TECH- 289 windsor engine mounts in A rails.

[lowsquire]

Well heres my very belated contribution to tech week...
I didnt like the looks of stock windsor mounts so decided to make something a bit different,more customised I guess.
Started with 6mm plate, cut with a gas axe to a little bigger than i needed to allow for fuk ups and 'sculpting'
ground the line in em to about 3mm deep, and bent cold with a BFH in a big vice.Angle was about 15 degrees, adjusted to suit engine once I had it centered and at the correct height.

[lowsquire]

This is the section that attaches to the frame,
cut from 90x90x5mm RHS, has an internal width of 80mm,which is perfect for the early falcon rear spring front bushes Im using for 'rubbers' (they are actually nolathane...the red stuff)
12mm hole and shaped on my dads wonderful 12" disc sander
Sorry about all the metric measurements,ive really tried to adopt imperial but its just a headfuk.mils rock. http://www.jalopyjournal.com/ubbthreads/images/graemlins/grin.gif

[lowsquire]

here they are mocked up on the rail..

[lowsquire]

next I made a little butress to reinforce the span the mount has to cover (about 5 inches...see ? im trying!!)

[lowsquire]

Now a piece of 40 mm nominal pipe 3mm wall 65mm long is welded to the mount, I tacked it with it all attached to the engine on both sides.much adjustment with angle grinder preceded this step,but I guess thats obvious .
The falcon bushes will have to be turned down in a lathe to 42 mm O.D. to fit in the pipe...the shoulder on the bush is left on.

[lowsquire]

The other side all weldeded up. http://www.jalopyjournal.com/ubbthreads/images/graemlins/smirk.gif

[lowsquire]

And here it is installed, I havent turned down the bushes yet, they get a crush tube in them and are a tight fit in the chassis bracket bit,probably a bit more vibration than a stock mount but thats the idea.the bit i havenrt decided on is a pattern for 'lightening' holes...

[Levis Classic]

VERY NICE!

[lowsquire]

Maybe something like this......

[Dragrace66]

good work and simple too.

[C9]

Very nice lowsquire.

The curved sides add a lot to the looks.

What you're calling Nolathane I'm guessing we call Polyurethane.
I've seen a few poly cushed motor mounts - using 4 bar type poly bushings - and the owners report they work well.
No vibration or buzz.
My experience with UHMW - similar to poly - motor mounts with a UHMW biscuit same size as a 48 Ford rubber biscuit has them running very smooth with no vibration or buzz.
In fact, the car feels smoother with the UHMW than it did with the rubber.
A subjective opinion perhaps, but the important thing is there are no problems using the UHMW.

As far as the lightening hole goes, how about one hole, somewhat centered, perhaps trending a little high due to the triangular shape.
Simple does it most times.
Hit the lightening hole with a countersink if you can and chamfer the edge a touch.
That adds quite a bit in the good looks department imho.

[Fat Hack]

Nice work on the custom mounts! http://www.jalopyjournal.com/ubbthreads/images/graemlins/cool.gif

Great to see a Ford-in-Ford once in a while, too!

[lowsquire]

thanks guys, the hole thing is eating at me now,
cant really do a single hole C9, as the butress bit is right down the centre on the back...
maybe this - or does it look a bit billet? http://www.jalopyjournal.com/ubbthreads/images/graemlins/crazy.gif

[C9]

You're probably asking the wrong guy as far as the billet bit goes.
I love aluminum, but the way I figure, if you make it yourself it ain't billet....

Anyhoo, didn't think about the buttress/gusset.
The two hole triangular pattern you laid out looks way better than the multi holes in your other illustration.
Once the motor mount is painted, powdered or chromed there's not going to be much of a billet look about it.

One of the things that really make a hot rod stand out - at least to me - is well made, well finished brackets, mounts and the like. Well finished meaning before the decorative stuff (paint, whatever) goes on, no sharp edges, symmetrical unless it's an unsymettrical piece and generally speaking designed to show that some thinking was done about it.
Your mount, a far cry from the bent 1/2" thick rectangular piece I saw at last Sunday's car show.

You're doing great so far.

[fordiac]

AWESOME post.

that last hole plan looks awesome.

awesome is the word of the day.

those mounts are it.

