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Thread: Differential Insulator Mount

  1. #1
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    Default Differential Insulator Mount

    I need a little help getting the rear suspension put back together on my 1972 240z. I took off the old front differential insulator, seen below, which has a center bolt that is fastened with a washer and nut.

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    The new insulator, seen below, has a rubber center section where the bolt should be. Is this the right insulator? How does it attach to the cross member?

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    Also, this project has taken me a few weeks as I got derailed with the rear control arm pin for a couple of weeks. Now my memory is fuzzy and I can't remember how I disassembled the cross member. There are two bolt holes on either side of the center hole in the front cross member. (see below circled in yellow) I don't remember anything attached here when I disassembled the cross member but it's been awhile. What attaches to these holes?

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    Thanks for the help.

    Rick

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    Default

    I'm guessing that there's a stud under that rubber. Maybe someone missed a step during manufacturing and didn't clean up the leakage. Or somebody forgot to put the bolt in but poured the rubber anyway.

    The two holes are probably for the big ugly vibration damper that Nissan added to later Z's.
    1976 280Z, with some minor modifications

  3. #3
    Rust Free'ish zKars's Avatar
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    You're going to feel silly when you pull that rubber protector off the threads...

    The two threaded holes in the crossmember were used for an optional weight that was hung off the crossmember to counteract vibration. Nothing for you to do.
    Last edited by zKars; 10-11-2014 at 07:16 PM.
    siteunseen likes this.
    -----------------------------------------
    Jim
    73 240Z HLS30 149331
    69 510 PL510 77603

    www.zKars.com
    www.calgaryzclub.ca
    Reference materials
    www.xenonS30.com

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    Eureka!! Under the rubber cover is a nice shiny bolt. The rubber cover was on pretty tight so I had to grab it with some pliers. I do, in fact, feel silly. I'd like to lie and say this was the first time I was an idiot...but sadly, that would not be true. Thanks for the help.

  5. #5
    Nova Scotia,Canada,Earth Blue's Avatar
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    We've all been there welcome to the club!
    There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.
    The person who buys on price alone is this man's lawful prey.


    John Ruskin (1819 - 1900)



    ZCars in Eastern Canada seaport ready for shipment to Europe

    http://ZSportCanada.com


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    Rust Free'ish zKars's Avatar
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    The only way anyone has the right to poke fun at someone elses mistakes, is if they have a degree from the university of doing silly things. As anyone who has worked with me knows, I have a PhD from there.
    -----------------------------------------
    Jim
    73 240Z HLS30 149331
    69 510 PL510 77603

    www.zKars.com
    www.calgaryzclub.ca
    Reference materials
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  7. #7
    Registered User siteunseen's Avatar
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    We have a satellite U.D.S.T school down here. I put my pistons in the block 3 times. Notch forward, dimple up, gap at 10 2 and 4 etc.

    I used my PHD Saturday planting some Knockout Roses for a neighbor. She paid me back.
    zKars likes this.
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    Nova Scotia,Canada,Earth Blue's Avatar
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    I studied at the Sheet Harbour Institute of Technology.
    LeonV likes this.
    There is scarcely anything in the world that some man cannot make a little worse, and sell a little more cheaply.
    The person who buys on price alone is this man's lawful prey.


    John Ruskin (1819 - 1900)



    ZCars in Eastern Canada seaport ready for shipment to Europe

    http://ZSportCanada.com


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    Registered User Oiluj's Avatar
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    As I'm fond of saying: "Good judgment comes from experience, and experience comes from poor judgment".

    Looking backward, I must be very experienced...
    Blue likes this.
    Julio
    1972 240Z (in-progress, 95% complete)
    CZC# 15388

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    Quote Originally Posted by Blue View Post
    I studied at the Sheet Harbour Institute of Technology.
    That's so cool! I did some distance learning from the same institute.

    I've got my Sheet Harbour Institute of Technology Hardware Engineer Associates Degree.

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    An old friend says, "Experience is what you get when you didn't get what you wanted"................

    Cheers, Mike
    '73 240Z, 80,000 original miles, F54, N42 massaged and shaved (10.5-1 comp.), stage 2 cam, ZX ignition, Header, 2 1/2" exhaust w/ magnaflow muffler, 5 spd (Maxima), 4:11 R180 (200SX), 15" Rota RBs 205-60/15 Bridgestone Grid 109s, KYB struts, stock springs, rubber bushings, MSA sway bars and strut bars, HotRod Air hvac system, '90 300ZX seats, upgraded sound system, BRE-type spook and spoiler

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    My favorite way of describing these kind of things is "tuition" ie the cost of learning at one of these institutions
    Charles

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