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  • November 25, 2020, 04:20:06 AM

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Author Topic: Fox 36 Mk 4-5 ABC sets  (Read 1002 times)

Online Brian Gardner

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Fox 36 Mk 4-5 ABC sets
« on: March 05, 2020, 04:16:30 PM »
EDITED

I've been asked again if I would do a run of Fox 36 Mk 4-5.

Again, I'm happy to do these if there are enough numbers. WE HAVE ENOUGH NUMBERS

They will be stock Mk V timing and include piston/liner/rod/pin/head shims/backplate gasket.

Also doing Tyndal double bubble head buttons to suit stock long reach plugs, and also Nelson head buttons. So let me know if you want either or both.

Piston/liner/rod/pin/shim sets will be approximately $115 to $125 Australian dollars. Don't know what the head buttons will be $.

So anyone wanting extra parts such as head buttons, rods, additional backplate gaskets needs to let me know so I cater sufficiently.




Brian
« Last Edit: October 05, 2020, 05:16:36 PM by Brian Gardner »


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Offline C.T. Schaefer

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Re: Fox 36 Mk 4-6
« Reply #1 on: March 06, 2020, 05:32:16 AM »
Brian, I will take one set and would strongly recommend standard spec.  C. T. Schaefer

Offline John Given

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Re: Fox 36 Mk 4-6
« Reply #2 on: March 06, 2020, 07:36:43 AM »
Iím in for two or more

Offline Al Ferraro

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Re: Fox 36 Mk 4-6
« Reply #3 on: March 06, 2020, 10:04:01 AM »
     I'm in for two.
Al

Offline Michael Foster

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Re: Fox 36 Mk 4-6
« Reply #4 on: March 06, 2020, 03:12:58 PM »
Brian

I'll take 4,

If the Wiley spec makes more power SUPER

If not standard is fine

Mike

PS  If Brian does cylinder heads I would take 6 to 8 of them

Mike  :) :)
« Last Edit: March 08, 2020, 07:30:12 AM by Michael Foster »

Online kenneth cook

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Re: Fox 36 Mk 4-6
« Reply #5 on: March 06, 2020, 05:24:59 PM »
                 I agree, keep it stock but do all the series from the MK 3 fit to the MK6? Al, without me taking mine apart is the crank the only difference in the MK6? I know the diameter is bigger but the crankpin is still the same with the same stroke? 

Offline John Given

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Re: Fox 36 Mk 4-6
« Reply #6 on: March 07, 2020, 08:35:22 AM »
Hi Brian.

What is the minimum number to make this happen.

OK to share this on the MACA FB page?

Offline Paul Smith

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Re: Fox 36 Mk 4-6
« Reply #7 on: March 07, 2020, 08:53:51 AM »
I assume that you are writing about replacement piston & cylinder sets for the Fox Mark 4, 5, and 6?

Please state your price.
Paul Smith

Offline Fredvon4

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Re: Fox 36 Mk 4-6
« Reply #8 on: March 07, 2020, 10:27:35 AM »
4 and 6....5 is a failed anomaly

I tried  twice to get Brian to do Fox 36 MK IV..MK VI  internals....never got enough pre orders and argument with Jeff Dawson and I about stock timing vs Willy ...Jeff wanted more aggressive Willy dimensions....I wanted stock better parts

I still have several NIB Fox 36 MKVI.....sold a butt load of my Marvin Denny FOX 36 IV/VI s to a  guy in Oz
I am out--- not ordering.....but if  Brian needs a factory Fox 36 MK IV...(with "C" on port side) I can send the sample for measuring

editd in.....BTW..Brian occasionally includes heads and gasket/shims....someone should send a Tyndall Hemi head to replicate...C.T Shafer can elaborate I bet....

and if someone wants or needs a stock new MK VI...make an offer
"A good scare teaches more than good advice"

Fred von Gortler IV

Offline John Given

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Re: Fox 36 Mk 4-6
« Reply #9 on: March 07, 2020, 01:04:36 PM »
The Mk. VI P&L will also fit in a Mk. VII, correct?

OK to share this thread on the MACA FB page?

Online Brian Gardner

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Re: Fox 36 Mk 4-6
« Reply #10 on: March 07, 2020, 04:51:30 PM »
I need 20 units ordered minimum.

Price would be approx. $115 to $125 Australian dollars (plus shipping). That is for piston/liner/rod/pin/shims.

If you want some different head inserts that will be extra (not sure how much yet).

I don't have experience specific to this engine, so it is up to you guys to come to a consensus as to what you want and supply  preferable 2 sample engines.

OK to share to other places, but I don't want to be chasing around various noticeboards etc to collate numbers. So I'd prefer all requests on here.

