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YOUR RESEARCHDo my engine mounts need replacing?
Leading reported evidence
Replace (ln engineerin)
Performed · outcome unconfirmed
No successful repair reported for this finding.
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Performed · outcome unconfirmed · Original poster
These items were also replaced according to the seller and the receipts that were shared with me upon purchase.
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Suggestion
Looks like from your list most of the items that would need replacing have been.
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Hi all, I'm hoping the experienced folks here can weigh in on whether my engine mounts might be worn and in need of replacement � there's no record of this ever being done.
Background: this is a 1998 C2 coupe (manual) with 146,000km. My PPI flagged the following (verbatim):
"At around 35mph noise from tranny is coming. At 65mph and more it gets louder. Creaking from suspension when going over bumps or steering. Sounds like one of the ball joints. Clunking when decelerating and accelerating during higher speeds."
Of these, I've personally noticed the clunking under deceleration, which makes me wonder about the engine mounts. I haven't noticed the transmission noise, though this is the only 996 I've driven so I may not have a baseline. Photos from the rear of the car are attached � happy to provide more if helpful.
Yes I would replace the engine mounts, looks like a decent amount of sag based on the muffler tips. It won't fix all of those issues as it also sounds like suspension parts are also worn down. But new motor motors should tighten up the shifting and driving feel. They're not too hard to access and remove so you can examine them and reinstall if they're still good (which i doubt).
At that mileage there is a pretty good chance you will not only need engine mounts, but also a trans mount as well as shock mounts. The rest of the suspension may also need a refresh. Maybe, just maybe the previous owner refreshed the parts recently.
This is a list of confirmed work that has been completed at 120,000km
IMS bearing
— replaced (LN Engineerin)
Crankshaft seal (RMS)
— replaced
Clutch
— full kit replaced
Clutch slave cylinder
— replaced
These items were also replaced according to the seller and the receipts that were shared with me upon purchase.
Porsche Centre Vancouver
997-102-119-00 — Deflector
997-102-118-00 — Deflector
900-123-106-30 — Seal/O-ring (purchased twice)
996-343-792-14 — Stabilizer link
996-333-792-24 — Stabilizer link
999-073-402-01 — Pan head screw
993-113-250-03 — Sealing
993-113-245-01 — Shut-off/Check valve
900-123-011-30 — RMS seal
996-107-147-55 — AOS/Breather
997-424-010-00 — Ball joint
Pelican Parts
000-043-305-49-OEM — Manual transmission fluid SAE 75W-90 (1L)
000-043-305-75-M100 — Coolant/Antifreeze Pink G40 (1 gallon)
900-378-013-01-M100 — Water pump bolt 6x25mm
900-378-177-01-M100 — Water pump bolt 6x30mm
996-102-151-66-OEM — Belt 6K x 2115
996-106-011-S7-M244 — Water pump
996-106-013-61-M902 — Thermostat with cover and gasket
996-106-340-54-OEM — Water pump gasket
996-106-850-05-M100 — Coolant expansion tank hose (return to water pump)
996-423-210-03-M100 — Brake/clutch pedal pad
Porsche Marin / Revolution Parts
996-637-243-01 — Transmitter (key fob)
996-552-960-01 — Console hinge
964-631-620-02-01C — License lamp
RockAuto
Hella/Pagid 355009281 — Brake pads
Bilstein 24029933 — Shock/strut
I�m with GC996. Change all 3. Mine felt like the engine was jumping around when I got on it.
And I agree with all the suspension rubber. It�s all old sagging and maybe cracked. My rears were bad enough that the camber couldn�t be adjusted to simple street specs.
Good luck! These are great cars to sort out and drive. I�m 8 years in and still smile walking up to mine.
Yep. New engine mounts and new transmission Mount bushings. It's amazing how so much work is done on these and yet those parts never seem to get replaced. Consider the age of your car, irrespective of the mileage.
I am still driving the vehicle and feeling it out for any potential issues. I have watched the FCP Euro video regarding changing the motor mounts and it does not look too difficult, even without a lift.
I have realized that the passenger interior door handle does not open the door, I am a gentleman driver to all my passengers currently.
The air conditioning also does not work and with the temperatures currently that has made for hot driving conditions.
My snag list is ever growing it seems.
Today I found out there's actually an official spec for this measurement. It should be 25-26mm -'01 and 22mm from '02-
Hopefully this helps someone quantify whether they are out of spec.
This is a source reference. Confirm exact model applicability in the original material.
