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how to diagnose cracked engine mounts

Posted: Thu Mar 25, 2010 10:26 am
by 16bit
hey guys just wondering if there is a way of diagnosing cracked engine mounts or a way to look and see?

i have noticed a vibration at certain idle points and was wondering what it could be.

thanks!!

how to diagnose cracked engine mounts

Posted: Thu Mar 25, 2010 11:17 am
by Steampunk
- sometimes getting in/out of gears become more difficult
- rev the car high-ish whilst stationary, release the throttle immediately and see how much flex/movement the engine has

how to diagnose cracked engine mounts

Posted: Thu Mar 25, 2010 11:33 am
by 16bit
cracked for sure. sounds like a bitch of a job to do too.

how to diagnose cracked engine mounts

Posted: Thu Mar 25, 2010 12:39 pm
by 93_Clubman
Been thinking about doing a limited GB of the MazdaSpeed engine mount from Corksport given the A$ v US$. The mounts have gone up from US$69 to US$76 plus shipping etc, but they can get seven pairs into a large USPS priority mail international carton which costs US$55.95. Discount, usually of about US$4 is only offered for more than 10 pairs, which then means two boxes, which in turn means the most effective approach is 14 pairs of engine mounts, or a mix of MazdaSpeed engine & diff mounts. The diff mounts are US$99 & similarly require about 10 pairs to attract a small discount. Of course, need to keep the A$1k limit in mind when ordering these sorts of numbers - kind of escalates...

how to diagnose cracked engine mounts

Posted: Thu Mar 25, 2010 1:17 pm
by 16bit
forutnately i already have some mazdaspeed engine mounts :mrgreen:

just need to get them installed.

how to diagnose cracked engine mounts

Posted: Thu Mar 25, 2010 2:35 pm
by 93_Clubman
indeed, not the easiest job. how about diff mounts?

how to diagnose cracked engine mounts

Posted: Thu Mar 25, 2010 2:54 pm
by 16bit
not diff mounts but have a full set of energy suspension bushes which includes a diff one i think

how to diagnose cracked engine mounts

Posted: Thu Mar 25, 2010 10:36 pm
by silvermiata
If you have a good socket set with really long extensions it is not that hard to change the engine mounts.. I have done mine in about 2 hours ah you also need 2 jacks for the job

how to diagnose cracked engine mounts

Posted: Thu Mar 25, 2010 10:45 pm
by sliq
how are those engine mounts silvermiata? :D

how to diagnose cracked engine mounts

Posted: Fri Mar 26, 2010 9:40 pm
by manga_blue
16bit wrote:not diff mounts but have a full set of energy suspension bushes which includes a diff one i think

Energy Suspension diff mounts were by far the worst mod I ever did. Took me a back breaking 4 hours to put them in and then the same again a few weeks later to get them out again. I still have them in the garage. I mean to stick pins in them then burn them and dance around the flames under the full moon to exorcise the pain.

how to diagnose cracked engine mounts

Posted: Fri Mar 26, 2010 10:44 pm
by silvermiata
sliq wrote:how are those engine mounts silvermiata? :D



they are ok sliq.. thanks for them.. 8)

how to diagnose cracked engine mounts

Posted: Sat Mar 27, 2010 1:46 pm
by Hellmun
Installing the Mazdaspeed engine mounts wasn't that bad.... I think it took only a couple of hours. The first one is actaully really easy to do, it's the second one that you really need a second persons help with. However as long as you have a jack, wheel stands and a few good pieces of lumber I wouldn't really avoid doing it. My standard mounts were fine and I only noticed a slight decreases the gearstick movement. It did reduce me hitting 5th instead of 3rd when dropping gears though on the track.

Phil I actaully run a 3 point diff brace which increased the NVH a bit but was dead easy to put in. I think it's a carbing unit.

how to diagnose cracked engine mounts

Posted: Sat Mar 27, 2010 3:26 pm
by sliq
nope, it's an RS aizawa :P

how to diagnose cracked engine mounts

Posted: Sat Mar 27, 2010 6:17 pm
by Hellmun
The Front STB is Rs Aizawa. Rear strut, front subframe and guard braces were Carbing. The diff brace doesn't have any markings. I just assume it's carbing.

how to diagnose cracked engine mounts

Posted: Sat Mar 27, 2010 7:04 pm
by WASP
Not that hard,we did a set today,the secret is a lonnnng extention bar,on the drivers side undo the nut that attaches the mount to the bracket and take it out in two sections
WASP