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1  Mower Building / Setup Help / Driveline / Re: 820 brakes on: April 17, 2015, 01:58:16 PM

   If you are only using one rotor, you will need to either lock your differential or install a one-piece axle.

   You will need someone with machine-shop capabilities -- a lathe and/or a Bridgeport mill -- to center everything accurately.

   I would not weld to the axle -- weld the rotor hub to the wheel hub.

2  General / Coffee Shop / Re: Chip Ganassi's secret tunnel on: April 16, 2015, 08:14:32 PM
   A great story, but...

   Unfortunately, Larry Webster, the story's author, has a major inaccuracy in the geographics of this story.  He says, "Two of America's greatest racing enterprises have major ties to Pennsylvania."  

   Actually, it's three.

   Just south of Pittsburgh, off I-79, is the town of Canonsburg, PA, where Don Yenko did his magic with Corvair Corsas and Chevy Camaros in the late-'60s.  His Yenko Chevrolet dealership worked closely with Chevrolet to make these performers available to the motoring-enthusiast public, especially the racers.  And they're still holding their own on the Vintage Racing circuits...

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
3  Mower Building / Setup Help / Driveline / Re: Belt Guides, Both Pulleys? on: March 26, 2015, 08:10:29 PM

Put the guides as close to the pulleys as you can without hitting

   The best arrangement is to put two guides by each pulley, 1/8" from the outer edge, at 90 degrees from the pulley-to-pulley centerline.  Do not put guides at the ends of the pulleys -- it will interfere with allowing the belt to slacken for proper shifting.

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
4  Mower Building / Setup Help / Driveline / Re: Browning H-Series Hub & Pulley? on: March 25, 2015, 08:56:17 PM
   W. W. Grainger should carry these Taper-Lok pulleys and hubs.

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
5  General / Coffee Shop / Re: Phil Bonner Thunderbolt found on: March 25, 2015, 08:51:16 PM
   I saw one of these Thunderbolts up close and personal in the mid-'70s.  The Service Manager for the local AMC dealer I worked for had connections and was able to buy one.  The last I saw it was in the Eastern Cincinnati suburb of Fairfax.  Light metallic blue.  A real sleeper.  Impressive.  The engine resembled a scale version of the OHC Fords the WWII Sherman M-3 tanks used.

6  Mower Building / Setup Help / Driveline / Re: Peerless Part Numbers on: March 13, 2015, 12:26:07 PM
The larger gear will not fit inside of the gearbox, so what I have now won't work.

The individual I bought this gearbox from has promised to build a new one, with the Peerless 820 gearset as listed above. Hopefully they make it right with me.


   You're most welcome.  It sounds like you have a working relationship with the individual who built your gearbox, which is good. 
   Remember...the 820 Bevel Drive Pinion (P/N 778245) uses the 5-piece needle-style thrust-bearing assembly between the back of the bevel pinion and the case.  I can get you the part numbers for this assembly, if you need them.

   What kind of lube are you going to use in this gearbox?

7  Mower Building / Setup Help / Driveline / Re: 700 gear id on: March 12, 2015, 08:16:23 PM
If I have to replace practically all of the gears, I might as well purchase one already set up. Thanks RoMow

   You're most welcome.  I agree.  The best 700 for the money is the 700-139 BoNewCo sells on here -- it's a 700 specifically built by Peerless for racing:  http://www.heymow.com/index.php?topic=29288.0 .  There's also a Post on here somewhere with complete details about this transmission: All steel gears; needle bearings on the mainshaft; both-side output shaft; etc...  You get what you pay for.

8  General / Coffee Shop / Re: WONDERFUL DAY on: March 12, 2015, 08:01:50 PM
   "The bad news is that time flies (and the older we get, the faster it flies); the Good News is that we are the pilots."
9  Mower Building / Setup Help / Driveline / Re: 700 gear id on: March 12, 2015, 05:38:38 PM

   Is Russo an individual or a transmission supplier?  Contact Russo and EC, and ask them whether they are heat-treated cut-steel gears or powdered metal.  If steel, what alloy and Rockwell hardness?
   From your pictures and the number "stampings", they look like powdered-metal gears.  Most of the gears in the stock Peerless 700-023 are powdered metal.

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
10  Mower Building / Setup Help / Driveline / Re: Peerless Part Numbers on: March 12, 2015, 05:26:50 PM

   You're most welcome.  Yes, hindsight is always 20/20.

   Excellent racing philosophy!  If it's mechanical, it can break.  As for fixing it, you may need to remachine the output shaft location.

