Merv Posted 4October, 2019 Report Share Posted 4October, 2019 I am thinking I will replace my transmission mounts on the G50. There are many threads suggesting that you have to buy the whole cross member or send the existing one to WEVO. Seems crazy. Various folk recommend these below. I am keen to get rubber mounts however, if possible. Any experience with this job? Quote Link to comment Share on other sites More sharing options...
9er Posted 4October, 2019 Report Share Posted 4October, 2019 Merv, I would not recommend poly unless you have no regard for NVH. Got a feeling the original G50 mounts may be vulcanised in place, so removal will be the hardest part of the process. Quote Link to comment Share on other sites More sharing options...
Merv Posted 5October, 2019 Author Report Share Posted 5October, 2019 Thanks Chris. Yes they are formed in place originally. Getting them out would involve a heat torch I suspect. I have checked the bushings in there now. The rubber seems intact, in good condition and is not split or cracked. There is however, about a 2mm gap between the top of the bushing and the top retaining washer when the car is hanging on my hoist. When I put a jack under the transmission this gap closes and re-appears at the bottom of the bushing. I guess this means that they need replacing? Does SuperPro (Australian company) have some history on these cars? Quote Link to comment Share on other sites More sharing options...
Merv Posted 5October, 2019 Author Report Share Posted 5October, 2019 Has anyone used the Rennline mounts and can comment on the NVH aspect. They at least seem to have some rubber in them? Quote Link to comment Share on other sites More sharing options...
Merv Posted 6October, 2019 Author Report Share Posted 6October, 2019 Well, I pulled the tranny mount off today and the bushings are rubber and don't seem in bad shape. That does not, however, confirm that they are sufficiently 'fat' in profile. Looking at them I am not sure if they are original or not (car has done 150kms). They appear to be one-piece inserts? Possibly "CFM" (and another logo in a Triangle that I don't know) if I read the letters on the enlarged second image correctly (https://www.c-f-m.com/performanceparts/pc/Mounts-Bushings-c557.htm). Any ideas? Merv Quote Link to comment Share on other sites More sharing options...
81SC Posted 6October, 2019 Report Share Posted 6October, 2019 3 hours ago, Merv said: (and another logo in a Triangle that I don't know) Any ideas? Merv Merv, The triangle logo is what Porsche use on their parts, that is the letter P in the triangle. Quote Link to comment Share on other sites More sharing options...
Merv Posted 6October, 2019 Author Report Share Posted 6October, 2019 Duh, it did look familiar 🙃. So I will be ordering some Rennline or SuperPro bushings, when I can manage to ignore the crazy freight costs from the US. I have contacted SuperPro in Australia. They are based in Brisbane. Quote Link to comment Share on other sites More sharing options...
P-Kay Posted 6October, 2019 Report Share Posted 6October, 2019 I used SuperPro for both my engine and gearbox. As Chris mentioned above, it's just the removal of the old rubber. Reasonably straight forward really. You only need to cut the lip from the one side before pushing it through, quick clean, grease and put the two halves together! Can't really comment on NHV, as my car is a little angry, with harder rubber, noisy exhaust etc. Quote Link to comment Share on other sites More sharing options...
Merv Posted 6October, 2019 Author Report Share Posted 6October, 2019 Thanks PK. It would be nice to use an Australian company. It would very helpful if you could recall which bushings you used? Is your car a G50? I suspect it is these: https://www.sparesbox.com.au/part/superpro-front-engine-mount-bush-kit-fits-porsche-spf3863k I assume that the same bushings fit engine and transmission mounts? Will contact them tomorrow to see what they have. Quote Link to comment Share on other sites More sharing options...
P-Kay Posted 6October, 2019 Report Share Posted 6October, 2019 They look like it My car is an SC , so it's a 915 and yes, same for both engine and gearbox Quote Link to comment Share on other sites More sharing options...
Merv Posted 6October, 2019 Author Report Share Posted 6October, 2019 Will check that with them. They say on their 'site that 3863K is for G50. Quote Link to comment Share on other sites More sharing options...
Merv Posted 12October, 2019 Author Report Share Posted 12October, 2019 After speaking with the folk at SuperPro (good to have a knowledgeable local company based in Brisbane!) I went for a set of their bushings designed for the G50. They assure that NVH is not a problem and provide a lifetime warranty. The kit arrived with appropriate silicone paste and good instructions and there were enough for BOTH front and rear mounts. I did them all and drilled out the original compressed rubber bushings. Measurements before and after show the new bushings to be thicker than the exhausted originals and the gap (between the curved washers and the bushings) that was there before is gone. Easy job really and the bushings fitted perfectly. The car is no noisier or harsher to my ears and the shifting is much sharper. So far I am extremely pleased with the result. firstone, Peter M and Dalai 3 Quote Link to comment Share on other sites More sharing options...
firstone Posted 12October, 2019 Report Share Posted 12October, 2019 Awesome result. I would probably left them in there. So you've schooled me. Great that you shared this. Cheers Quote Link to comment Share on other sites More sharing options...
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