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#1 09-14-2015 10:28:11

james
Rookie
Registered: 10-05-2008
Posts: 90

upper bellhousing bolts

DOH ---

I spun the mains on my 96, so, now I'm trying to take the engine out.

I've got it down to a naked short-block .... with the exception of those 2 3/8 inch 12 point capscrews at the top of the bellhousing.

so far I've managed to mangle them a bit, but, no loosening detected. Anybody near the Minneapolis Metro have experience with this challenge ? I'd happily spring for a 5 pack !!!!

any advice ?

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09-14-2015 10:28:11

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Re: upper bellhousing bolts

#2 09-14-2015 10:53:17

evad
Enthusiast
Registered: 10-05-2008
Posts: 240

Re: upper bellhousing bolts

Are you sure that they are 12 point capscrews?
Do they look like these?
http://www.modulemaster.com/images/Volvo/Volvo70_2.jpg
I think I did as you did and removed a shortblock and installed a shortblock so those bolts were easy to assess.
Having that cylinder head off was a great help!

I might have used a closed end wrench on them but I think I had a female torx socket that fit them.  It has been over 9 years so I have forgotten. I believe the size used was an E12

Uhhh how did you spin the mains?

BTW did you spray paint one of the torque converter bolt holes so you can
easily align the driveplate to the converter for the install?


Check out my Jeep XJ

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#3 09-14-2015 10:58:18

dave
Newbie
Registered: 04-03-2009
Posts: 13

Re: upper bellhousing bolts

You need the proper female socket and a long 1/2" drive extension. 3/8 drive will work but really twist and torque up before snapping loose. They are in there very tight. Also, take out the trans crossmember and lower the trans transfer case down so you have easier access up top.

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#4 09-14-2015 11:02:36

james
Rookie
Registered: 10-05-2008
Posts: 90

Re: upper bellhousing bolts

I've got the bombproof motor mounts (+1 inch) and a cross-member drop (-1 inch) so, I can get at them .... but .... I'm having trouble getting the socket (12 point SAE 3/8) to engage without walking off.

I think you are right about them being something other than 12 points... I'll hafta get a closer look....

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09-14-2015 11:02:36

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Re: upper bellhousing bolts

#5 09-14-2015 11:57:09

james
Rookie
Registered: 10-05-2008
Posts: 90

Re: upper bellhousing bolts

I suspect you are correct about the torx screws. I'll hafta get a bright light on them & use my cellphone camera to examine them.

as for the bearings ..... funny thing ....

I was so proud of myself after replacing the pistons .... I saw the temp creeping up on the highway and thought to myself -- the parts guy musta gave me the wrong temp sensor.

so.... I drove it at 75 MPH right up into the RED zone and didn't back off until I started hearing the pistons slap against the head. Pulled over and the engine was SMOKIN' hot. oil failure.

I had good oil pressure, right up to the point that the oil failed.

I don't know why it was running hot.

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#6 09-15-2015 09:16:23

browner
Helper
Registered: 10-17-2008
Posts: 37

Re: upper bellhousing bolts

I was able to get those two bolts out with a 12 point socket but I used every extension I had for a 3/8 ratchet. I ended up taking the cross member out and dropping the t-case a bit so I could get a clean shot at them. I had so many extensions on my ratchet I was at the back of the t-case with it. I do think they are an inverted torx though. Try a metric 12 point and see if that is a little tighter.

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