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    Thread: 1.8t Motor Mounts - FAQ

    1. Moderator groggory's Avatar
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      07-08-2012 05:48 PM #51
      Quote Originally Posted by hithard02 View Post
      Oh a little late for an A+ job! It looks like sh*t but we'll see if it helps and at a total of 50 for the mount and adhesive I'm not complaining.
      Not at all! Is that a new, OEM mount that you started with?
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    2. Member Big_Tom's Avatar
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      07-08-2012 09:24 PM #52
      Quote Originally Posted by hithard02 View Post
      Oh a little late for an A+ job! It looks like sh*t but we'll see if it helps and at a total of 50 for the mount and adhesive I'm not complaining.
      i don't think i could have done that any better myself
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    3. 07-08-2012 11:03 PM #53
      Those look awesome. And I believe the way to get rid of the bubbles would be through vibration.

    4. Moderator groggory's Avatar
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      07-08-2012 11:46 PM #54
      Quote Originally Posted by warranty225cpe View Post
      Those look awesome. And I believe the way to get rid of the bubbles would be through vibration.
      This says to use a vaccuum

      http://www.ehow.com/how_7527278_pour-urethane.html
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    5. 07-09-2012 12:02 AM #55
      Wouldn't using some sort of vibration while curing also work the air out? it seems much easier considering the messed up shape and etc of the mount.

      Could be work trying.
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    6. Moderator groggory's Avatar
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      07-09-2012 12:15 AM #56
      Quote Originally Posted by AmIdYfReAk View Post
      Wouldn't using some sort of vibration while curing also work the air out? it seems much easier considering the messed up shape and etc of the mount.

      Could be work trying.
      Vibration is great for getting bubbles out. My girlfriend loves baking and she uses tapping and vibration to get bubbles out of cakes all the time.

      However, I don't know how effective it'll be with something as viscous as polyurethane. As to the oddball shape, that's not really an issue because all you have to do is put it in a bag, pull a vacuum on the closed bag, and call it a day. Only trick is the vac pump.

      Regardless, even without pulling a vacuum, I bet the solution the guy did with filling the mount will work great.

      All this talk of removing bubbles is just a little detail for a truly perfect install.

      Next time right? :-)
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    7. 07-11-2012 10:18 PM #57
      Anyone know anything about working with Delrin? I'd like to see oem style filled with Delrin.

    8. Moderator groggory's Avatar
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      07-11-2012 10:20 PM #58
      Quote Originally Posted by warranty225cpe View Post
      Anyone know anything about working with Delrin? I'd like to see oem style filled with Delrin.
      You don't pour delrin, you machine it
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    9. 07-11-2012 10:54 PM #59
      Oh.., ok. Then is there anything else that we could inject into the cavity to give them the desired stiffness? Or maybe even use Delrin, but make them like puzzle pieces that you can snap into the cavity. It would be a matter of engineering them right, but it's likely possible.

    10. Member Three3Se7en's Avatar
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      07-11-2012 11:01 PM #60
      Bfi has delrin mounts.
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    11. Moderator groggory's Avatar
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      07-11-2012 11:26 PM #61
      Quote Originally Posted by Three3Se7en View Post
      Bfi has delrin mounts.
      Exactly. Bfi and brewspeed are both delrin
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    12. 07-31-2012 03:53 PM #62
      DLI Technik Observation:

      Application: BT GLI daily driver
      Mileage since install: 50K+

      Pros: Offer solid, secure feel to the front yet is able to dampen some vibration issues that a pure prothane mount cannot. No engine rocking whatsoever. No issues since the day I installed them. I can replace the bolts and rebuild the mounts if I wanted to (which I will).

      Cons: Living in Florida and on the beach, the center and side bolts have noticeable surface rust.

      Pics: Motor is beyond dirty.

      Passenger Side Mount (Front View)




      Passenger Side Mount (Back View)



      Driver Side Mount (Front View)



      Driver Side Mount (Back View)

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    13. Moderator groggory's Avatar
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      07-31-2012 04:05 PM #63
      Very cool, nbkkb7x

      Just a few thoughts for that surface rust.

      Put some naval jelly on the rust, then wipe it off to get rid of the rust. Then shoot it with a quick spray of clear polyurethane. That should prevent the rust from returning. It would have been nice if they would have used fasteners that resisted rusting.

      Perhaps some DLI users could chime in on the specs of the bolts that come with the mounts and we could figure out what bolts to substitute in that would meet spec plus not rust.
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    14. Semi-n00b
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      08-03-2012 09:15 AM #64
      I have just been looking at the spring mount installation. One thing that seems odd is that is is just a coil spring. Springs are linear and have no damping so you could get excessive movement, especialy on resonance which is why you have dampers on your road springs. Also some of the highest forces are horizontal due to torque reaction and I can't see how this acomodated in the mount. If it works it works, but I just can't see how.

