Been a while since my last post here... I've still not been able to spend the time away from job and family to get a lot accomplished - BUT - I slowly chip away....
I've been keeping my Build-Site
http://www.GT-Forty.com as up to date as possible while I sit with Mom or winding down at home in the evening.
Latest accomplishment is the work on a remounting the Gear-Reduction starter on the G50 Transaxle to clear the RCR Chassis.
Much the same as Ron Earp and Jeff Hamilton, I have relocated my engine further forward to keep the longer G50/03 transaxle inside the body..
See this post to see the issues Ron and Jeff had and how they addressed them;
http://www.gt40s.com/forum/gt40-tech-fueling-electrics/22079-porsche-930-starter-predicament-2.html
I don't know how many pictures it will allow me to post so you may want to just check my Build-Site and click on Starter. (here's the link)
GT-Forty.com
Standard clocking
Desired clocking
A long way from bolting up here
Need a new mounting hole here
But it's kind of thin - I hope I can install a stud (bolt) from the inside but I don't know if I'll have a clearance problem with the pressure plate yet.
I used a transfer punch to locate the point on the block plate where I will run the second starter mounting bolt
Now that I figured out how to re-mount the starter, I knew that one bolt was in a thing housing and the other was extended out 4.350" from the block-plate. I needed to figure out how to control the 525 Ft Lb rated starter from twisting from the torque. Below is the beginning of what I call a Torque Strap-Clamp. It will help control the counter clockwise torque reaction of the starter and also offer some additional clamping pressure to the starter mounting boss.
I decided that I needed to extend the torque strap-clamp to the block plate where I will ultimately bolt it in place. This is the first cut as I continue designing on the fly;
Yes it's crusty old angle iron but it will work just fine.
Cleaned up some and dropped into position
Here you can see that I spent a lot of time to actually match the contours of the housings. I knew that I needed to have a very close fit with tight tolerances in order to keep it from shaking itself to bits
First cut at the spacers needed. The one on the left is just a few thousandths shorter than the height of the starter mounting boss. This will allow the torque strap-clamp to be tightened without collapsing.
The spacer on the right is alloy and is 4.350" with a 7/16" hole that will transfer the clamping force from the starter mounting boss through the spacer to the block plate.
Alloy spacer in position
I had to file reliefs in the spacer to clear the bellhousing. I kept these tolerances very close as I may decide to weld the alloy spacer to the housing in the future.
The Clamp spacer required a touch of work as well to clear the radius contour of the bend in the angle iron.
Bolts to be used are GR8 7/16 (because I have them and 12.9 metrics are a PITB to procure here).
If you check my build site, there is more information that may interest you on this as well as other parts I have fabricated for my build.