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Old 02-18-2009, 05:26 PM
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Engine Test Stand

In the process of building an engine test stand. Trying to build it adjustable for different engines. Should the carb flange be level or is it critical? If it should be level as compared to having the engine itself level, I'll need to take additional design considerations; or am I just being anal?

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Old 02-18-2009, 07:06 PM
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Quote:
Originally Posted by freedom53
In the process of building an engine test stand. Trying to build it adjustable for different engines. Should the carb flange be level or is it critical? If it should be level as compared to having the engine itself level, I'll need to take additional design considerations; or am I just being anal?
Personally, I don't think it's critical. Cars go up hill and down hill, and they still have to run well... so engines (although mounted relatively stationary) change angle (relative to vertical) all the time. So... my vote - you're Anal!
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Old 02-18-2009, 09:15 PM
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Already I regret my choice of words!
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Old 02-19-2009, 05:29 PM
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Some where I have some pics of a test stand developed for various engines. If I can find them, I will post up to give you some ideas.

Trees
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Old 02-19-2009, 05:58 PM
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Typical engine front-to-rear inclinations are 3-6 degrees - side to side is normally level, but I've seen some that "pre-load" one side to offset the torque.

For a test stand I'd just make it so I could adjust the front-to-rear inclination or just set it at 3 degrees * which is probably easier!
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Old 02-19-2009, 07:21 PM
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We built this test stand, the trans mount is fixed, and the motor mounts are adjustable, in and out, up and down and fore and aft..you can't see it in the picture, but the 2x2 square tube uprights pivot in and out on a second lower bolt. The whole motormount adapter assembly slides on the 3x3 square tubing that the cart is made from for fore/aft adjustment.
If we run out of height adjustment on the motormounts, we shim up the trans.

We try to get the carb base level.

Later, mikey
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BE different....ACT normal.

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Old 02-24-2009, 01:34 PM
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Wanna see some crazy test stands? Go to "youtube" one guy even starts his engine on a regular engine stand... surprised it didn't flip over.

Good Luck

-=Fred=-
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Old 02-24-2009, 07:07 PM
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Quote:
Originally Posted by dirtinla
Wanna see some crazy test stands? Go to "youtube" one guy even starts his engine on a regular engine stand... surprised it didn't flip over.

Good Luck

-=Fred=-

When done right,There's nothing wrong with starting one on a engine stand.I have ran many like that.(even big block chevys).. You just can't get stupid when you give it some gas!!! (But not on a $25.00 Stand.)
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