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Old 12-12-2004, 04:04 PM   #1
JimG
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Default Tightening M46 bellhousing top bolt

1986 740T M46, J-type o/d

I stumbled on to a way to install the top bellhousing bolt with a minimal amount of blood and profanity.

I had all the other bellhousing bolts installed (starter - 2, bottom pan - 2, others - 3). I had tried to install the **** thing from the top - forget it - too many wires and a/c tubing. I tried the "extension thru the shifter hole" approach solo - nobody to guide the socket - not gonna happen.

I was laying under the car on my creeper contemplating what I would like to do to some anonymous Swedish auto engineer - my feet sticking out under the front bumper. I found that I could get both arms around the bellhousing so I could get to the bolt with either hand. Em, grabbed a 19 mm 12pt offset box end wrench in the left hand and the bolt in the right. I could finger tighten the bolt with my right (new bolt). I could position the box end on the bolt with my left - using my right to keep the box on the bolt head. Surprise, surprise - I had over 90 degrees of free swing with the wrench to tighten the bolt. I found that I had pretty decent leverage to apply some good torque as well.

The bolt's in and tight (it's there for some reason).

hth,

JimG
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Old 12-12-2004, 04:07 PM   #2
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you can also either:

1. Not put the top one back in
2. Get about a 2-3' long extension and a swivel, works fine too.
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Old 12-12-2004, 04:07 PM   #3
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Old 12-12-2004, 04:21 PM   #4
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Quote:
Originally Posted by Snoop Dougy Doug
you can also either:

1. Not put the top one back in
2. Get about a 2-3' long extension and a swivel, works fine too.
That bolt is the reason I own a 30" extension and a swivel joint...
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Old 12-12-2004, 04:24 PM   #5
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I have 2 extensions 18" and 30" - neither worked real well with a universal. My mechanical charma was really suckin' this weekend.

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Old 12-12-2004, 04:57 PM   #6
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Quote:
Originally Posted by Snoop Dougy Doug
you can also either:

1. Not put the top one back in
2. Get about a 2-3' long extension and a swivel, works fine too.

When I pulled my engine to swap, I made the mistake of not pulling the tranny with it. Needless to say, I chose option #1
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Old 12-13-2004, 11:02 PM   #7
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If the shifter is out and you have the right extension, you can do it without even getting dirty. Well...sort of anyways. Get a buddy to lay under the car and put the socket/extension on the bolt. You sit inside the car and stick the ratchet handle through the shifter hole and snap it into the extension. Voila....told you that you wouldn't get dirty

Your buddy under the car? Depends how clean your garage floor is, I suppose....
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Old 12-13-2004, 11:26 PM   #8
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a mechanic forgot some pin on a transmission belhousing once in my jeep and it cracked the bell housing all the way around. and the damn guy took zero responsibility for it too.
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Old 12-14-2004, 12:48 AM   #9
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It's considered bad form, but from underneath the car by the driver's side, use a 19mm socket on a swivel, connected to a 4" extension, connected to a swivel, connected to a 6" extension. I wouldn't under any circumstance use and impact gun on that combo but with a ratchet it will work.
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Old 12-14-2004, 12:52 AM   #10
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Quote:
Originally Posted by Captain Bondo
It's considered bad form, but from underneath the car by the driver's side, use a 19mm socket on a swivel, connected to a 4" extension, connected to a swivel, connected to a 6" extension. I wouldn't under any circumstance use and impact gun on that combo but with a ratchet it will work.
Basically what i use, except I use wobble extensions and impact swivels (not as floppy). Never a problem to get to those bolts on top. The right tools make working on the car so much easier.
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Old 12-14-2004, 12:55 AM   #11
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Quote:
Originally Posted by Dan242tic
The right tools make working on the car so much easier.
Yeah, this bolt is a non-issue with a 1/2 inch breaker bar and a 3 foot long 1/2 in extension. I also have a 1/2 inch 19 mm swivel bought just for this purpose.

edit:// In all fairness though, ^^^ is a $300 setup. You need that kinda thing though when you do it day in and out.

Last edited by swedefiend; 12-14-2004 at 12:57 AM..
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Old 12-14-2004, 08:44 AM   #12
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I just jack up the tranny to tilt the engine forward a bit and go at it from the top - never had much of a problem with that.
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Old 12-14-2004, 09:53 AM   #13
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Quote:
Originally Posted by 11110000
I just jack up the tranny to tilt the engine forward a bit and go at it from the top - never had much of a problem with that.
i think this one sounds the best
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