Tegheim - Home made 4 rotor Wolvo 142

Tegheim · 11-30-2013, 11:12 AM

The build continues.
Bought standard lock rings, but couldn't let them be standard.
Grinded them from 2.5 and 3mm with friendly tolerance to 2.00mm

The it was time for the grooves. Did them +0.03 to +0.05mm in height to get the right feeling. They are easy to install, and sits solid when released.

Tegheim · 01-01-2014, 01:28 PM

Have modified an old front bearing for test.

A keyway as well.

Tegheim · 01-08-2014, 03:14 PM

First of all I'm very proud to annouce this link

http://www.build-threads.com/general...uilds-of-2013/

Back on topic.
Builded some new benches to work on, and then started to assembly the dummy again to put back in the car for some measurements.

Tonight I was out on the highway and meet a friendly truckdriver from Czech Republic. He had brought a 20B flexplate from hIGGI on the Rx7Club-forum. Thanks alot for that hIGGi!

Also got some V-band-clamps today. Perfect size. Small and tight, just like we want them.

N.RotaryTech · 01-08-2014, 07:21 PM

V-band might have vacuum leaks.

RICE RACING · 01-08-2014, 07:27 PM

Quote:

Originally Posted by N.RotaryTech

V-band might have vacuum leaks.

Nothing a recessed O'ring grove machined into the face with small O section O ring will not fix

Easy solution did very similar on multiple similar joins in a physics lab when I was machinist there

Tegheim · 01-09-2014, 05:01 AM

Notice that this is just a test-housing. The port insert are in steel in this one just to get the shape.

When satisfied, its going to be aluminium with o-rings :-)

Force13b · 01-15-2014, 03:05 PM

Tegheim seriously 1 of the best threads ever!

Fendamonky · 01-25-2014, 10:41 AM

I just read this whole thread from the beginning...all I can say is WOW!!! The thought and work going into this is incredible!

Tegheim · 03-25-2014, 11:11 AM

Not much is happening at the moment.

I shortened my steering rack at last. Cut 220mm of an let 200mm be left.

Took some M24-nuts and machined out the threads. Then put them over my 4-link rods for adjustments later on. Just a little work with the TIG, and they are ready for some paint.

Are going with these 15.99mm solid dowels straight through the engine. Better off than the OEM.

Tegheim · 04-12-2014, 12:49 PM

Bought some Ø10.0mm Chromemoly 4340-bars.
Cut them in correct lenght and cnc-turned M10x1 thread in both ends.
I use Grade 10-nuts and harderned washers to hold the engine in place.

Tegheim · 04-13-2014, 11:17 AM

Todays work was the peripheralport-sleeves.
Cut some Ø80mm alu and threaded them M65x2.

Next step is to machine the rotorhousings.

chibikougan · 04-13-2014, 12:58 PM

Tegheim · 04-20-2014, 11:32 AM

Moment of truth, or point of no return for these housings...

The original "oil-nozzle" must be removed before milling or else my tool, or my housing will be broken.

Started with a M10-bolt and drilled a Ø4.2mm hole to allign the drill.
Threaded M5, and pulled it out with some washers and a M5-bolt.

Machined a Ø63mm hole for the thread, and then removed all stuff the pointed out form the housing.

All done. Next step is the inserts!

Tegheim · 04-27-2014, 03:45 AM

Yesterday I continued with my Peripheral-inserts.
Because they are threaded into the housings there is imported to get the D-shape in the right angle to align with the pre-machined D-shape in the housings.
The D-shape closest to the housing are bigger than the round hole and the runners, so therefore I need to machine this with the inserts on the side.

I could have done a round hole in the center, and port the sleeves by hand. But I'm really not a "handyman"

And CNC-port are in my opinion the coolest.

It worked out pretty well! I was really nervous when I mounted the first insert...

I very satisfied.

Next is to deside how to couple the inserts with the runners, and also how my runners will look like, size and lenght. Butterfly-throttles or slides.

chibikougan · 04-27-2014, 12:59 PM

Rotar Cave!

01-08-2014, 07:21 PM	#379
N.RotaryTech Home-brew Rotary Join Date: Feb 2008 Location: GooseCreek SC iTrader: (0) Posts: 552 Rep Power: 17	V-band might have vacuum leaks. __________________ '89 RX7 GTU, half-Bridge-port S4/S5 NA, E6K, Full RB exhaust, weekend warrior. '83 RX7, The "this might take awhile" project. '87 RX7 GXL, Rest In Pieces. '98 Subaru Impreza Outback-sport, rx7 rescue vehicle, down for repair. '94 Ford Ranger, daily.