    15. Member Dub-Nub's Avatar
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      08-03-2012 09:24 AM #65
      Turns out my Density line mount is leaking fluid...just great!

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      08-03-2012 09:31 AM #66
      Quote Originally Posted by Dub-Nub View Post
      Turns out my Density line mount is leaking fluid...just great!
      If its leaking out of the diaphragm at the bottom then I would not worry, apart form the fact its glycol and will wreck your paint. If its leaking because the load bearing member has split thats a different story.

    17. Member Dub-Nub's Avatar
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      08-03-2012 09:35 AM #67
      Quote Originally Posted by Lethal Injection View Post
      If its leaking out of the diaphragm at the bottom then I would not worry, apart form the fact its glycol and will wreck your paint. If its leaking because the load bearing member has split thats a different story.
      The bushing itself is solid and does not move. The leaking is occuring from the bottom like you stated. I got most of the fluid out. I am trying to get in touch with DLI for their mounts becuase this is the second time the Density mounts have failed me. My engine is producing too much power for them

    18. Member 18T_BT's Avatar
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      08-03-2012 10:19 AM #68
      Quote Originally Posted by Dub-Nub View Post
      The bushing itself is solid and does not move. The leaking is occuring from the bottom like you stated. I got most of the fluid out. I am trying to get in touch with DLI for their mounts becuase this is the second time the Density mounts have failed me. My engine is producing too much power for them
      that's not the case, the density line of mounts are mostly junk and have numerous failures posted on vortex

    19. Semi-n00b
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      08-03-2012 10:33 AM #69
      I am surprised they actualy have any fuid in them. As soon as you change the rubber compound the "tune" of the mount is changed and the damping element is useless. Its better not to have fluid in at all under these circumstances.

    20. 08-03-2012 02:26 PM #70
      The street Density ones are fluid filled and will "deflate" if they leak.. The track density ones do have some fluid in the bottom but it is very minimal cause its more of a solid mount. My track density engine side mount is still going strong, but I blew through 2 sets of streets.

    21. Semi-n00b
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      08-03-2012 02:45 PM #71
      Quote Originally Posted by stealthmagic27 View Post
      The street Density ones are fluid filled and will "deflate" if they leak.. The track density ones do have some fluid in the bottom but it is very minimal cause its more of a solid mount. My track density engine side mount is still going strong, but I blew through 2 sets of streets.
      The fluid is not for supporting weight it is for damping. I think what you are seeing is the mounts "sag" due to permanent deflection in the rubber. That forces the fluid against the thin rubber seal at the botom eventualy splitting it.

    22. Member Big_Tom's Avatar
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      08-03-2012 04:45 PM #72
      Quote Originally Posted by Dub-Nub View Post
      The bushing itself is solid and does not move. The leaking is occuring from the bottom like you stated. I got most of the fluid out. I am trying to get in touch with DLI for their mounts becuase this is the second time the Density mounts have failed me. My engine is producing too much power for them
      Density line mounts suck. i've seen tons of failures on those things. many cars not even big turbos

      Quote Originally Posted by 18T_BT View Post
      that's not the case, the density line of mounts are mostly junk and have numerous failures posted on vortex
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    23. Member l88m22vette's Avatar
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      08-03-2012 05:25 PM #73
      Quote Originally Posted by Lethal Injection View Post
      I have just been looking at the spring mount installation. One thing that seems odd is that is is just a coil spring. Springs are linear and have no damping so you could get excessive movement, especialy on resonance which is why you have dampers on your road springs. Also some of the highest forces are horizontal due to torque reaction and I can't see how this acomodated in the mount. If it works it works, but I just can't see how.
      Bump for answer, will need mounts soon, its either DLI Technik or BFI Stg. 1...
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    24. Moderator groggory's Avatar
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      08-03-2012 05:59 PM #74
      Quote Originally Posted by l88m22vette View Post
      Bump for answer, will need mounts soon, its either DLI Technik or BFI Stg. 1...
      I think both are good mounts that you'd be happy with
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      10-25-2012 09:08 PM #75
      This is a fantastic thread.

      I'm actually trying a new set of Febi OEM mounts all the way around. My mounts are currently original, broken, and have 220,000kms on them. I figure new mounts, even OEM should be night and day difference.

      I have BFI stage II mounts in my 93 Jetta ABA-T, and it's pretty harsh. I don't mind that in my second car that's built to be quick, but I wouldn't want to daily a car with stiff mounts.
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