Mac R-1 Restoration
Moderator: Rob Voska
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- Posts: 16
- Joined: Wed Apr 28, 2010 11:15 am
- Vintage Karting items owned: 1963 R300
196? Chaparral Enduro
197? Margay Pro X
And some new stuff no one cares about.. - User Agreement: Yes
Mac R-1 Restoration
Some of you already know about this kart from another board, figured I would share it here. I purchased this kart off a wanted add I ran a few weeks ago, I was very happy with the deal and didnt last long till I decided to get it apart for a restoration, Im taking it back to more as raced then a original new from Mac.
Im still not quite sure if it is a R-1 Or a R-300 it has a number on the lh support the brake rod goes through and a number 3 stamped on top of the seat hoop, also another number 37346322 on the front axle by the throttle pedal.
The kart is quite complete as seen it came with a single 101 engine (at one point it had twins) the uphostery has been redone but used factory pattern.
Im still not quite sure if it is a R-1 Or a R-300 it has a number on the lh support the brake rod goes through and a number 3 stamped on top of the seat hoop, also another number 37346322 on the front axle by the throttle pedal.
The kart is quite complete as seen it came with a single 101 engine (at one point it had twins) the uphostery has been redone but used factory pattern.
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- Posts: 16
- Joined: Wed Apr 28, 2010 11:15 am
- Vintage Karting items owned: 1963 R300
196? Chaparral Enduro
197? Margay Pro X
And some new stuff no one cares about.. - User Agreement: Yes
Re: Mac R-1 Restoration
I took the Kart down to my hobby shop for a tear down and rebuild, I bagged and tagged everything and boxed it up. The floor pan was quite beat so a new one is in order, I kept the rear section in the lower seat hoop and will just weld it at the base.
This wheel is going back on.
Bag and Tag
Cut line
This wheel is going back on.
Bag and Tag
Cut line
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- Posts: 16
- Joined: Wed Apr 28, 2010 11:15 am
- Vintage Karting items owned: 1963 R300
196? Chaparral Enduro
197? Margay Pro X
And some new stuff no one cares about.. - User Agreement: Yes
Re: Mac R-1 Restoration
Took it out back for a blasting.
Closer inspection showed some damage under the rear frame mount. The kart has been raced hard some gussets have been added and they are staying.
Closer inspection showed some damage under the rear frame mount. The kart has been raced hard some gussets have been added and they are staying.
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- Posts: 16
- Joined: Wed Apr 28, 2010 11:15 am
- Vintage Karting items owned: 1963 R300
196? Chaparral Enduro
197? Margay Pro X
And some new stuff no one cares about.. - User Agreement: Yes
Re: Mac R-1 Restoration
I decided to go a little heavier on the pan than oem, I thought this old kart has been doing alot of flexing over the years and thought it would help with the rigidity, the original looked to be 20 guage .0359 I went with 18 guage .0478
Fitting the pan.
Pan installed.
I sanded the pan before installation, makes life a little easier later.
Fitting the pan.
Pan installed.
I sanded the pan before installation, makes life a little easier later.
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- Posts: 16
- Joined: Wed Apr 28, 2010 11:15 am
- Vintage Karting items owned: 1963 R300
196? Chaparral Enduro
197? Margay Pro X
And some new stuff no one cares about.. - User Agreement: Yes
Re: Mac R-1 Restoration
Number stamp on front axle, I didn't notice it until first prime and was stating to wet sand, figure I better snap a shot
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- Posts: 222
- Joined: Fri Jun 22, 2007 3:51 am
- Vintage Karting items owned: '66 Chap, '61 Bug Stinger, '61 McCulloch R-1, '60 Go Kart 800, '60 Bug Wasp, '60 Weirdo
Re: Mac R-1 Restoration
Hey Jeff-
Looking good! It's almost certainly a R-300, with the giveaway being the tabs on the front axle- in those go bolts to keep the steering from going over center. R1s didn't have them, the R-300s did.
Keep us posted on the progress!
Dean
Looking good! It's almost certainly a R-300, with the giveaway being the tabs on the front axle- in those go bolts to keep the steering from going over center. R1s didn't have them, the R-300s did.
Keep us posted on the progress!
Dean
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- Posts: 16
- Joined: Wed Apr 28, 2010 11:15 am
- Vintage Karting items owned: 1963 R300
196? Chaparral Enduro
197? Margay Pro X
And some new stuff no one cares about.. - User Agreement: Yes
Re: Mac R-1 Restoration
The tabs are oem, the gussets have been added but tabs appear stock by welds.
The main frame is ready for paint second prime with PPG K-36
I fount this interesting the rear frame section that unbolts has the same number as on the front, I have not seen this posted on any other Mac resto.
The main frame is ready for paint second prime with PPG K-36
I fount this interesting the rear frame section that unbolts has the same number as on the front, I have not seen this posted on any other Mac resto.
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- Posts: 16
- Joined: Wed Apr 28, 2010 11:15 am
- Vintage Karting items owned: 1963 R300
196? Chaparral Enduro
197? Margay Pro X
And some new stuff no one cares about.. - User Agreement: Yes
Re: Mac R-1 Restoration
I was getting some stuff togeather tonight to send to chrome, I was real worried about letting those pedals out of my sight and have never had good luck on a re chrome on cast, So I decided to go to the dirty room fire up the old polish wheel and see what I coud do with what I have. This is the outcome out of some almost half century old chrome
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- Posts: 16
- Joined: Wed Apr 28, 2010 11:15 am
- Vintage Karting items owned: 1963 R300
196? Chaparral Enduro
197? Margay Pro X
And some new stuff no one cares about.. - User Agreement: Yes
Re: Mac R-1 Restoration
BIG FLAKE!! Pics dont show it well very bright in the sun..