how much do engine mounts collapse?

hey folks
I am trying to use some first gen tundra engine mounts in an engine swap. the engine going in weighs about as much as a 2uzfe. a little less.

can anyone help me understand how much these mounts are supposed to collapse under the weight of the engine? I am trying to figure out the final engine position after the weight is on the mounts.




is the mount supposed to collapse until the engine side bracket rests on those two support arms? or are they just failsafes for the mount as it wears out?

if anyone has a photo of the mounts in their 2uz tundra I would love to see how they look installed. I cant fabricate the engine side brackets until i get a sense of how much squash to expect.

thank you
Mitch

 

Too bad I didn’t see your post until now. I was just under there spraying my O2 sensors with penetrant.

I believe the answer is 1/2 what you see but I can’t confirm till late Sunday or Monday; sorry.

 

That’s a teaser. What’s the project?

 

Here’s a pic from a member here with a torn rack boot that posted recently. Model is a 2004 Toyota Tundra DC Limited 4x4, V8.

Yours appears to be upside down.

 

I guess we can rule out a Cummins 12 valve swap since the 2UZ is lighter

 

thank you for the reply and photo. they dont appear to collapse much. maybe 1/4".

the swap is a mercedes om606 diesel into a ford van.

 

That’s what I figured















Not

 

Mine looks like Jacks and the rubber is about 1 1/2 inches thick after 25 yrs and more than 250k miles.

 

Is that the Unimog engine?

 

I pulled and installed a few different 4.7 engines. The amount the rubber engine mounts compressed was negligible when the vehicle is just parked with the engine not running. If you’re asking because of lack of space with your engine swap, keep in mind that there will undoubtedly be a lot more compression and tension in the rubber mounts when the vehicle is towing, burnouts, bumps, drops, jumps, ect.

 

Let’s see…Ford van, mercedes engine, toyota engine mounts….check, check, and check.

 

here is the engine on the mounts
i dont love that the mounts are at different angles but I may leave it.

the mounts didnt compress much but they did deflect a little to one side. Im hoping putting the cover plates on the mounts helps with that.

 

Does the engine use a traditional pickup, and will it be impacted by the motor being off-kilter, with the pump kicked over?

I don't know this engine, but I'm not stranger to stuffing engines into things they weren't designed for haven't done any in a while though, but you'll find me on LS1Tech dating back some 20 years/

My biggest concern is, the engine is designed to pickup oil from the deep (driver side) part of the pan, if sitting at the current angle, the end of the pickup may not be fully submerged in the bottom, and oil starvation.

But with the accessory drive on the front, specifically that (power steering pump, it looks like) on the driver's side (you could maybe relocate?) you may not have a choice except to kick it over like that.

 

the engine is designed to sit at a 15* slant just like that. I am not sure why from an engineering perspective. notice that the bottom of the oil pan is almost flat.

 

I was curious about that!

Anyway, it looks like a really cool project!

 

No doubt a challenging project! I have both an E350 econoline van and tundra engine mounts. I lack a mercedes engine though. My 5.4L gasser engine runs strong enough that there’s no need to swap in a different engine, but i would love to get a 7.3 diesel between the frame rails.

The oil pan looks a bit close to the left side of the crossmember on yours? If that’s the case, i wouldn’t hesitate for 1 second to create a notch on the crossmember (and of course weld in a plate back in place over the hole).