How To: Blox Front Motor Mount Install
-pal215
Last edited by Pal215; Feb 7, 2012 at 11:54 PM.
Newbie
Joined: Feb 2009
Posts: 19
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From: SJ408
4. At this point I slid a jack under the trans to keep the entire assembly from settling. This was just a precautionary measure.
i did mine without supporting it, im sure 3 motor mounts can hold the engine up.
plus i read on someones thread the bolt hole for the the front mount is loose anyways so the engine can torque or whatever.
plus i read on someones thread the bolt hole for the the front mount is loose anyways so the engine can torque or whatever.
just did this yesterday
I just did the install of the Blox mount on my 05 MR yesterday .
Install: no issues in the install itself. I do have the BeatRush full aluminum undertray and that takes more time to remove. I did not find any of the bolts to be frozen or hard to remove. Everything was original BTW 79K . I did see that the original engine mount through bolt hole was much larger than the bolt itself...more on that later. Rest of install was straight forward.. I used antiseize on all bolts during install. For the install I actually inserted the through bolt first and then lined up the rear bolt, then the 2 front bolts, screwing them in by hand. this avoids the slight misalignment of the through bolt others have found during the install. All bolts were then torqued to spec.
Impressions:
Despite what others have said, you will notice an increase in the vibration at idle. The stock mount was completely vibration free, the Blox you can feel in the steering wheel. It becomes more evident if the a/c is blowing. My idle is at stock specs. The vibration does go away off idle ~1K. Driving impression..i installed this to help with shifting into 2nd which has always felt very notchy and during cold weather even a slight crunch. Was not helped by different fluids so i run Diaqueen after experimenting back in the day. Anyways, i did notice a different feel to second gear shift, slightly easier to get it in. 3-4-5-6 have always been very slick...no change at all on that. Putting the car into first is still slightly notchy when cold..we'll see what happens during the Georgia winter.
Overall i'd be happier if there was less vibration but understand the stiffer material will transmit more NVH. Im pretty **** about noise in my MR though. I have done this before on other cars and i have to say doing just the blox front mount does keep the NVH to an acceptable level.
Back to the large hole in the original Mitsu front mount. For those people who want decrease the slop but wont consider stiff poly mounts, i suggest the following. Find a nylon or aluminum sleeve ( Home Depot ) that just fits into the hole in the mount and then drill it to just fit the factory bolt. This will take some slop out of the system making the rubber take all of the force rather than the engine moving until the bolt hits the metal sleeve.Ii would expect the stock mount to deteriorate quicker this way though.
Your experience may vary :-)
Install: no issues in the install itself. I do have the BeatRush full aluminum undertray and that takes more time to remove. I did not find any of the bolts to be frozen or hard to remove. Everything was original BTW 79K . I did see that the original engine mount through bolt hole was much larger than the bolt itself...more on that later. Rest of install was straight forward.. I used antiseize on all bolts during install. For the install I actually inserted the through bolt first and then lined up the rear bolt, then the 2 front bolts, screwing them in by hand. this avoids the slight misalignment of the through bolt others have found during the install. All bolts were then torqued to spec.
Impressions:
Despite what others have said, you will notice an increase in the vibration at idle. The stock mount was completely vibration free, the Blox you can feel in the steering wheel. It becomes more evident if the a/c is blowing. My idle is at stock specs. The vibration does go away off idle ~1K. Driving impression..i installed this to help with shifting into 2nd which has always felt very notchy and during cold weather even a slight crunch. Was not helped by different fluids so i run Diaqueen after experimenting back in the day. Anyways, i did notice a different feel to second gear shift, slightly easier to get it in. 3-4-5-6 have always been very slick...no change at all on that. Putting the car into first is still slightly notchy when cold..we'll see what happens during the Georgia winter.
Overall i'd be happier if there was less vibration but understand the stiffer material will transmit more NVH. Im pretty **** about noise in my MR though. I have done this before on other cars and i have to say doing just the blox front mount does keep the NVH to an acceptable level.
Back to the large hole in the original Mitsu front mount. For those people who want decrease the slop but wont consider stiff poly mounts, i suggest the following. Find a nylon or aluminum sleeve ( Home Depot ) that just fits into the hole in the mount and then drill it to just fit the factory bolt. This will take some slop out of the system making the rubber take all of the force rather than the engine moving until the bolt hits the metal sleeve.Ii would expect the stock mount to deteriorate quicker this way though.
Your experience may vary :-)
Last edited by WRC-LVR; May 3, 2012 at 12:14 PM.
re vibration
Yes anything above 1k i get no no vibrations at all. Fast cold idle no vibrations either. Vibration is noticeable and my Autometer EGT, mechanical oil and boost gauges also reflect the vibration. It isnt real harsh otherwise I would rip it out and do what I suggested with the stock mount ( sleeve the center bolt ) but if it gets worse then I may consider it....essentially I replaced it to help with cold shifting and the notchy feel of 1st gear and second gear.... it has helped with that so I will wait to see how things progress.
Thanks for the inquiry
L8r
Last edited by WRC-LVR; May 3, 2012 at 12:16 PM.
Newbie
Joined: Feb 2009
Posts: 19
Likes: 0
From: SJ408
I just did this install half hour ago.and I honestly can't feel any vibration.Maybee because I haven't had the opportunity to drive n warm up the car properly?Also I did not have any issue installing the mount.I work at a Jiffy lube so I was able to pull the car into the shop this morning n went to work.(I have a cool boss let's me work on my car whenever not busy)anyway the mount slid in perfectly did not have to pry anything holes all alligned perfect.hardest part was taking off n reinstalling dam undertray.
