Replaced 997 Engine Mounts – My Thoughts
01-26-2018, 12:46 AM
#31
I did the mounts as well, my idle really did not change all that much, and vibration is maybe 10% less, it was noticeable, but I can still put my hand on the passenger seat and feel strong vibrations.
05-30-2018, 02:14 PM
#34
Bumping an older thread because I just did this DIY tonight - thanks for the straightforward instructions. I also purchased the Corteco OEM-equivalents and it cost about $240 with free shipping. The only thing I would add to the prospective DIY-er is, after removal of the old mount, to have a second jack handy to provide some support along the engine bracket in order to gently lift the engine bracket back up and allow for easier threading of the 18 mm bolt onto the new mount. When I was using the jack to support the engine under the drain pan, once the 18 mm was remove, the engine carrier slipped below the level of the threads so I had to jack up the engine carrier a bit with a separate jack to facilitate threading of the 18 mm nut.
So far it seems like shifting is slightly improved. I still have vibrations at idle, guess that's just the character of the car (and those FF trans inserts). My drivers side exhaust tips are hanging lower than the passenger's side, so I will have to adjust the muffler brackets this weekend.
So far it seems like shifting is slightly improved. I still have vibrations at idle, guess that's just the character of the car (and those FF trans inserts). My drivers side exhaust tips are hanging lower than the passenger's side, so I will have to adjust the muffler brackets this weekend.
It looks like PP is about $160 each for the Coretco OEMs. Suncoast sells a pair (unspecified brand) for $415.
05-30-2018, 03:17 PM
#35
Three Wheelin'
Looks like 130 each/260 for the pair from AutohausAZ, where I got it from. I think there was a sale going on when I bought them a few months ago.
https://www.autohausaz.com/pn/CC-99737504908
https://www.autohausaz.com/pn/CC-99737504908
05-30-2018, 09:38 PM
#36
Rennlist Member
I don't want to sound incredulous or detract from your positive experience but I can't fathom the correlation of the perceived changes of items 1 & 4 and the changing of motor mounts.
I can understand that items 2 & 3 can be directly attributable to the change but 1 & 4 seem to be more a product a better tuned engine, change in fuel, etc. and which have nothing to do with motor mounts.
I can understand that items 2 & 3 can be directly attributable to the change but 1 & 4 seem to be more a product a better tuned engine, change in fuel, etc. and which have nothing to do with motor mounts.
05-30-2018, 10:14 PM
#37
I installed the Rein engine mounts from RennPart.com. They were identical to the originals except the price. $139.95 for a pair plus shipping. https://rennpart.com/product/engine-...89-12-carrera/
05-30-2018, 10:28 PM
#38
05-31-2018, 07:07 AM
#40
Originally Posted by jeebus31
Looks like 130 each/260 for the pair from AutohausAZ, where I got it from. I think there was a sale going on when I bought them a few months ago.
https://www.autohausaz.com/pn/CC-99737504908
https://www.autohausaz.com/pn/CC-99737504908
01-03-2021, 11:49 AM
#41
I decided to replace both engine mounts on my 2007 Carrera S (51K Miles). I have researched this topic and I was convinced it was time for a replacement. I am not sure if the mounts have ever been replaced by previous owner but based on the ones I pulled off it would be safe to assume that they weren’t. I was led to this decision because of the following reasons.
1. Excessive vibration, I could visually see the passenger seat vibrating at idle.
2. Throttle response at low speeds from a stop would feel slightly sluggish or delayed.
3. Exhaust tips appeared to hang lower than it should especially when compared to old photos.
I decided to purchase the Corteco engine mounts (997-375-049-08) from RMEuropean.com total cost was $253.19 with shipping. From all the research I gathered, these are the same OEM suppliers that provide the mounts to Porsche. If you look at the photos attached, the old mounts have developed a permanent elongation. This elongation was actually worse when installed. After installing the new mounts, I could tell the difference immediately. I drive my 911 every day and even a subtle change I think I would notice. I know some people on this forum are skeptical about replacing the engine mounts and that the benefits would go unnoticed but this really depends on how often you drive your 911. I think that someone that drives their 911 every single day would notice the improvements much more than someone that didn’t. The new engine mounts fixed the following issues for me.