   The 778246 Driven Bevel Gear for the 820 is 3.248"-3.250" OD (not quite 1/4" larger OD than the 778334); width 0.517"-0.519". And yes, the splines are the same. 

11  Mower Building / Setup Help / Driveline / Re: Peerless Part Numbers on: March 12, 2015, 01:22:28 PM
Now my questions:
1. From my research, I can replace the input bevel 778113A with 778153 to get a true steel gear, and not the pressed style. Is this correct?
2. Is there a steel replacement available for the output bevel 778334?
3. Are my part numbers accurate for the description of each that I have given?
4. What is a good, online source for the various Peerless parts I need?

1.  Yes, as George mentioned, the 778153 can replace the 778113A.  However, if you are using it for racing, you should replace the 778113A with the 778176 Bevel Pinion that uses the 780071 needle-style Thrust Bearing.  You will also need 2) 780072 bearing-race Thrust Washers.
2.  No, there is no steel (ST) replacement for the powdered metal (PM) 778334.  All the MST gears are PM.
3.  Yes, your part numbers were accurate -- thanks!
4.  My online store is www.ROMs-Peerless-Transaxle-Supply.ecrater.com , but you can email me direct if you'd like -- much easier. 

   The main problem with your right-angle gearbox, and the reason I suspect the other owner sold it, is the Reply I just got from Peerless Engineering when I asked the compatibility of the 778113A  (and the 778153 / 778176 substitutes) Pinion and the 778334 Driven Bevel Gear:
"The Pitch is different on these 2 gears.  They will not work together."
  So...unless you just want to experiment and see how long this gearbox will last before it self-destructs, you will need to use the 42-Tooth 778154 ST mating 700 Bevel Gear with your Input Pinion, which will make your ratio 3:1, or, if you want a ratio closer to the 2.14:1 ratio you have with your current mismatched gears, use the 13-Tooth 778245 and 33-Tooth 778246 Bevel Gears from the 820s, which will give you a 2.54:1 ratio.  Either of these combinations will likely require you to rework your gearbox case, as these correct-gear centerlines will not comform to your mismatched gears.

   I keep all the above-listed gears and shaft in stock, as well as many others, and if you would want to send your shaft and bevel gears to me for verification, I can confirm what you have.

Respectfully, Rodney
12  Mower Building / Setup Help / Driveline / Re: Peerless Part Numbers on: March 11, 2015, 08:37:13 PM

   I will check on this and get back to you tomorrow.  And I will be happy to sell you anything you need Peerless related.  My email address is in my Profile.

Rodney Rom
   Peerless Gear Master Technician
Rom's Reworks
4276 NE State Route H
Butler, MO  64730-9346
13  For Sale / Trannys / Axles / Wheels / Re: Used 639A Peerless Transmission on: March 10, 2015, 11:35:27 AM

   I've torched the wheels and tires off this transaxle, and can now ship it.  Whoever wants it for $40.00 shipping and handling within the continental U.S. can have it.

   Email me directly (address in Profile) if you want pictures.

Sincerely, Rodney
14  For Sale / Want To Buy / Who Has It? / Re: Peerless 700 needed badly on: March 08, 2015, 08:33:46 PM

   http://www.heymow.com/index.php?topic=29288.0 .  These are "stock" racing transmissions.  Worth the $300.00.

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO 
15  General / Coffee Shop / Vari-drives on: March 06, 2015, 02:09:58 PM

   USLMRA rules for Drivelines specifically exclude vari-drives (mistakenly misspelled "veri-drives") for the Junior Prepared (JP) and IMOW (I) Classes.  However, the IMOW Class states, "1) TYPE: Must be a full-size lawn tractor, front engine, with steering column behind motor, stamped steel frame and manufactured as such..." 

   So...what are JP- and I-Class racers to do who have one of the later-model Husqvarnas, Sears/Craftsmans, or Poulan mowers that come with the General Transmissions' polymer-case vari-drive transaxles?  If they replace the transaxle with a gear-drive, non-vari-drive gearbox, the mower will no longer be "manufactured as such."

   The Prepared Classes only state "Driveline may be modified from the engine pulley to the rear wheels, but must utilize a shiftable
lawnmower transmission or transaxle." 
Since the General Transmission transaxle can be shifted, this is apparently okay in these Classes.

   I'm not sure how these new vari-drive transaxles will withstand the rigors of racing, but since experimentation and trial-and-error is the basis for most of what we do, and since most racers start out in the "less-expensive" classes, racers need to be allowed to experiment with them.

   Time to modify the rules...?

Respectfully; Rodney Rom; Rom's Reworks; Butler, MO
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