Volvo 2.5T AWD 2003 Automatic delay 3 to 4

[vtl]

Do you know who makes clutches in oregonperformancetransmission's kit? https://www.oregonperformancetransmissi ... SN-RB.html I dropped them an email, but never heard anything back. Thinking whether I better get the kit together by ordering everything separately: Exedy clutches, Transtec gaskets, new AC Delco valve body modded for Volvo AW55.

[firstv70volvo]

Do you know who makes clutches in oregonperformancetransmission's kit? https://www.oregonperformancetransmissi ... SN-RB.html I dropped them an email, but never heard anything back. Thinking whether I better get the kit together by ordering everything separately: Exedy clutches, Transtec gaskets, new AC Delco valve body modded for Volvo AW55.

The frictions I received were Exedy brand but I don't know if they always ship this brand with the kits. Transtec gasket set, which is excellent quality.

[vtl]

The frictions I received were Exedy brand but I don't know if they always ship this brand with the kits. Transtec gasket set, which is excellent quality.

Thank you!

[firstv70volvo]

The frictions I received were Exedy brand but I don't know if they always ship this brand with the kits. Transtec gasket set, which is excellent quality.

Thank you!

They also sent two types of frictions for the direct clutch, two different thicknesses so measure what's in there originally and keep the same. I think the 51SN uses the thinner direct clutch frictions but not every model year. You'll should measure the clutch pack clearance once assembled for all the clutches and this will also tell you if the frictions used are too thin or thick. Just be aware there are some differences in the friction thickness for at least one clutch.

[vtl]

Got my OPT box today. Also got refund for Omega bronze bushings (out of stock). Measured the new OPT oil pump bushing: ID 1.5055". Old one, with relatively a lot of wear marks, has ID 1.4996". Wow... I guess, now it makes no sense ordering the rest of the bushings.

[vtl]

Well, I need a new (to me) front bell housing, my is FUBAR, resleeving won't help.

[firstv70volvo]

Well, I need a new (to me) front bell housing, my is FUBAR, resleeving won't help.

Is the gap between the bearing and case from the outer bearing race spinning in the case? Lube failure?

[vtl]

Well, I need a new (to me) front bell housing, my is FUBAR, resleeving won't help.

Is the gap between the bearing and case from the outer bearing race spinning in the case? Lube failure?

Pay attention also to the guide in the center

Don't know what causes it, but I was told it is pretty common.

[firstv70volvo]

Well, I need a new (to me) front bell housing, my is FUBAR, resleeving won't help.

Is the gap between the bearing and case from the outer bearing race spinning in the case? Lube failure?

Pay attention also to the guide in the center

Don't know what causes it, but I was told it is pretty common.

Yes, I saw the center is badly worn but it's because the bearing bore in the case has opened up or at least is looks that way. I was just wondering if the bearing race is spinning in the case opening and wearing the case bore or if it's something else. One of the two seals between the valve body and case is for lube and I'm wondering if that seal may have got displaced.

[greffel]

You have given me a little bit of hope. I will try to find some time this weekend to check it.
So I just have to find something to push in the hole and measure it.

A good workshop that specialists in gearboxes should have a linger pin if needed i guess..

Yes, a metal or even wooden rod dowel that will fit inside the servo pin bore hole. Push on it firmly to compress the 3rd brake band and mark it carefully on the inside edge of the bridge piece across the opening. I'll be curious what this measurement is as I think it will give you an idea if your way out of spec or not on the servo piston travel. For more accuracy is might be best to taper the end of the rod similar to the servo pin so it fits in the brake band the same.

Edit I've revised the method previously described to simplify and make more accurate.
Here's another method that's probably more accurate and easier. I tried it on another transmission. Just remove the B4 server cover, piston and remove spring then re-insert the servo piston and use the handle of a rubber mallet or anything with a very flat bottom handle to push the piston and compress the 3rd band with the end of the handle. I put a piece of masking tape on the handle to mark the edge of the case when the band is fully compressed. The bottom of the handle must be flat and you need to be sure the handle is pushing on the servo pin in the center of the piston. You then measure, with vernier caliper's, from the bottom of the handle to the mark on the tape, for accuracy this is why the handle bottom needs to be very flat. In my case the distance between the end of the handle and mark was 17.6mm.

You then subtract 12mm from the measured value and this provide the B4 Servo piston travel. 17.6mm - 12mm = 5.6mm based on my measurement. Slightly on the low end of the spec but there will be some measurement error in the process. As the 3rd brake band wears the measured value will increase.

Spec is 5.76mm to 6.76mm so you should expect a measurement using the method described of 17.76mm to 18.76mm to be within spec.
Servo Piston Travel Measurement.jpg

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Hello again
Did the measurement and I got 19.5mm from the edge of the wood to the marking I did with a saw blade.
This was with the piston pushed all the way in and pushing against the small flat surface