355 Engine Height

Dave rocks · Feb 10, 2017

Andy 355 said: ↑

Dave rocks. Mate your photo of engine out in your garage shows how i do jobs. Absolutely immaculate working environment. Credit to you on your standards of workmanship. I will be sending my dash vents to you in the near future. The pristine way you have that engine out is proof of quality work.
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Thank you, Andy. Much appreciated. I like to do things the proper way and figure what I save in labor offsets the cost of proper tools and custom tools where needed.

Now I just need to find time to get back to rebuilding the motor and other work on the car.

Andy 355 · Feb 10, 2017

I have seen your refinishing of sticky parts and this further drives home my confidence to send my parts to you from Australia. Good for you and well done.

eulk328 · Feb 12, 2017

I wrote to the manufacturer and sent some photos of what I was talking about and it seems they said it's okay to do this with the butt end off the lift:

Twin Busch GmbH | Technik <[email protected]>
Feb 10 at 1:19 AM

Hello,

this should not be a problem if the car is safely secured on the lift, most of the weight will be carried by the cross beam.

You should take when the engine is fitted that the car is then lowered and not lifted so that the weight of the back end does not cause the car to tip.

Mit freundlichen Grüßen,

Best regards,

Paul Steven Robinson

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Paul Steven Robinson
Twin Busch Germany GmbH
Ampérestr. 1 | D-64625 Bensheim
Tel.: +49 (0) 6251 - 70585-284 | Fax: +49 (0) 6251 - 70585-29
Amtsgericht Darmstadt | HRB 89083
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Twin Busch GmbH - GARAGE EQUIPMENT - qualitativ hochwertige und innovative Produkte | [email protected]

Dave rocks said: ↑

So, from an engineering perspective let's discuss a cantilever:

Say for example that the cantileverd section of the car hanging off a 2 post lift or other is 1/3 the weight, that moment arm will be less than the moment of the front 2/3's of the car in the opposite direction. The resultant won't cause a tip. If it did, when lifting a 355 on a 2 post, it would fall off the back.

Now, I know the CG is a bit forward (toward front of car) than rear jack point. So, that is further evidence that the engine, gearbox and subframe subassembly is less than 1/2 the weight of the car.

That said, the resultant force of hanging the ass end of the car off anything, won't cause a tip. So, lifting the car will still be its total weight. Therefore, the lift capacity, 2 or 4 post can do the job if that capacity is sufficient.

Now, I'm all for taking precautions and being safe so adding weight to the front or strapping the front down will be added protection and wise.

Another example is lifting a load with a fork truck where the load is larger (longer) than the forks. As long as the resultant moment does not create a tip (more weight in front than the counter weight) lifting is no issue.

Doing this with a 4 post will be really no different than a 2 per this discussion.
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Dave rocks · Feb 12, 2017

German's are great engineers - they get it

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