993 Engine Mounts

[TVP993]

Hi All,

I'm thinking of changing the engine mounts on my 993 C2. The car has covered 84k miles so I think it's about time. However I'm looking for something that is a little firmer.

I'm thinking of going for the C4 mounts. Am I right in saying that the engine mounts for the C4 is half way between the RS mounts and the C2 mounts?

Spoke to my indy today and for some reason the C4 mounts are half the price of the C2 mounts. Can anyone shed any lights on this?

Also can anyone tell me what the mounts on the targa is like?

Many thanks

[911perv]

C4 are solidish C2 are filled with magic I believe, hence the double price

No such thing as a targa mount

Edited by 911perv on Wednesday 14th July 08:27

[jackal]

c2 fluid
c4 mixtuire of fluid and solid
rs solid
Wevo take an extra set of teeth

as always, see my webiste

[Orangecurry]

...as I understand it - C2 mounts allow movement in two directions, C4 mounts only need to move in one as the extra driveshaft removes the need for the other direction.... oh ask Guards Red; he knows....

But remember; with a 993, Porsche did things for an engineering reason, NOT just to make money. Replace like with like, OR prepare to change other parts to match (engine carrier IIRC)

[MogulBoy]

On a slight tangent, I read on the Pelican Parts website that the 993 engine mounts are 'functionally equivalent' to the 986 Boxster transmission mounts, you just have to swap over the triangular bracket that comes with the Boxster tranny mounts but in the process, you get your replacement mount for half the price of the Boxster part...

993 engine mount (inset) Boxster tranny mount (c/w removeable triangular bracket)

[TVP993]

Thanks all.

Jackal where is the best place to buy some mounts?

jackal said:

c2 fluid
c4 mixtuire of fluid and solid
rs solid
Wevo take an extra set of teeth

as always, see my webiste

[911perv]

TVP993 said:

Thanks all.

Jackal where is the best place to buy some mounts?

jackal said:

c2 fluid
c4 mixtuire of fluid and solid
rs solid
Wevo take an extra set of teeth

as always, see my webiste

What ones are you going for?

[TVP993]

911perv said:

TVP993 said:

Thanks all.

Jackal where is the best place to buy some mounts?

jackal said:

c2 fluid
c4 mixtuire of fluid and solid
rs solid
Wevo take an extra set of teeth

as always, see my webiste

What ones are you going for?

Not completely sure yet. I think either the C4 or maybe even the RS ones.

[Pickled Piper]

MogulBoy said:

On a slight tangent, I read on the Pelican Parts website that the 993 engine mounts are 'functionally equivalent' to the 986 Boxster transmission mounts, you just have to swap over the triangular bracket that comes with the Boxster tranny mounts but in the process, you get your replacement mount for half the price of the Boxster part...

993 engine mount (inset) Boxster tranny mount (c/w removeable triangular bracket)

Looks identical to the 993 mounts that I purchased. Any part numbers on the body of the mount itself to verify?

pp

[Pickled Piper]

Orangecurry said:

...as I understand it - C2 mounts allow movement in two directions, C4 mounts only need to move in one as the extra driveshaft removes the need for the other direction.... oh ask Guards Red; he knows....

But remember; with a 993, Porsche did things for an engineering reason, NOT just to make money. Replace like with like, OR prepare to change other parts to match (engine carrier IIRC)

What he said. It never ceases to amaze me how many people assume that the hardest mounts are always the best. Same goes for things like poly bushes, spring rates etc. Teams of Engineers spend months tuning the bushes to perfection when the car is being developed, taking into account all manner of parameters.

Then I guess I am biased as I am one of those Engineers.

pp

[jackal]

TVP993 said:

Thanks all.

Jackal where is the best place to buy some mounts?

jackal said:

c2 fluid
c4 mixtuire of fluid and solid
rs solid
Wevo take an extra set of teeth

as always, see my webiste

Peter at GTone and tell him i sent you and ask for 10% off. 01932 569 911

And if you fit the RS ones as OC says think about upgrading the engine carrier at some point, eps. if you do trackdays

[cragswinter]

Hmmm interestin reading,
my c4 has a slight shimmy (this is the only way I can describe it?) when sat at tickover. The car doesn't shake so much but you can feel the engine beating away from side to side. To be honest I just thought that the engine mounts could do with being replaced but could it be that it's the norm on a c4?

