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A trick I used to do the B4 servo cover update

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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A trick I used to do the B4 servo cover update

Post by Rocambolesque » Sat Jun 16, 2018 8:03 pm

As you might know, doing the B4 shift servo update on 5-speed auto AW55-50 cars can be a little difficult because of the snap ring. When putting everything back together, you need to push down on the spring-loaded cover (1st hand), hold the snap ring (2nd hand) and hold the snap-ring pliers (3rd hand). Unless you have 3 hands, it's tough and you need a special trick to do this. Some people modified c-clamps, but I did something else.

I put a M10x1.5 bolt in the bottom-rear hole in the transmission and used it for leverage with a long screwdriver to push the cover. Then when the cover was in it's place and I was ready to put the snap ring, I used the car's wheel to hold the screwdriver in place:

Obviously this only works if you do this on the ground and you don't jack the car too high.

It took me about an hour to do the servo cover update with minimal swearing. Shift quality has improved.

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