Strut top mount bolt patterns

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GTEstate
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Location: Michigan

Strut top mount bolt patterns

Post by GTEstate » Fri Jan 18, 2013 11:34 am

Anyone know what the bolt pitch circle diameter is for Anglia 105E strut top mounts? Should it be the same as Mark 1 Cortina?

Thanks.

JAN
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Location: Wigan, UK

Post by JAN » Fri Jan 18, 2013 11:53 am

Not in the manuals for either car.

peteleo
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Location: San Mateo,California

Post by peteleo » Fri Jan 18, 2013 3:33 pm

105E and MK1 bolt pattern are the same. One on the left is a MK1 which are missing the inserts. 105E are stud mounted.Image

reggie
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Joined: Sat Oct 20, 2007 9:38 am

bolt pattern

Post by reggie » Tue Jan 22, 2013 12:01 pm

peteleo wrote:105E and MK1 bolt pattern are the same. One on the left is a MK1 which are missing the inserts. 105E are stud mounted.Image
Hey pete I can see the 4.5 on the bottom but I can't see the the other numbers for the side.. .. is it 3 1/8 ?
"god made Adam & Eve for a reason"

peteleo
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Post by peteleo » Tue Jan 22, 2013 1:58 pm

Sorry about the unclear # It's 3 5/8"

reggie
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thx

Post by reggie » Thu Jan 24, 2013 9:20 am

thx a lot pete..

reggie

peteleo wrote:Sorry about the unclear # It's 3 5/8"
"god made Adam & Eve for a reason"

GTEstate
Posts: 15
Joined: Tue Feb 28, 2012 11:11 am
Location: Michigan

Strut top mount bolt patterns

Post by GTEstate » Mon Apr 15, 2013 10:21 am

Apologies for taking so long, but I needed to measure a larger sample before responding.

This question arose because new strut mounts from the UK don't fit my Cortina. They have studs which match the dimensions Pete gives (4-1/2", 3-5/8"), which work out to a 4-5/8" pitch circle.

I've now measured the bolt patterns on three unmolested Mark 1s (1964, 1965 & 1966) and they're on a 4-3/8" PCD (4-3/16" between holes on the long side and 3-1/2" on the other two sides). This would suggest that Mark 1 Cortinas and Anglias do not have the same bolt pattern.

Image

Can anyone shed light on this?

peteleo
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Location: San Mateo,California

Post by peteleo » Mon Apr 15, 2013 1:21 pm

I re-checked the measurements on the Anglia and Cortina mounts. You are right.

The Anglia mount studs on the long side is 1/4" further. The other two sides is very close 3 5/8" Anglia and 3 1/2" Cortina. I assumed the dimensions were the same.

Are you trying to use 105E top mounts on your MK1? You will need to elongate the holes a bit then, to except the 105E mounts. There is also a height difference in strut mount inner bearing by 1".

I've had an Anglia 105E with all Cortina MK1 suspension including the MK1 mounts. It looked original but they must have elongated the holes to the inside PCD to except the MK1 mounts.

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