New engine for a Swamp Fox

[dezi]

Ity sure is a great feeling to do it yourself. I have rebuilt 3 bikes and now I am tearing apart my early 70's 6x6 argo for a complete rebuild. I have some wild ideas to make it my own. It sure does feel good to say "Ya I rebuilt it and ya it runs!!"

You'll have a blast and learn a lot.

[broncofiresmith]

Planning on ordering

I measured the shaft on the 16 it looks like 1 inch. On the engine it says HH16. I am planning on ordering this engine.

23hp Vanguard, Horizontal 1" x 3" Shaft, Electric & Recoil Start, Oil Filter & Cooler, Key Switch

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Product Number: 386447-0065
23hp Key Switch
Overhead Valve Design
Cast Iron Cylinder Sleeve
Mounting: Horizontal
Electric Start: Yes
Fuel Tank: no tank, has fuel pump
Shaft Size: 1"Dx3"L
Muffler: None
Height: 17.7"
Depth (Less Shaft): 12.3"
Width: 16.1"
Shipping Weight: 110 Pounds

[broncofiresmith]

Started the engine swamp and ran into a few problems. The way the swamp fox seat comes down currently will hit the engine if I leave the engine is the same spot as the old OH160, Therefore need to move the engine back then I need to get a new belt which is okay as long as I get the right size. Also found out the throttle on the OH160 was only opening about 1/2 therefore with the new engine and the throttle working right I sound see some improvment. Looking forward to taking it for a ride but it may be a few days yet.

[Mike]

There will always be something that comes up but as long as you tackle it one step at a time you will get there. Sounds like you are well on your way. By the way, what engine did you end up with?

[LarryW]

Started the engine swamp and ran into a few problems. The way the swamp fox seat comes down currently will hit the engine if I leave the engine is the same spot as the old OH160, Therefore need to move the engine back then I need to get a new belt which is okay as long as I get the right size. Also found out the throttle on the OH160 was only opening about 1/2 therefore with the new engine and the throttle working right I sound see some improvment. Looking forward to taking it for a ride but it may be a few days yet.

If you run into any probems, about a 4hr drive away, I willl help with the swap and my time, labor is free. I have done numerous swaps and I probably have the extra metal laying around here anyways. Feel free to bring it over if needed! I would love to help!

[broncofiresmith]

There will always be something that comes up but as long as you tackle it one step at a time you will get there. Sounds like you are well on your way. By the way, what engine did you end up with?

I called and talked to 600 racing a few times and was leaning toward getting the 30 horse but the lack of a rev limiter concerned me a little. I have 2 young boys and I was concerned with when they start to drive the Fox if they would be able to keep the RPM's in check so I went with the 23 horse. May save myself some headaches in the long run. Thanks for your help with everything this is a great site. Happy Holidays

If you run into any probems, about a 4hr drive away, I willl help with the swap and my time, labor is free. I have done numerous swaps and I probably have the extra metal laying around here anyways. Feel free to bring it over if needed! I would love to help!

Thank you for the offer I may beed to take you up on it. If I get through the swap ok maybe we can do some riding. Happy holidays

[broncofiresmith]

Does anyone know a part number for a 1 1/4 X 50"belt? I am going to need approx a 50" belt. The folding seat is really causing me some problems.

[Tomo]

hi
I personally own a swamp fox and currently rebuilding including rectifying all the misguided repairs
The machine has been converted to vanguard v twin and suffers the same issue . The front valve cover hits the seat but the previous owner was not real good , he cut the seat out agh agh ...........

After measuring i can confirm that a 48 --52 belt is required

To acheive best result
1/ push transmission all the way forward on its adjustment [remove chain ]
2/ lower seat
3/ push engine all the way up to seat allowing some clearance
4/ measure centre to centre distance of shafts
5/ photograph primary and secondary clutch
6/ send information to Quality Drive Systems ask for micheal
7 / information u require from QDS will be
clutch to clutch alignment [pulleys do not always run inline ]1/4 to 3/8 offset
belt length and belt width ,yes they sell belts

google qds ph number they also are agents for salsbury and cvtech

tomo

[broncofiresmith]

4000 RPM

thank you for your response. The engine is in and runs great but it was a little slow. I received some great help from the site and was told to get a green spring for a AATV from Max which I did and installed. Recreation Ind. set to put a tach on it and keep it 4000rpm's or below, which it is when there is a load on the engine but if I free throttle it will go over 4000RPM's. I think this should be okay. Any thoughts?

[mudbug3]

broncofiresmith


I would think that a red spring would have been a better choice for your Swamp Fox. I switched from the stock green spring that came stock on my Max IV to a red spring ,and I,m very happy with the results.

[broncofiresmith]

broncofiresmith


I would think that a red spring would have been a better choice for your Swamp Fox. I switched from the stock green spring that came stock on my Max IV to a red spring ,and I,m very happy with the results.

Are you talking about the T20 or the governor? I am talking about the governor.

[mudbug3]

broncofiresmith


I was referring to the T-20 clutch. Thats where I made the swap. The main reason that I changed from the green spring to the red spring on the T-20, was for more low end grunt because I,m running very agressive atv mud tires. This is what works for me in the conditions that I like to take my Max IV.

[broncofiresmith]

broncofiresmith


I was referring to the T-20 clutch. Thats where I made the swap. The main reason that I changed from the green spring to the red spring on the T-20, was for more low end grunt because I,m running very agressive atv mud tires. This is what works for me in the conditions that I like to take my Max IV.

Thank you, I am planning on that as my next upgrade. How long does it take to change out the spring?

[mudbug3]

broncofiresmith,


Changing out the spring on the T-20 clutch will take you about an hour or less if you have the T-20 already removed. A set of Swamp Fox plus, atv tires would work very well on a machine like yours. These atv tires swim about 3 mph in the water ,and provide outstanding traction and durability.

[Roger S]

Do you know how far over 4000 it will go or have you let off when it does..