 Outboard engine mounts..., Any reason not to do it? |
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| bondo |
 Jan 18 2005, 08:57 PM
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#1
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Practicing my perpendicular parking  Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California  |
I'm designing and fabricating my own crossmember to hold the LT1 in place. I was thinking I might use 911 sport mounts at the ends of the crossmember, and mount the crossmember rigidly to the engine. I know the early tailshifters did it this way, not sure what the typical conversion kit does. One reason I want to do this is because the stock LT1 mounts are huge and probably weight 12 lbs each. The other reason is I would like to be able to mount the bar to the engine before installation and then use it as a jack point for installation maneuvering. If it were rigidly attached I would be more confident pushing the engine around with it. I don't see any reason why it wouldn't work, but I thought I'd see if anyone else did (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif)
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| McMark |
Jan 18 2005, 09:05 PM
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#2
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
The mounts were moved inboard to the engine in order to further reduce vibration noise. My guess is that it's because the engine bar becomes a level and a little shake with a big level becomes a lot of movement for a little rubber dampener. So, yes you could do it. It will likely be nosier than the alternative. But really, what's 20 lbs more in a v8 conversion? (IMG:http://www.914world.com/bbs2/html/emoticons/poke.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/lol2.gif)
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| bondo |
Jan 18 2005, 09:36 PM
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#3
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
VERY good point! It's likely to be worse with a v8 because of the angle of the cylinders, and that they'll be higher than the originals. Hmm.
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| Carl |
Jan 18 2005, 11:25 PM
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#4
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Ummm ... what? Group: Members Posts: 781 Joined: 17-January 03 From: San Jose, CA Member No.: 163 Region Association: Northern California |
Outboard engine mounts...
and I'm thinkin' clamps from an Evanrude ... (IMG:http://www.914world.com/bbs2/html/emoticons/idea.gif) |
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| bondo |
Jan 19 2005, 12:09 AM
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#5
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
Hey, now there's a thought.. but how am I gonna get the transom in there? (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) |
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| ClayPerrine |
Jan 19 2005, 08:44 AM
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#6
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Life's been good to me so far..... Group: Admin Posts: 15,468 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille 
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Ok.. now I know I have a weird imagination.... This made me see a picture of you getting out of your 914, popping the engine lid, and using the pull rope on the Evenrude outboard motor mounted inside to start the car....... (IMG:http://www.914world.com/bbs2/html/emoticons/chairfall.gif) |
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| Root_Werks |
Jan 19 2005, 11:22 AM
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#7
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Village Idiot Group: Members Posts: 8,321 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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(IMG:http://www.914world.com/bbs2/html/emoticons/lol2.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/chairfall.gif) |
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| SteveSr |
Jan 19 2005, 12:05 PM
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#8
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Member Group: Members Posts: 203 Joined: 7-October 03 From: Knox,In. Member No.: 1,223 |
Bondo,here is what I did for my V6,I took the stock rubber mounts off the car last weekend and they are shot. Not sure what I'm going to do yet........
SteveSr Attached image(s) 
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| Mueller |
Jan 19 2005, 12:30 PM
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#9
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None
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I helped work on a ZZ4 converted 914 that had the reddawg motor mount/cradle, the owner installed rubber bushings/mounts on the outboard /4 locations with no known problems
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| SteveSr |
Jan 20 2005, 11:57 AM
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#10
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Member Group: Members Posts: 203 Joined: 7-October 03 From: Knox,In. Member No.: 1,223 |
I have seen the mounts that Rennshift is offering,what would be wrong with making some out of solid rubber or nylon? SteveSr |
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| BIGKAT_83 |
Jan 20 2005, 02:58 PM
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#11
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Senior Member Group: Members Posts: 1,798 Joined: 25-January 03 From: Way down south Bogart,GA Member No.: 194 Region Association: South East States 
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Bondo on my LS1 conversion I had to move the stock GM mounts farther forward on the engine I made these out of .5" aluminum and used the older style gm mount (3 bolt) instead of 4. This lined up the cross bar with the stock porsche mount.
Oh I bought the new chevy mounts at a auto store for $4.15 each. You have to like the older chevy part prices. Attached image(s) 
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| bondo |
Jan 20 2005, 03:12 PM
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#12
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
Sweet, thanks! Which holes are for what in that pic? I like the idea of $4 engine mounts (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) Do you know if the LS1 and LT1 have mounts the same distance from the rear of the block? |
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| BIGKAT_83 |
Jan 20 2005, 03:27 PM
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#13
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Senior Member Group: Members Posts: 1,798 Joined: 25-January 03 From: Way down south Bogart,GA Member No.: 194 Region Association: South East States
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I think that they are the same mount but maybe in a different posistion on the block. I have a Lt1 that I can measure and I will but can't get to it today. The three holes that make the triangle are for the old style chevy mount and the 4 holes are for the orginal new style mount.
Bob |
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| bondo |
Jan 20 2005, 03:29 PM
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#14
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Practicing my perpendicular parking Group: Members Posts: 4,277 Joined: 19-April 03 From: Los Osos, CA Member No.: 587 Region Association: Central California |
No hurry, this is all still a few monts off.. at the earliest. |
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