Brian
« Last Edit: March 12, 2020, 10:23:29 PM by Brian Gardner »

Offline Fredvon4

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Re: Fox 36 Mk 4-6
« Reply #11 on: March 07, 2020, 06:37:28 PM »
ok to share...I tend to think....never owned one..that Fox 36 Mk VII  (Mark Seven AAC) had more changes and not real compatible internals like MK IV ---MK VI

Brian is NOT offering to do MKVII internals... firstly too few example out in the real world vs MK IVs  and MKVIs

if the 20 pre orders lack one or two I will ask for one set....
"A good scare teaches more than good advice"

Fred von Gortler IV

Offline Al Ferraro

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Re: Fox 36 Mk 4-6
« Reply #12 on: March 07, 2020, 09:13:05 PM »
The Mk. VI P&L will also fit in a Mk. VII, correct?

OK to share this thread on the MACA FB page?
  NO, the Mk VII Liner WILL NOT fit in the Mk III - Mk VI case, it has a much larger OD.
 Guys in are club would put Mk VI ABC piston & liners in their MkIII & IV engines that had the steel internals, and ran them in our Warbird racing event.
 I think using the porting in the MkVII would make a stronger running engine, but the case might have to be modified to take full of advantage of the ports.
  From what I heard,  Fox supplied a .020 liner shim for the Mk IV, to raise the timing for more power.
New head buttons with a double bubble chamber, using a Nelson or turbo plug would be cool to have, I would order at least 4.
 I personally never measured difference in the rod or crank pin between the MkIII to MKVI engines, but the the bore is the same from MkIII to MkVII. The Mk VII has a much larger crank pin.

The MkIV Crank will fit in the MKIII. The Mk VI and MkVII cranks only fit their specific engine.
Al


Online kenneth cook

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Re: Fox 36 Mk 4-6
« Reply #13 on: March 08, 2020, 06:32:58 AM »
           This is exactly what happened the first go around. I has asked Brian about producing these due to two catastrophic losses I encountered. What I'm aware of is the MK 3 and Mk 4 use identical cases with a crankshaft difference but will interchange between both. I also believe the 4 had a needle valve option high or low.

          The 5 is a combination plain bearing and rear ball race with a completely different shaft but I noted the MK 3 cylinder and piston fits with just some very slight porting differences but it still works.

              The VI which I own two is a completely different animal which was ABC and I could be wrong here but I believe I have a 4 with VI internal piston sleeve making my 4 a abc.  So if I was to purchase what I believe is correct in my thinking, would I be covered from my MK 3's- to the 6? It certainly sounds that way.

     

Offline Lane Puckett

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Re: Fox 36 Mk 4-6
« Reply #14 on: March 08, 2020, 11:49:45 AM »
Brian,
I can supply you with a couple of new P/L'ers(2) and a new motor(1) for your project.  I'll want them back.  Also have stock and custom rods(RPM and Aussie rods) for the Mk VI if you are interested in duplicating one of those.

You REALLY need to have Don Repp weigh in on this discussion.  He can tell you exactly which direction to go.

My opinion is go with stock replacement and if folks want a different more aggressive timing then shim it and get a new head insert made. 

I have way too many motors and spares now but if I can, I want to help you help others.

Thank you,

Lane Puckett

Offline Michael Foster

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Re: Fox 36 Mk 4-6
« Reply #15 on: March 08, 2020, 06:10:07 PM »
Lane, sent you a PM

Mike

Online Brian Gardner

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #16 on: March 11, 2020, 04:20:43 PM »
OK guys, between here and direct emails I have enough people to go ahead and do a small run of these.

It would appear the consensus is stock timing.

I need a good sample engine as a loan to go ahead with this. Also any head buttons or aftermarket rods you guys want replicated.

Brian

Offline John Given

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #17 on: March 11, 2020, 07:22:19 PM »
This is great news!!!

Offline Michael Foster

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #18 on: March 12, 2020, 05:54:34 AM »
I would be in for 6 each of the better rods & improved cylinder heads

Anyone else???

Mike ;D ;D

Online Brian Gardner

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #19 on: March 12, 2020, 07:50:58 AM »
A set will include piston, liner, rod, pin, shims.

I can do head buttons and extra rods if wanted provided they are pre-requested.

Offline Dick Tyndall

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #20 on: March 12, 2020, 06:55:29 PM »
Brian, I can probably come up with one of my "double bubble" head inserts that I sold many of back in the '70's and '80's. These will fit the Fox MK III and the IV. I will dig up the drawing for these, also. These inserts were made for standard long glow plugs. I didn't make any of these for the Nelson plugs. I'll get something in the mail to you soon.


                        Dick Tyndall
                        Virginia Craftsman

Offline Lane Puckett

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #21 on: March 12, 2020, 08:38:08 PM »
Brian,
PM sent on getting you a motor and additional P/Lers for duplication.
Thank you,
Lane

Online Brian Gardner

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #22 on: March 12, 2020, 09:02:32 PM »
Thanks Dick, that would be great.

I'll send you a PM with my address.

