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Apr 11, 2013 21:05:16 GMT
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I have recently put a 2.9 merc engine in my Landy ( see readers rides mercedes land rover) All is good except I have vibrations....and they are not good! It's at low revs only, and I have transit mounts at present and they seem quite hard. I got these at my local breakers yesterday from a passat diesel, the engine wobbled quite nicely, so as long as they will take the weight, could be good but.... On the passat they were mounted quite upright, and in the Landy they (definitely 1 anyway) would have to be angled, so from this..... To this.... I think they are fluid jobbies, surprisingly light, but will they work at an angle? Any input greatly appriciated :-)
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Last Edit: Apr 11, 2013 21:06:48 GMT by datsundrew
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Apr 11, 2013 21:47:45 GMT
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can't see why they wouldn't work, pug ones are very similar as well.
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Apr 11, 2013 21:59:48 GMT
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Are they mounted at an angle in the pug?
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Apr 11, 2013 22:02:28 GMT
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no, pretty much flat actually, I've never taken one apart but I;d imagine its free from air so the angle wont matter surely? also given its a pair mounted in a Vee form then if positioned correctly the weight will be going through them in the same direction as intended.
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bortaf
Posted a lot
Posts: 4,549
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Apr 11, 2013 22:19:24 GMT
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One thing i would watch out for is if they are fluid filled ? the diesel ones on my truck are and one split when the clutch cable snapped at a roundabout, the tops are rubber but the lower section is fluid filled and rather weak but they do let it wobble a lot at idle (and so not the rest of the truck)
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R.I.P photobucket
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,161
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Apr 12, 2013 11:59:21 GMT
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Or put the seats on springs/rubber? As in a truck.
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Apr 12, 2013 18:17:59 GMT
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Mmmm.....well I might give it a go, I'm sure they are fluid jobs, but as you say, mounted at even angles it more or less forms a straight push. If they do give way, it should just drop onto the metal casing so it's not going to fall out :-0. They are fairly easy to change, access is ok.
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Apr 12, 2013 18:29:09 GMT
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get yourself some landy diesel mounts.
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PhoenixCapri
West Midlands
Posts: 2,683
Club RR Member Number: 91
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Good vibrations?PhoenixCapri
@phoenixescort
Club Retro Rides Member 91
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Apr 12, 2013 18:45:55 GMT
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Afraid engine mounts like those are specifically designed for their application - engine/box needs to be the same weight, body/frame side stiffness needs to be the same etc etc. They only work correctly when upright due to the two chambers and the way the fluid is designed to move between them. If they have to be mounted at 45deg due to space, then use rubber mounts, solid are easiest to figure out, but voided ones tend to be better for isolation. As said the landy diesel engine mounts may well work pretty well since they're designed for that sort of engine. When is the vibration happening, at idle or whilst driving at low engine speeds with load? This sort of thing is part of my job (though I'm not a full on expert!) so if you can describe the issue in detail I might be able to give you a few pointers Getting an engine mounted correctly to avoid vibration issues is actually quite complicated so the best and easiest way to make sure it's mounted ok is to copy the same setup as the car that the engine came from. In terms of the body side of the mounts have you kept the standard mount positions or have you moved them to a different spot on the frame? Also have you maintained the mount height on the engine - if you move the mounts up/down/back/forth its very easy to loose control of the engine when it is near it's rigid body modes meaning it can move all over the place and cause all kinds of nasty stuff. Hope you get to the bottom of it soon
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You're like a crazy backyard genius!
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Apr 13, 2013 10:10:39 GMT
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All change then! Had no idea that they Are so specific. It only at low revs, maybe 1500-2000 rpm. It makes driving in town a ball ache. I should have used the original merc mounts, but they are too wide for the passenger side........maybe that is the problem. I had no idea the tdi mount was like that, that may well work and looks like it could fit. Will order some up.
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bl1300
Posted a lot
Posts: 1,678
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Apr 13, 2013 18:50:00 GMT
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A mitsubishi l200 mount might be suitable as well.
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Current fleet.
1967 DAF 44 1974 VW Beetle 1303s 1975 Triumph Spitfire MkIV 1988 VW LT45 Beavertail 1998 Volvo V70 2.5 1959 Fordson Dexta
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Use rubber if you can, I can't think of a Fluid mount that is mounted on an angle and I am sure they must operate in a "plane" I have fluid filled in my daily S211 benz, when the go they are worse than solid mount, rubber may not be quite as nice when Fluid is 100% functioning, but they last 3x as long and average better
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Contrary to popular opinion, I do have mechanical sympathy, I always feel sorry for the cars I drive.
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Apr 24, 2013 20:25:59 GMT
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I made a discovery today......I went around with the grease gun yesterday, greasing up all the bits that need it. I noticed a tiny bit of play on the sliding shaft on the rear prop, greasing it took out the play and a lot of the vibration has now gone....result. It's now not bad at all so I'm hoping a new one may make it even better- worth a go as they are cheap.
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