1. Startup takes less time, I wasn’t expecting this improvement.
2. Vibration and cabin noise is reduced at idle.
3. Exhaust tips appear to hang much better in relations to the valance.
4. Throttle response is definitely improved in low and high speeds.
1. Excessive vibration, I could visually see the passenger seat vibrating at idle.
2. Throttle response at low speeds from a stop would feel slightly sluggish or delayed.
3. Exhaust tips appeared to hang lower than it should especially when compared to old photos.
I decided to purchase the Corteco engine mounts (997-375-049-08) from RMEuropean.com total cost was $253.19 with shipping. From all the research I gathered, these are the same OEM suppliers that provide the mounts to Porsche. If you look at the photos attached, the old mounts have developed a permanent elongation. This elongation was actually worse when installed. After installing the new mounts, I could tell the difference immediately. I drive my 911 every day and even a subtle change I think I would notice. I know some people on this forum are skeptical about replacing the engine mounts and that the benefits would go unnoticed but this really depends on how often you drive your 911. I think that someone that drives their 911 every single day would notice the improvements much more than someone that didn’t. The new engine mounts fixed the following issues for me.
1. Startup takes less time, I wasn’t expecting this improvement.
2. Vibration and cabin noise is reduced at idle.
3. Exhaust tips appear to hang much better in relations to the valance.
4. Throttle response is definitely improved in low and high speeds.
01-03-2021, 11:53 AM
#42
I decided to replace both engine mounts on my 2007 Carrera S (51K Miles). I have researched this topic and I was convinced it was time for a replacement. I am not sure if the mounts have ever been replaced by previous owner but based on the ones I pulled off it would be safe to assume that they weren’t. I was led to this decision because of the following reasons.
1. Excessive vibration, I could visually see the passenger seat vibrating at idle.
2. Throttle response at low speeds from a stop would feel slightly sluggish or delayed.
3. Exhaust tips appeared to hang lower than it should especially when compared to old photos.
I decided to purchase the Corteco engine mounts (997-375-049-08) from RMEuropean.com total cost was $253.19 with shipping. From all the research I gathered, these are the same OEM suppliers that provide the mounts to Porsche. If you look at the photos attached, the old mounts have developed a permanent elongation. This elongation was actually worse when installed. After installing the new mounts, I could tell the difference immediately. I drive my 911 every day and even a subtle change I think I would notice. I know some people on this forum are skeptical about replacing the engine mounts and that the benefits would go unnoticed but this really depends on how often you drive your 911. I think that someone that drives their 911 every single day would notice the improvements much more than someone that didn’t. The new engine mounts fixed the following issues for me.
1. Startup takes less time, I wasn’t expecting this improvement.
2. Vibration and cabin noise is reduced at idle.
3. Exhaust tips appear to hang much better in relations to the valance.
4. Throttle response is definitely improved in low and high speeds.
1. Excessive vibration, I could visually see the passenger seat vibrating at idle.
2. Throttle response at low speeds from a stop would feel slightly sluggish or delayed.
3. Exhaust tips appeared to hang lower than it should especially when compared to old photos.
I decided to purchase the Corteco engine mounts (997-375-049-08) from RMEuropean.com total cost was $253.19 with shipping. From all the research I gathered, these are the same OEM suppliers that provide the mounts to Porsche. If you look at the photos attached, the old mounts have developed a permanent elongation. This elongation was actually worse when installed. After installing the new mounts, I could tell the difference immediately. I drive my 911 every day and even a subtle change I think I would notice. I know some people on this forum are skeptical about replacing the engine mounts and that the benefits would go unnoticed but this really depends on how often you drive your 911. I think that someone that drives their 911 every single day would notice the improvements much more than someone that didn’t. The new engine mounts fixed the following issues for me.
1. Startup takes less time, I wasn’t expecting this improvement.
2. Vibration and cabin noise is reduced at idle.
3. Exhaust tips appear to hang much better in relations to the valance.
4. Throttle response is definitely improved in low and high speeds.
01-03-2021, 12:21 PM
#43
Rennlist Member
05-18-2021, 03:29 PM
#44
Advanced
05-18-2021, 08:53 PM
#45
I just replaced mine on my 2011 997.2 with 29K miles, only due to age. The weren't "shot", but for sure they were tired from holding the engine up for the past decade. I replaced them with FF mounts, and love the result - a bit more grumble at 3000-3800 rpm, better sound, better shifting, and much tighter around the turns. Well worth it.
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vokain (05-18-2021)