[lowsquire]

Finished the bushes today,wierd stuff,its kinda hard,but very elastic too,turned them down in a drill press,with a long wood chisel!!
Dodgy ,but it worked fine.drilled 18mm rod with a 12.5 hole,for the spacer/crush tube, Some 10.9 hi tensile bolts,and it all went together easy.

[lowsquire]

Got two days work in these bloody things!

[C9]

Those look really classy - even without the triangular lightening holes.

Here's a pic of the UHMW biscuit mounts in my 32.
These turned out to be a fortunate deal cuz I'd made a set of identical ones for my not-running-yet 31 on 32 rails roadster.
The original biscuits in the 32 were 48 Ford rubber as mentioned above.
Note that the aftermarket rubber biscuits have varying hardnesses of the rubber with some of them being way too soft right up front.

Reason the UHMW biscuits came about on the 32 was because the lower/underside rubber biscuits got soft and allowed the engine to shift on the mounts.
Making for an interesting clicking sound on some turns.

Anyway, knocked out a set of UHMW upper and lower biscuits as well as a lower aluminum locating plate which has a step in it to locate the engine in the about 13/16" factory sized motor mount hole in the frame mount.
The upper load spreader plate is simple, it has a step or flange so it will locate the UHMW biscuit.
The lower plate has a step/flange in it as well.

As far as the upper load spreader plate goes, it's probably not necessary.
It would depend on the shape of the engine side mount.
The 31 engine with connected trans sat on a UHMW biscuit without load spreader plate for 7 months and when the engine was raised to add the LS plate the UHMW was unmarked.
Surprised me, I thought it would have a ding in it after holding the weight up for that length of time.

[C9]

Here's a pic of the 31's UHMW mounts in disassembled form.
Note the step/flange in the aluminum plate.

These mounts are virtually identical to the ones in the 32 - which have about 40,000 miles on them and no problems.

The main difference between the 31 and 32 mounts is the hole size in the frame side motor mounts upper plate.
It's approx 13/16" as mentioned in the previous post and in the 31 it's 1/2".
Thinking at the time was, metal to metal contact wouldn't hurt since the 31 was originally slated to be a dry lakes car.
Long story there.

Before and if, I bore the 31's frame side motor mounts upper plate to 13/16" I'm going to try the 31 as is.
It may buzz and it may not.
I think not because the UHMW has a dampening effect on the mount system.
There will be an underside UHMW biscuit similar to the small one on the 48 Ford rubber biscuit cushion mount system.

Just in case you're confused by now, the step on the previously mentioned 32 mounts is in the lower aluminum plate.
If the 31 does buzz, it will get a new stepped plate as on the 32 and the mount hole bored to 13/16" plus.

I meant to ask what you had to turn down on your Polyurethane cushion.
Length or diameter?

[lowsquire]

I had to turn the diameter down, from 52mm to 42mm.
left the shoulder on the ends at full width.
the thing I worry a little about is fore-aft movement is only arrested by the 5mm wide shoulder on the bush, but i guess with the trans mount it cant really move far..
Thanks for the info on your mounts too C9, I was originally going to do that type, but had these bushes lying around, and im cheap....the whole job cost $10.50 (for the bolts!)

[Psychobilly Boi]

hey ben,

im sorry i missed the opp to come over and see you fab those up. they are awesome. your ride will look trick when its done...put me to way too much shame. perhapes the sweet malty flvouring of Haggen Premium Larger will easy my pain. see you tonight.

danny

[Mai Ki-Ki]

Psychobilly Boi is such a suck....

Hell they look ok.... http://www.jalopyjournal.com/ubbthreads/images/graemlins/grin.gif

Can we cut out mudflap shaped grrls in the brackets?
http://www.jalopyjournal.com/ubbthreads/images/graemlins/grin.gif

Catch you later today...

How the hell did i miss this post!

cheers! http://www.jalopyjournal.com/ubbthreads/images/graemlins/crazy.gif

[NealinCA]

Very nice. I really like your idea to cut the back of the bracket to bend it cold and the weld it up.

Keep us updated on the rest of your project. From the looks of those mounts, you will have a neat rpu when done.

Neal

[Barillaro Speed Emporium]

Here are some mounts I made for a 289/Top loader in a 32 chassis. This style could be used in an A chassis and are pretty simple to make.

www.barillarospeed.net (http://www.barillarospeed.net)