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Question for Homemade Motor Mount aficionados or ES-Insert "experts"...
Guys,
I recently put the ES inserts on the two lower mounts (dogbone and firewall). Needless to say, huge improvement.
Since I went down this road again, I decided to do the following:
FIREWALL: New OEM mount with ES inserts
DOGBONE: Old OEM mount with ES inserts (new OEM one also standing by but no need to use it since ES entirely replaces stock "inserts")
PASSENGER: Kept old (2-years) OEM mount. ES-insert+OEM base standing buy. BTW, does anyone have the ES-insert on the passenger side mount? Any feedback?
TRANNY (below battery): New OEM mount.
Here is where the home-made mount aficionados may chip in their wisdom.....
Images of the OLD under-battery motor mount:
Question 1:
How does it look? OK, so-so, "tired", useless????
Question 2:
As you may have noticed, it is diiferent than what ES had in mind when they created their inserts! There is only one "slit" in the plastic disk and the ES-inserts will NOT fit this mount. Since I already have it out and replaced it with a new one I have to decide what to do with it? Any opinions?
Option 1: Leave it as is and use it 4-5 years down the road. In this case, do I use the ES-insert on the passener side with a stock mount under the battery?
Option 2: "Drill" holes in it so that the ES-inserts fit.
Option 3: Use McMaster or 3M and fill it. However, since the available space is very limited,I do not think that filling with window-weld will have any pronounced effect. DO I cut some part of the stock ruberr and fill with window-weld? If so where and how much???
That is the new revised mount. I am not sure when Nissan changed over to it. It is true though ES hasn't made any changes to their mounts to accomodate. I think you are fine leaving that one, it would only be stronger filling it with 3M windo weld if you want, that is fine. Or, sell the inserts you have and buy some solid mounts from www.sr20development.com.
Brent
__________________ Coach - EEN Member/The Fist Don't F with me!
1993 NX 2000 -- Slate Grey Metallic bitches
1999 SE-L -- Turbo stuff on it
Originally posted by whitehawk You can use the McMaster urethane compound part#8644 K18. But IMO the lower mount inserts are all that is really neccessary.
OK, thanks for the comments up to now!
I cannot get McMaster whatever in Europe so I will go with 3M WindowWeld and take my time!!!
And I am in experimentation "mode". I can always check how the car behaves with the passsenger and driver-side modified mounts and if I am not OK with it go back to stock upper mounts!
Originally posted by coach That is the new revised mount. I am not sure when Nissan changed over to it. It is true though ES hasn't made any changes to their mounts to accomodate. I think you are fine leaving that one, it would only be stronger filling it with 3M windo weld if you want, that is fine. Or, sell the inserts you have and buy some solid mounts from www.sr20development.com.
Brent
Brent,
the mount shown has been on my car ever since I bought it in May 1992!!! This is why I ignored the "new and revised" comments and bought the ES insert for it!!! I could hardly believe it would be the "new and revised"!!!
However, the fact that the firewall one WAS the "new and revised" that ES used for their design led me to believe this would also be OK.
Do you think that just filling the available space with WindowWeld is better and/or safer than hacking the OEM rubber to create more space for WindowWeld?
And, checking the SR20DEV site, they show what appears to be inserts as well. There is no casing on the pictures they have. Do you have 1st hand experience with those? Do they sell them as inserts or as complete mounts? And how do they stack-up with the rest of the available mounts (Placeracing or whatever)?
I have the firewall, dogbone, and pass side ES mounts, and i did the tranny mount myself... my motor still moves a little, but no where near when i got the car... depending on what you do with the car, you'll be safe with just the firewall and dogbone... but if your gona be real abuseive then go ahead and do em all
__________________
-Mike
1992 NX2000, 1998 Honda Civic
60' 1.997 --- 1/8mi 8.387 @ 84.15--- 1/4mi 13.095 @ 103.29 mph Click here to see my nx2000!
how did you do the tranny mount? Using McMaster or something? And was it like mine? "New and revised"?
Did you do first the two bottom and later the two others? If yes, what was the increase in vibrations by using the modified passenger and tranny mounts? Was the change from stock-to-modified-botoom-mounts less or more than the change rom modified-bottom-only-to-ALL moded?
The SR20development ones press into the stock mounts. YOu will press out the old rubber mounts (meta sleeve and all) then press the SRdev ones in. They are just like the place racing and JWT ones really.
To get 3M window weld to hold, you are going to have to drill holes for it to go through, otherwise it will peel off.
Just my .02 worth. I have the McMasters and have been contemplating the difficulty of doing all 4 mounts at once as it was recommended that you mix all the urethane at once. My hypothesis is that a good tradeoff of performance/driveability would be to urethane the rear mount and front dogbone to control torque, and keep the two end mounts stock to absorb some of the vibration. Can anyone validate my theory?
Option 3: Use McMaster or 3M and fill it. However, since the available space is very limited,I do not think that filling with window-weld will have any pronounced effect.
TIA for your opinions...
Chris
wrong
you'd be suprised what the littlest bit of epoxy will do in the smallest place
I just hacked out most of the rubber on all 4 mounts and filled it with mcmaster stuff. My engine DOES NOT move. I tried rocking it back and forth, with help from a friend, to see if I could move it, no way in hell did it budge. Redline shifting-I have no idea. Although it doesn't feel like any movement of the engine.
__________________
Why did the little girl walk around with a goldfish in her pocket?
So she could smell like the big girls.
where I basically say that all was great with ES-inserts, all 4 was not much worse vibration-wise than 2, BUT...
even the 2 crossmemeber inserts make the car painfully loud over 90mph and I will be going back to OEM mounts until I try "home-made" or "SR20development" inserts.
guys what about vibration and noise of all those types of mounts, i have try before doing my own motor mounts using hard and soft poliuretane.
The soft one was verry good i used on passenger side, but it melted (to hot) i have used the hard one on the trasn side (mine is auto) so it put quite vibration at idle, so my next step would be a clone i will put the hard one on the outer and soft one on the inner side of the mount, this way i protect from temp and a will got a verry vibration less mount
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i will put the hard one on the outer and soft one on the inner side of the mount, this way i protect from temp and a will got a verry vibration less mount
