TRS Outdrive Help Needed

Dragon_V · 04-18-2005, 11:41 PM

TRS Outdrive help:

Would someone please walk me through the correct process of shimming the gears in the TRS Outdrive. Mine are driven by twin 502's and the last guy that worked on them didn't have a clue.

I'll be waiting, thanks

vette131 · 04-19-2005, 12:12 AM

first you better have a good mechanical background & you need the correct special tools to set pinion depth, check bearing preload & gear backlash. buy the correct mercruiser book & good luck. the tools are quite expensive so unless your planing on doing this alot, it's probably cheaper to send it to a pro.

Open72 · 04-19-2005, 07:49 AM

you need to have them done by a compentent drive builder . 1 missed shim and kabooooom

Dragon_V · 04-19-2005, 11:32 AM

Thanks for you concern but, that was very general. First off I'm a manufacturing engineer and I have a service manual. I can machine any tools or parts that I might need. What I need is specs on the preload and a general walk-through on shiming the gears. Any help would be appreciated and thanks again for the responce.

vette131 · 04-19-2005, 02:24 PM

The Mercruiser Manual Does A Prety Good Job Of Walking You Through The Procedure As Well As Giving You Specs. What It Doesn't Give You Is The Dimensions Of The Special Tools.

Bad Girl · 04-20-2005, 11:51 AM

I have a complete set of tools for sale in the swap shop. make me a good offer on them. Before I bought these I has the same Idea. glad I didnt do it because there are far more things than just turning and milling few parts.
Ken

rws · 04-20-2005, 05:35 PM

I had no luck returning your email.Where are you located?

Rob

Dragon_V · 04-21-2005, 11:32 AM

Rob I just switched e-mail, I'll look it up and get back to ya.

Thanks,

Justin

tcelano · 04-21-2005, 10:12 PM

Dragon V,

I have gone down this road myself with a SSMIII. I am also an engineer, and have sufficient machine tools in my garage to fab anything that would be necessary to complete the job, and have the service manuals. I found it much more cost effective in terms of time, materials, and peace of mind to simply ship it off to MRD. Skip overhauled my upper, swapped gears (that I provided), and gave me a whole new U-joint assembly with a really trick anti-corrsion coating, all for $400. I've researched procuring the necessary tools, and they are horridly expensive, and only available in full sets, if at all. I'd use your talents and time designing a drive that could be serviced without all the infrastructure. If you get yours done before I get mine done, I'll buy yours...

Just my humble opinion...