11-30-2013, 11:12 AM	#376
Tegheim Rotary Fanatic Join Date: Feb 2011 iTrader: (0) Posts: 210 Rep Power: 14	The build continues. Bought standard lock rings, but couldn't let them be standard. Grinded them from 2.5 and 3mm with friendly tolerance to 2.00mm The it was time for the grooves. Did them +0.03 to +0.05mm in height to get the right feeling. They are easy to install, and sits solid when released.

01-01-2014, 01:28 PM	#377
Tegheim Rotary Fanatic Join Date: Feb 2011 iTrader: (0) Posts: 210 Rep Power: 14	Have modified an old front bearing for test. A keyway as well.

01-08-2014, 03:14 PM	#378
Tegheim Rotary Fanatic Join Date: Feb 2011 iTrader: (0) Posts: 210 Rep Power: 14	First of all I'm very proud to annouce this link http://www.build-threads.com/general...uilds-of-2013/ Back on topic. Builded some new benches to work on, and then started to assembly the dummy again to put back in the car for some measurements. Tonight I was out on the highway and meet a friendly truckdriver from Czech Republic. He had brought a 20B flexplate from hIGGI on the Rx7Club-forum. Thanks alot for that hIGGi! Also got some V-band-clamps today. Perfect size. Small and tight, just like we want them.

01-09-2014, 05:01 AM	#381
Tegheim Rotary Fanatic Join Date: Feb 2011 iTrader: (0) Posts: 210 Rep Power: 14	Notice that this is just a test-housing. The port insert are in steel in this one just to get the shape. When satisfied, its going to be aluminium with o-rings :-)

01-15-2014, 03:05 PM	#382
Force13b cxxxx\|::::::::::::> Join Date: Nov 2009 iTrader: (1) Posts: 315 Rep Power: 16	Tegheim seriously 1 of the best threads ever!

03-25-2014, 11:11 AM	#384
Tegheim Rotary Fanatic Join Date: Feb 2011 iTrader: (0) Posts: 210 Rep Power: 14	Not much is happening at the moment. I shortened my steering rack at last. Cut 220mm of an let 200mm be left. Took some M24-nuts and machined out the threads. Then put them over my 4-link rods for adjustments later on. Just a little work with the TIG, and they are ready for some paint. Are going with these 15.99mm solid dowels straight through the engine. Better off than the OEM.

04-12-2014, 12:49 PM	#385
Tegheim Rotary Fanatic Join Date: Feb 2011 iTrader: (0) Posts: 210 Rep Power: 14	Bought some Ø10.0mm Chromemoly 4340-bars. Cut them in correct lenght and cnc-turned M10x1 thread in both ends. I use Grade 10-nuts and harderned washers to hold the engine in place.

04-13-2014, 11:17 AM	#386
Tegheim Rotary Fanatic Join Date: Feb 2011 iTrader: (0) Posts: 210 Rep Power: 14	Todays work was the peripheralport-sleeves. Cut some Ø80mm alu and threaded them M65x2. Next step is to machine the rotorhousings.

04-20-2014, 11:32 AM	#388
Tegheim Rotary Fanatic Join Date: Feb 2011 iTrader: (0) Posts: 210 Rep Power: 14	Moment of truth, or point of no return for these housings... The original "oil-nozzle" must be removed before milling or else my tool, or my housing will be broken. Started with a M10-bolt and drilled a Ø4.2mm hole to allign the drill. Threaded M5, and pulled it out with some washers and a M5-bolt. Machined a Ø63mm hole for the thread, and then removed all stuff the pointed out form the housing. All done. Next step is the inserts!

04-27-2014, 03:45 AM	#389
Tegheim Rotary Fanatic Join Date: Feb 2011 iTrader: (0) Posts: 210 Rep Power: 14	Yesterday I continued with my Peripheral-inserts. Because they are threaded into the housings there is imported to get the D-shape in the right angle to align with the pre-machined D-shape in the housings. The D-shape closest to the housing are bigger than the round hole and the runners, so therefore I need to machine this with the inserts on the side. I could have done a round hole in the center, and port the sleeves by hand. But I'm really not a "handyman" And CNC-port are in my opinion the coolest. It worked out pretty well! I was really nervous when I mounted the first insert... I very satisfied. Next is to deside how to couple the inserts with the runners, and also how my runners will look like, size and lenght. Butterfly-throttles or slides.