 motor mount dimensions, measure please |
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| machina |
 Mar 29 2004, 05:40 PM
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#1
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Advanced Member  Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848   |
I am going to fab some motormounts but I don't have a spare one to measure.
Can someone give me some exact measurments including the rubber length and diameter and the length of the studs on each end? thanks, dr Attached image(s) 
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| SpecialK |
Mar 29 2004, 06:10 PM
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#2
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aircraft surgeon Group: Benefactors Posts: 3,211 Joined: 15-March 04 From: Pacific, MO Member No.: 1,797 |
I'll check mine as soon as I get home (12:30 am) if you haven't already gotten an answer by then.
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| URY914 |
Mar 29 2004, 06:40 PM
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#3
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I built the lightest 914 in the history of mankind. Group: Members Posts: 120,510 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
The short stud is a hair under 5/8"
the rubber is 1 1/4" the long stud is 2 1/8" Next you'll ask me to convert these to metric... (IMG:style_emoticons/default/laugh.gif) Paul |
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| machina |
Mar 29 2004, 06:54 PM
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#4
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Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848 |
hey paul,
so what is that in mm? just kidding (IMG:style_emoticons/default/idea.gif) how about the diameter of the rubber. I was planning on finding a bushing from energy that has similar dimensions and then cutting in to exact size and passing a bolt thru the center. Might give a little isolation compared to steel or aluminum only. My CSR had solid mounts and the damn thing would vibrate itself into pieces. dr |
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| URY914 |
Mar 29 2004, 07:16 PM
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#5
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I built the lightest 914 in the history of mankind. Group: Members Posts: 120,510 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
Diameter is 2"
Pi R Squired/mm*SR+914= cost of rust free 914 (IMG:style_emoticons/default/laugh.gif) I'm in the middle of building a front engine mounting bar out of 1" round tubing and 3/4" square tubing. Has to be lighter than that cast iron anchor. (IMG:style_emoticons/default/sawzall-smiley.gif) (IMG:style_emoticons/default/welder.gif) Paul |
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| JWest |
Mar 29 2004, 07:26 PM
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#6
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Senior Member Group: Members Posts: 1,662 Joined: 6-January 03 From: Fort Worth, TX Member No.: 97 Region Association: None 
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| URY914 |
Mar 29 2004, 07:43 PM
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#7
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I built the lightest 914 in the history of mankind. Group: Members Posts: 120,510 Joined: 3-February 03 From: Jacksonville, FL Member No.: 222 Region Association: None |
James,
Why is it called a "side-shifter" engine mounts? Aren't they all the same? Paul |
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| machina |
Mar 29 2004, 07:55 PM
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#8
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Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848 |
QUOTE(James Adams @ Mar 29 2004, 09:26 PM) send some this way, that is what I was thinking about. (IMG:style_emoticons/default/burnout.gif) have you tried both types? Is the nylon mount almost as rigid as the aluminum? thanks, dr |
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| JWest |
Mar 29 2004, 08:24 PM
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#9
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Senior Member Group: Members Posts: 1,662 Joined: 6-January 03 From: Fort Worth, TX Member No.: 97 Region Association: None
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QUOTE(URY914 @ Mar 29 2004, 07:43 PM) James, Why is it called a "side-shifter" engine mounts? Aren't they all the same? Paul No, the tail shift cars have a different mount bar and are solid mounted at the engine. 911 (rubber) mounts are used at the outer ends. |
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| JWest |
Mar 29 2004, 08:40 PM
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#10
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Senior Member Group: Members Posts: 1,662 Joined: 6-January 03 From: Fort Worth, TX Member No.: 97 Region Association: None
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QUOTE(synthesisdv @ Mar 29 2004, 07:55 PM) send some this way, that is what I was thinking about. (IMG:style_emoticons/default/burnout.gif) have you tried both types? Is the nylon mount almost as rigid as the aluminum? thanks, dr The nylon is pretty rigid, but it does attenuate quite a bit more noise and vibration than the aluminum. It is hard to compare to polyurethane, as nylon is plastic like and the hardness is measured with the Rockwell R scale. Polyurethane is considered like a rubber (and can range greatly in how hard it is from squishy soft to plastic hard) and is measured by its durometer. |
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