Anyone that has pulled an N*? PLEASE! I need some advice.
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Northstar Engines and System Technical Discussion Discussion, Anyone that has pulled an N*? PLEASE! I need some advice. in Cadillac Engine Technical Discussion; ...
  1. #1
    83CADMAN's Avatar
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    Anyone that has pulled an N*? PLEASE! I need some advice.

    My 94 N* project has been on hiatus for a while. Last Sept.
    Since I had decided to remove the engine out the top and stud. I had already disconnected / un-bolted most of the stuff required as well as acquired most of the necessary tools and equipment.
    When I finally got back to it this last week I faced of course what remained, the more difficult tasks, including but not limited to the “TORQUE CONVERTOR”.
    Of course I tried the obvious; starter location and @ dust shield below and discovered that the bolts attaching the flex plate to the torque converter were neither a 17mm (to small) nor a 18mm (to big, wants to round off the bolts).
    I know engine out the top is doable, my FSM outlines the procedure, but I can’t find any info on the bolt size at the T/C.
    What do I do? Short of Grinding an undersize open wrench to fit, plus how do I torque?

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    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: Anyone that has pulled an N*? PLEASE! I need some advice.

    U.S. SAE bolts ??? (7/16, 1/2, 9/16, 5/8 ???)

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    stoveguyy is offline Cadillac Owners Connoisseur
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    I did it the hard way. From underneath. Using crescent wrench. Came off fine. Many have said going up top thru the starter hole is easy with u-joint socket. Using a socket and swivel joint won't work well cuz it is probably too long. Dig up a set of u-joint sockets. Are you using 6 point sockets? Funny how having a set of 6point and 12 point sockets in both inch and metric makes work easier.

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    83CADMAN's Avatar
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    Re: Anyone that has pulled an N*? PLEASE! I need some advice.

    Tried SAE…3/4in to big…11/16in to small!!!! What kinda deal is this?

    ----------

    My socket set is 6 point, but cant get a socket on the damn things. Also tried wobblies (swivel/u-joint) no way!! An offset would work but its back to size...17.5mm???

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    stoveguyy is offline Cadillac Owners Connoisseur
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    I did it last fall. Seems to me it was 18mm? Dad has every wrench known to man and I am pretty sure it was nothing special. Might even have used adjustable wrench.

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    Re: Anyone that has pulled an N*? PLEASE! I need some advice.

    I used 18mm through the starter hole.

  8. #7
    Manic Mechanic is offline Cadillac Owners Fanatic
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    Re: Anyone that has pulled an N*? PLEASE! I need some advice.

    I did mine off and on through the access panel area located under/behind the leading exhaust manifold and engine mount. Pretty sure I used a six point 18mm impact socket, and possibly a swivel, but sure a specific combination of extension and my 1/2 drive ratchet that is about 14" long and has a flop over head joint. I didn't pull the intake and starter until the engine was out so I didn't realize it may have made it easier to access the nuts up there. It was a certified PITA and I started rounding off the first attempt until I came up with a better set-up. I also have the flywheel lock tool that installs on the bottom and I'm sure I used it.

    Vernon

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    Re: Anyone that has pulled an N*? PLEASE! I need some advice.

    I just got off the phone with a local (no disrespect intended) wrecking "yard rat" who gave me the lowdown on spliting N*/tans. It concurs excatly with post #7 with one differance; he used an impact driver and didnt need a F/W lock. BTW I cant even locate a F/W lock for this car!
    so the solution?
    18mm socket
    several extentions
    a wobbley
    impact driver
    left rear access up behind the exhaust
    I'll perform the process and post my results.
    Thanks all for your input.

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    RandyT. is offline Cadillac Owners Member
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    Re: Anyone that has pulled an N*? PLEASE! I need some advice.

    There are plenty of flywheel locking tools on ebay for the Northstar, they run around $100, too high IMO.

  11. #10
    Manic Mechanic is offline Cadillac Owners Fanatic
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    Re: Anyone that has pulled an N*? PLEASE! I need some advice.

    This seller has two like mine for $30 each.
    http://www.ebay.com/itm/Kent-Moore-F...6077be&vxp=mtr

    Without the tool it's possible, let the socket jam against the edge of the block or lock flywheel with a punch in it's holes.

    Vernon

  12. #11
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    Re: Anyone that has pulled an N*? PLEASE! I need some advice.

    Success!! Impact wrench, a 18mm with a wobbly and a couple extentions. ZIP! BANG! DONE!
    Thanks for the tips.
    ps I'm gona make my own lock tool for install/torque, $30.00 is to steep IMO. Apiece of flat bar with a bend and a hole at one end and a chislel point on the other! A hundred bucks on e-bay! LOL! Give me a break!

  13. #12
    stoveguyy is offline Cadillac Owners Connoisseur
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    Did you notice bell housing bump out for starter? Odd, no?

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    83CADMAN's Avatar
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    Re: Anyone that has pulled an N*? PLEASE! I need some advice.

    I did!
    Maybe a design carryover from the 4.9 series?
    I thought Caddy’s like most GM's, the starter is located on the right. The bump out you mention is located to the left! I guess if a starter were to go there it would be a convenient location. Made for great access to the FW bolts.
    Well this week the beast is coming out!

  15. #14
    stoveguyy is offline Cadillac Owners Connoisseur
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    We had 4 grand prixs. All gone. Never really looked at starter location. Think it was down low driver front area? I could see GM deciding to use the 4t80e trans in other cars. Seems odd the fwd V8 grand prixs never used it. Too darn heavy, bulky I suppose to fit.

  16. #15
    83CADMAN's Avatar
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    Re: Anyone that has pulled an N*? PLEASE! I need some advice.

    Man! What’s with all the fuss over method of engine removal, out the top, or, out the bottom?
    I just pulled my N* out the top and it was a piece of cake.
    Now I really know what “Preferred method vs. Alternative method” means in the FSM.
    Out the bottom = BIG BUCKS (labor, A/C service, Front end… opps! Scratch that… 4-point alignment and brake service not to mention what ever else might go south during the process.

    Out the top = get the damn thing out and fix it.

    Onward to pulling the heads!
    1994 Caddy N-star removal 003.jpg1994 Caddy N-star removal 005.jpg1994 Caddy N-star removal 006.jpg1994 Caddy N-star removal 007.jpg

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