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Volvo Maintenance Hints for 7xx/9xx - Bill Garland's Nuclear ...

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● <strong>Volvo</strong> flywheel lock. You can also hold the crankshaft with a breaker bar and socket on<br />

the bolt that holds the harmonic balancer on the front of the crank, or use the 5284<br />

crankhold tool. This will let you loosen the flex plate bolts without the crank turning.<br />

3. The parts you need are not too expensive. the new oil seal at NAPA was about $20 (I<br />

found them cheaper at our local discount chain but they would have to be ordered) and<br />

so I paid the $20. While you're under there with the tranny fluid drained, replace the fluid<br />

and the the filter and the pan gasket (another $15 kit). I also replaced the front seal of the<br />

tranny (pump seal) while I had it out. It was not leaking, that I could tell, but it, like the<br />

engine oil seal is a bear to get to and so I did the tranny seal too while I was in there. All<br />

together, I think I spent $50 on parts and fluid. Not sure if the $350 at the shop included<br />

the parts or not. Also, make sure you know what model tranny you have be<strong>for</strong>e you go to<br />

the parts store. Ours has a plate riveted on the side of the tranny on the drivers side I<br />

bought tranny pump seals <strong>for</strong> both types and used the one that fit. It can be (was in my<br />

case) a messy job. Even after draining the pan and the cooling lines, etc etc the tranny<br />

dripped oil all over me and the floor the whole time I was under there. next time I'll be<br />

prepared with a short length of fuel hose to cap the two nipples after I remove the lines<br />

that run up to the radiator. My book talks about the "option" of removing the exhaust. I<br />

took it off and had lots more room to work. I also completely removed the lines at the<br />

tranny and at the radiator. not hard to do these 2 things and gives you lots more room.<br />

The two top bolts that secure the tranny to the back of the engine block and the top<br />

starter bolt are bears to get to. 18 mm. I had to drop the tranny crossmember at the rear<br />

of the tranny/engine assembly down so that the angle would allow me access to those<br />

bolts. Really tough: required a couple of long extensions to get the ratchet back far<br />

enough to have room to use it. Support the engine with a jack stand or transmission jack.<br />

After you get the tranny out, MARK THE FLEXPLATE ORIENTATION so you can reinstall<br />

it correctly. When you finally get access to the back of the crank where the seal (and the<br />

leak is), you will need a small hook tool (or similar) to get the old seal out of its housing.<br />

The seal sits in a housing that you can take off if you need to (make sure your engine oil<br />

seal comes with the gasket <strong>for</strong> this housing). I was able to get the old seal out without<br />

taking off the housing. [Randy Starkie] The large rear main seals are easy to remove with<br />

a screwdriver, as long as you don't scratch the surface of the crank that comes in contact<br />

with the rear main seal. Insert the screwdriver so that the exposed back surface of the<br />

crankshaft (the part that comes in contact with the flexplate)is the prying point. Get the<br />

end of the screw driver up into the old seal and pry it out. Double check the surface of the<br />

crank be<strong>for</strong>e inserting the new seal. I usually go over mine with light abrasive cloth and<br />

check visually and with your finger <strong>for</strong> sharp edges. Lacquer thinner is helpful in removing<br />

buildup and stray abrasive material be<strong>for</strong>e installation of the seal. Grease the inside of the<br />

seal (but not the metal outside ring) and the crank with white lithium grease. Be careful<br />

not to get the edge of the lip hung up on the crankend when getting the new seal started.<br />

Get it started and then push the seal against the started edge to get the room you need to<br />

get it started all the way around. Once the seal is on the surface of the crank ALL THE<br />

WAY AROUND you you tap it into place evenly by working your way around the seal with<br />

your striking tool. A 3/8 or 1/2 socket extension allows you to direct the contact on the<br />

seal once it is started into place. [Chris] Don't push it in too far so that it slips out the back<br />

side of the housing. If that happens, remove the housing and do it right again, using a<br />

new housing gasket on reinstallation. Most oil seals that I've dealt with had lips in the

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