new rear motor mount but still vibration

[K2e2vin]

For reference, pics of the mounts:

Rear torque:


Motor mount(driver's side):

Transmission mount:


Look at the V shaped webbing. Notice they're all set up like this(compressing the V shape):

(Weight)
|
|
\/

o
// \\

[dadsCB7]

there's a procedure to "neutralize" the mounts. basically you loosen all horizontal bolts, shift thru the gears a few times and then tighten them down. logically, i have no idea what that's supposed to do, but there is a bulletin for it.

[wed3k]

it's different because you have four mounts to support the weight evenly instead of one trying to hold back 750 lbs or 1/4 of the vehicle's weight.

example: i did this to a set of esp mounts and the car doesnt vibrate at all.

all of the mounts thta i tighted without holding the engine's weight up in a rested position vibrate whether it would be just a simple clutch R&R or engine removal.

im going by theory and experience here. plus, bushings only give so much. the more you compress it, the faster it can prematurely wear out. im not too worried about that though, im just worried about them binding and causing an issue which a customer will notice.

[K2e2vin]

Probably to prevent premature wear and keep the motor level so to say. I do something similar; just rock the hell out of the engine with my arms then torque them down.

I don't think you would have an issue with binding in any of the motor mounts. The motor doesn't move too much so I don't see it being an issue. If anything, binding would more likely to occur on the transmission and motor mount that utilizes a polyurethane material instead of rubber...as we know that poly doesn't flex as well as rubber. Even then, that's not likely to happen.

[wed3k]

ill look up the procedure in the manual and ill report back.

[kemetuimay]

i just notice that when im at a red light and shift my car to N to stop the vibration the car rev up and down but if i release the brake pedal while in N the revving stop in a little bit, it kind of look like there is a leak in the brakes somewhere