Brian

Brian, I can probably come up with one of my "double bubble" head inserts that I sold many of back in the '70's and '80's. These will fit the Fox MK III and the IV. I will dig up the drawing for these, also. These inserts were made for standard long glow plugs. I didn't make any of these for the Nelson plugs. I'll get something in the mail to you soon.


                        Dick Tyndall
                        Virginia Craftsman

Online Brian Gardner

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #23 on: March 12, 2020, 09:11:32 PM »
Reply sent Lane.

This project has the green light fellas.

It will take a few months as it has to wait in line behind a few other projects.

Brian

Brian,
PM sent on getting you a motor and additional P/Lers for duplication.
Thank you,
Lane

Offline Michael Foster

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #24 on: March 13, 2020, 05:23:14 AM »
Brian,

Will you build the heads for Nelson plugs or will they use standard?


Mike

Offline Dick Tyndall

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #25 on: March 13, 2020, 08:12:54 AM »
  Personally, I don't see the need to make any head inserts for the Nelson plugs. Back in the day when I was making these inserts and flying Fast Combat I was using Rossi R-5 long glow plugs with 30% nitro fuel with Fox MK III's on 19 ounce foam wing airplanes and running 122 MPH. The plugs held up fine . The Rossi plugs are available from Alan Hobbs who lives in Montana. I believe the R-5's are $4.00 each. I don't think you would see much, if any performance gain by using the Nelson plug. Just my opinion.

              Dick Tyndall

Offline Michael Foster

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #26 on: March 13, 2020, 09:08:40 AM »
Good to know

Was just thinking my Nelsons & Fora's use Nelson & I have a huge pile of them y1 y1

Mike #^ #^

Online Brian Gardner

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #27 on: March 13, 2020, 10:49:24 AM »
People have asked for both the Tyndal double bubble head button and also Nelson. So I will do both.

So those that want head buttons need to let me know which type and how many to add to the list.

Brian

Offline John Given

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #28 on: March 13, 2020, 03:21:01 PM »
People have asked for both the Tyndal double bubble head button and also Nelson. So I will do both.

So those that want head buttons need to let me know which type and how many to add to the list.

Brian

3 Nelson head buttons

Offline Michael Foster

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #29 on: March 13, 2020, 04:16:08 PM »
I would be in for 6 nelson heads

Mike H^^ H^^

Online Brian Gardner

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #30 on: March 24, 2020, 12:19:08 AM »
Guys, Do you want laser cut backplate gaskets too?

Brian

Offline John Given

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #31 on: March 24, 2020, 06:25:06 AM »
Guys, Do you want laser cut backplate gaskets too?

Brian
.


Yes

Offline Al Ferraro

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #32 on: May 02, 2020, 08:13:35 PM »
 2 piston & liner sets, 4 Nelson heads, and 10 Gaskets .
Thanks Al

Online Brian Gardner

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #33 on: May 04, 2020, 08:21:27 PM »
Copy that Al

Brian

2 piston & liner sets, 4 Nelson heads, and 10 Gaskets .
Thanks Al

Offline Tom Walker

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #34 on: May 04, 2020, 08:31:14 PM »
I will order 2 P/L's, 3 Nelson head buttons, 6 gaskets. 

Online Brian Gardner

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #35 on: October 04, 2020, 06:25:14 PM »
Guys, this (and all my other projects) has been delayed due to Covid19 issues. But things are back to normal and the ball will start rolling.


I have some drawings etc for the Nelson plugs, but what is the thread?

Offline pmackenzie

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #36 on: October 04, 2020, 08:24:09 PM »
Guys, this (and all my other projects) has been delayed due to Covid19 issues. But things are back to normal and the ball will start rolling.


I have some drawings etc for the Nelson plugs, but what is the thread?

Pretty sure it is 11/32 - 32 UNEF
MAAC 8177

Offline Paul Smith

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #37 on: October 05, 2020, 07:16:32 AM »
Please post the US pricing for the Fox piston, liner and rod sets.

Isn't the Mark VI a different part set form the Mark III, IV, and V?
Paul Smith

Online Brian Gardner

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Re: Fox 36 Mk 4-6 ABC sets
« Reply #38 on: October 05, 2020, 05:17:18 PM »
Please see the edited first post in this thread.

Please post the US pricing for the Fox piston, liner and rod sets.

Isn't the Mark VI a different part set form the Mark III, IV, and V?

Offline phil c

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Re: Fox 36 Mk 4-5 ABC sets
« Reply #39 on: November 16, 2020, 06:20:11 PM »
Brian, please put me down for two sets, done long reach and 1 Nelson plug head.
phil Cartier

Online Brian Gardner

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Re: Fox 36 Mk 4-5 ABC sets
« Reply #40 on: November 17, 2020, 08:16:01 PM »
Done Phil

These are just starting to kick off. Covid19 has put me way way behind this year

Brian

Brian, please put me down for two sets, done long reach and 1 Nelson plug head.


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