[911perv]

jackal said:

TVP993 said:

Thanks all.

Jackal where is the best place to buy some mounts?

jackal said:

c2 fluid
c4 mixtuire of fluid and solid
rs solid
Wevo take an extra set of teeth

as always, see my webiste

Peter at GTone and tell him i sent you and ask for 10% off. 01932 569 911

And if you fit the RS ones as OC says think about upgrading the engine carrier at some point, eps. if you do trackdays

And let us know how you got on please..........

[TVP993]

911perv said:

jackal said:

TVP993 said:

Thanks all.

Jackal where is the best place to buy some mounts?

jackal said:

c2 fluid
c4 mixtuire of fluid and solid
rs solid
Wevo take an extra set of teeth

as always, see my webiste

Peter at GTone and tell him i sent you and ask for 10% off. 01932 569 911

And if you fit the RS ones as OC says think about upgrading the engine carrier at some point, eps. if you do trackdays

And let us know how you got on please..........

I have decided to go for the C4 mounts as RS ones might be a little too hard ride wise. Will let you know what their like when I get the car back next week.

[TVP993]

Thanks Jackal.

jackal said:

TVP993 said:

Thanks all.




Jackal where is the best place to buy some mounts?

jackal said:

c2 fluid
c4 mixtuire of fluid and solid
rs solid
Wevo take an extra set of teeth

as always, see my webiste

Peter at GTone and tell him i sent you and ask for 10% off. 01932 569 911

And if you fit the RS ones as OC says think about upgrading the engine carrier at some point, eps. if you do trackdays

[aceparts]

Can someone explain why changing the engine mounts changes the handling / feel? I'm lost as I can't see how!

[jackal]

aceparts said:

Can someone explain why changing the engine mounts changes the handling / feel? I'm lost as I can't see how!

when they are loose the whole engine is swaying around all over the place in the back of the car

once you sort them the car even feels more stable moving along in traffic at 10mph, let alone turning into Pouhon at 100mph+

the difference is enourmous

[cragswinter]

cragswinter said:

Hmmm interestin reading,
my c4 has a slight shimmy (this is the only way I can describe it?) when sat at tickover. The car doesn't shake so much but you can feel the engine beating away from side to side. To be honest I just thought that the engine mounts could do with being replaced but could it be that it's the norm on a c4?

possibly related but I'm also getting hartech to change the gearbox oil as when the car is cold the gear change can drag slightly, not crunch or anything but you really gave to be slow.
Hartech (baz) didn't see any relation between this & the engine mounts as he'd never connected the two problems & thought that as I have no problem with the clutch it sounded like the gearbox oil was possibly the wrong grade or had an additive that thickens it up meaning the synchros can't do there thing when cold as the oil is just too thick.
Read your website jackel & thought I might as well get the mounts done at the same time. Any ideas if this sounds like your problem when you decided to get yours done?

[TVP993]

when are you getting yours done craig?

Getting mine done on Tuesday so will let you know how I get on.

cragswinter said:

cragswinter said:

Hmmm interestin reading,
my c4 has a slight shimmy (this is the only way I can describe it?) when sat at tickover. The car doesn't shake so much but you can feel the engine beating away from side to side. To be honest I just thought that the engine mounts could do with being replaced but could it be that it's the norm on a c4?

possibly related but I'm also getting hartech to change the gearbox oil as when the car is cold the gear change can drag slightly, not crunch or anything but you really gave to be slow.
Hartech (baz) didn't see any relation between this & the engine mounts as he'd never connected the two problems & thought that as I have no problem with the clutch it sounded like the gearbox oil was possibly the wrong grade or had an additive that thickens it up meaning the synchros can't do there thing when cold as the oil is just too thick.
Read your website jackel & thought I might as well get the mounts done at the same time. Any ideas if this sounds like your problem when you decided to get yours done?

[cragswinter]

Going down to oulton a week on Wednesday so thought I'd call in at hartech on the way there,let them have a look at the mounts & take it from there.
The joys of not living anywhere near to a Porsche garage!

Eta
tvp are you getting any symptoms of mount failure or are you just replacing as part of regular maintenance?

Edited by cragswinter on Sunday 18th July 17:19