Re: [AMC-list] Pacer motor mounts oddities

[Wrambler <wrambler242@xxxxxxxxxxx>]

It's a 12 mm.
I remember all to well scrounging that booger up in bumF**k WV....

Mark Price
Morgantown, WV 26508
1969 AMC Rambler, 4.0L, EFI, T-5
2004 Grand Cherokee Laredo, 4.7L, Quadratrac II
"I realize that death is inevitable.
I just don't want to be around when it happens!"

----- Original Message -----

> From: "Frank Swygert" <farna@xxxxxxx>
> To: amc-list@xxxxxxxxxxxxxxxxx
> Sent: Friday, March 11, 2011 9:40:08 AM
> Subject: Re: [AMC-list] Pacer motor mounts oddities
> 
> Andrew is correct about the front left motor mount bolt hole being
> used for the knock sensor on Renix 4.0L engines. The standard car
> mount plate has to be drilled out and a metric bolt used (seems like
> it's a 10mm metric bolt, but it may be 12mm -- been a long time for
> me!). Most people, however, are using mid 70s-late 80s blocks. Earlier
> ones are a bit fewer and further between nowadays, most were made
> after the Pacer came out. I seem to recall that the boss isn't drilled
> and tapped on some blocks after 2000, not sure what year that started
> or if I'm even correct... all may be drilled and tapped, I've not
> actually looked at a 2000+ block. Newest I ever had out of a vehicle
> is 1999, and I believe it was drilled and tapped.
> 
> 
> --------------------------
> Date: Thu, 10 Mar 2011 12:17:03 -0500 (EST)
> From:adh@xxxxxxxxxxxxxxxxx  (Sandwich Maker)
> 
> " From: Glen Hoag<hoag@xxxxxxxxxx>
> "
> " IIRC, there is at least one new motor
> " mount boss on the 1975-up block to accommodate the Pacer brackets,
> so
> " in that regard, the Pacer block was different, but once changed,
> the
> " same block was used on everything until the next change, which I
> " think was for the Eagle front axle mount.  I think that extra boss
> is
> " where the knock sensor wound up on the 4.0 block.
> 
> afaik it's one of the original amc mount holes; i've read several
> references to drilling the amc mount out to 12mm [the knock sensor
> thread] and getting a metric bolt.  i believe the 4.0 normally uses
> new holes just fwd of the amc ones.
> 
> -- 
> Frank Swygert
> Publisher, "American Motors Cars"
> Magazine (AMC)
> For all AMC enthusiasts
> http://www.amc-mag.com
> (free download available!)
> 
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