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how do people make there engine mounts?
pocket rocket - 5/1/09 at 11:08 PM

a bit ahead of my self i know (iv only just sorted fitting the engine iv got) but im keen to try either a BEC conversion or fit a 3sgte engine/box from an mr2 after the summer and i was just wondering how people make there engine mounting points for the chassis???
From what i gather most are made of plate steel (please correct me if im wrong )
Do you need to find somewhere that will laser cut them and bend them to shape for you or is there a more DIY way of doing it?
I figured if i can bend it in the garage with a hammer then its not strong enough to take an engine


zilspeed - 5/1/09 at 11:13 PM

My own mounts are 1.5mm thick ERW, 3mm steel plate, a hammer, a welder and a vice.

The only bent bits are few bits where I put a flange in here and there - it was hard work even with the vice and the hammer. I have no doubt whatosever about the strength of what I have built.

I craned the engine in, picked the final position then got the measuring tape and hacksaw out. Not really as much of a deal as I had feared.


pocket rocket - 5/1/09 at 11:27 PM

is it possable to heat plate steel with a welder to help bend it to shape...

iv attached a pic of the mounts on the chassis at the mo, they look to solid to bend with just a hammer. Rescued attachment mounting plate for loco.JPG
Rescued attachment mounting plate for loco.JPG


Mark Allanson - 6/1/09 at 07:47 PM

How I did it


C10CoryM - 7/1/09 at 12:00 AM

A few years ago someone showed me what is imo the easiest and best way to do engine mounts.

Basically what you do is get 4x suspension bushings. Mine were these ones just because thats what were laying around. Came with inner sleeves too.

http://store.summitracing.com/largeimage.asp?part=ENS-7-3105G&Prod=Energy+Suspension+Rear+Control+Arm+Bushing+Sets&img=ens-7-3105g_w.jpg .

Then what you do is go to your local metal supplier and find a tube that fits snug on the outside. Cut the tube so that your inner sleeve is barely shorter than the 2 bushings in the tube.


Those are my tubes that the bushings fit into. Ignore the doodling on the picture.

For the part that bolts to the engine make a flat plate. Then make 2x plates that weld to the plate, and have holes for a bolt to go through the bushing sleeve.
Hard to explain. I will try to get pics of my mounts tommorow. I have to weld something to one anyhow.

Not sure if it helps you, but it's what I have found to be the easiest way. Use rubber if you want as even with rubber the mounts will be stiff. Mine are poly which make it pretty much solid.
Cheers.

[Edited on 7/1/09 by C10CoryM]


t.j. - 7/1/09 at 12:57 PM

I use the Sierra one's.

They are angled, so bit more work. And the steering shaft could be a problem...

Maybe the rubber parts are too flexy so maybe they need further on to be replaced by Land Rover ones.

[Edited on 7/1/09 by t.j.]


pocket rocket - 7/1/09 at 08:34 PM

Cool, thanks for the help and the pics

whats ERW???


Alan B - 7/1/09 at 09:12 PM

quote:
Originally posted by pocket rocket
Cool, thanks for the help and the pics

whats ERW???


"Electric resistance welded" tubing..the main stuff we use for chassis....the type with seam on one side.


pocket rocket - 7/1/09 at 09:17 PM

ha ha thanks... i really need to get a welder!
iv told the other half that if i get a welder il weld the washing mashine to the fridge... she doesn't seem that keen lol


Cheffy - 10/1/09 at 03:39 PM

Hi,

I did my Zetec mounts similar to how Mark did his above.

Link to Zetec mount pics

Pics near the bottom of the page. Not completed in the pics but finished since. I'll get some more pics up shortly.

I'm also building a V8 and this is how I made the mounts for it:-

Link to V8 mounts

About 3/4 the way down the page.

HTH,

Mart.

[Edited on 10/1/09 by Cheffy]


Valtra - 10/1/09 at 07:01 PM

have a gander at the mounts in the donor make a few measurements then fabricate similar on your chassis shouldn't be too much bending involved . I fitted a steady bar between engine and top rail as well to cut sideways wobble on the soft old Fiat engine mounts


pocket rocket - 11/1/09 at 05:25 PM

good idea

to the people that have made there own mounts - did you have some one cut the plate steel into shape for you or did you do it your self, and if so how?... do you need a plasma cutter?


Valtra - 11/1/09 at 06:30 PM

3mm plate should be fine then use a hacksaw for the basic shape and then an Angle grinder to take off bigger lumps and a file to fettle . if you have a plasma cutter fine use that but unless you are setting up to manufacture engine mounts it's hardly worth the bother , and likewise if you have access to a profile cutter lucky you , but it's not worth driving more than a mile or two to access one just for a couple of engine mount plates . quicker to fettle-em


pocket rocket - 11/1/09 at 06:58 PM

thats what i wanted to hear
its good to know that something as major as fixing the engine in place can be done with a saw, grinder and a bit of thought and hard work.
i don't have a plasma cutter.... but i really want one... although im not sure why ha ha


Valtra - 11/1/09 at 07:06 PM

quote:
Originally posted by pocket rocket
thats what i wanted to hear
its good to know that something as major as fixing the engine in place can be done with a saw, grinder and a bit of thought and hard work.
i don't have a plasma cutter.... but i really want one... although im not sure why ha ha


I could actualy sell you a new one but you won't want to hear the price

Have fun


C10CoryM - 11/1/09 at 09:28 PM

Ok, I finally got to the shop today.
Not sure if it helps, but I find this a really easy and good way of doing mounts.



Like I said in my previous post you just get some rubber or poly bushings and find a tube to fit over top.
For the part that bolts to the engine, make a cardboard template of the flat part (use grease pencil on the block to find out where the holes go on template). Get some flat stock. Mine are just 3.5" wide flat stock cut to shape using a cutoff wheel in my 4.5" grinder. Then using some more of the same flat stock, cut two pieces for the "ears" that the bolt goes through. Drill holes in ears, then position engine in place. Bolt ears to bushing/tube then tack in place to the engine plate. Once that is done you can add whatever support you need to get your chassis to that tube.

Notes:
- I used a piece of 2x2" tube, drilled a hole through it with a holesaw the same size as my bushing tube, then cut the 2x2 tube in half to get a perfect fit.

-these mounts will be very stiff even with rubber bushings. With poly they will be pretty much solid. I don't want my heavy engine crashing around much anyhow.

-don't light your bushings on fire when tacking . Remove them when doing any welding.

-buy good quality cut off wheels for your hand grinder. The make life much easier for all cutting. I've gone through about 5 of them on my chassis so far. Cut like butter and hold a straight line.

Anyhow, hope this helps someone.
Cory.


C10CoryM - 11/1/09 at 09:32 PM

two more notes
Add some boxing on the ears to stiffen them. Do this after you have your other tubes in place.

And also leave yourself some room to play with otherwise it can be difficult to get the engine in after final welding. I had to file the holes in the ears a little to re-align them. Also had to hit with a hammer to spread the ears a little. Nothing to major though.