhaust and intake. So hopefully the 7.2 DME will drive this engine correctly.

I did read from the Pelican article on Boxster engine swaps that the M97 3.2 (not reman) requires the use of the 7.8 DME, wiring and DME pin changes. That appears to not be the case here with my swap so far. So that is probably what you are referring to Woody for your customer having a hard time with his swap...

More to come...

[JFP in PA]

Originally Posted by AZ986S

OK so I just got back from the shop.

It looks like the factory re-manufactured 3.2 engine that was pulled from the donor 2000 Boxster S had the M97 bottom end with larger IMS single row bearing but still has the original Variocam. The fuel rails had the integrated pressure regulator and so had to be swapped with the ones on the pulled engine since the 2002 Boxster S has the regulator on the fuel pump. They also swapped the injectors since they were blue instead of white (what's the difference?).

I have not looked a the intake, but apparently the M97 3.2 makes 280 HP with a larger airbox, larger exhaust and intake. So hopefully the 7.2 DME will drive this engine correctly.

I did read from the Pelican article on Boxster engine swaps that the M97 3.2 (not reman) requires the use of the 7.8 DME, wiring and DME pin changes. That appears to not be the case here with my swap so far. So that is probably what you are referring to Woody for your customer having a hard time with his swap...

More to come...

Check the engine number on the sump rail; willing to be it has an "AT" in it, but the numbers will tell you what year it was designed for.

[AZ986S]

Update on the engine failure.

I got the car back yesterday
The new (used) engine is running perfectly.
Oil pressure is as you would expect, and the most important is that it is back to normal values.

I set up the pulled engine on a stand today and the first thing I did was pull both scavenge pumps to see if they turn without effort or binding, and if there is any obvious damage. The reason for this is that valve keeper-like debris and other unidentified debris showed up in the bottom of my engine oil sump.

Bank 1: pump seemed to rotate by hand with little effort, but it would bind slightly every turn. That is not good to me. Should it not be a smooth rotation?

Bank 2: this is the suspect bank. When I pulled the pump, it will not turn by hand at all. I did not try to use a tool, but, obviously it turns otherwise the drive key would have sheared off. Then I looked inside the inlet side, and you can see damage from debris being ingested.

Here's a photo of that:



I plan on doing a leakdown test first and will pull the valve covers and inspect.

Best case: top end (head) rebuild?

Worst case: complete rebuild

As mentioned in earlier posts, the engine ran fine with no noises. The only issue I was chasing was low oil pressure at idle. Obviously, this was a ticking time bomb and I caught it in time to minimize damage.

I've done some work on engines, but never have touched an M96 (rebuild).

[AZ986S]

Originally Posted by JFP in PA

Check the engine number on the sump rail; willing to be it has an "AT" in it, but the numbers will tell you what year it was designed for.

I looked this evening and could not find any markings around the sump. Where are the numbers located? Not on the sump plate itself I hope?

[JFP in PA]

Originally Posted by AZ986S

I looked this evening and could not find any markings around the sump. Where are the numbers located? Not on the sump plate itself I hope?

[JFP in PA]

Originally Posted by itsnotanova

A five chain motor with the big bearing? Didn't know that existed

It doesn't..............