Introduction and Questions

[WolfMann]

Thank you Johnboy VA for the insight. I'm starting to think I should add the 3/4 rod just for some extra peace of mind. It would be neat to see whose upgraded axles and how it worked out for them.

[WolfMann]

I'm looking around now, but just to double check, if I want to add bearings to the inner frame I'm looking for the two bolt flange bearings with callout HCFL207-20? And it would be better to find them with the locking collar instead of set screws?

[ARGOJIM]

That bearing will work, you will have to likely square up the one inner rail. As far as locking collar or set screw, either one, I would either use a knurled set screw or dimple the axle with a dogged or pointed set screw and use locktite on either.

[WolfMann]

Got it, thank you ArgoJim.

[BlueCheetah]

Hi everyone! Brit here and I'm new to the amphibious atv world. Just purchased a 2008 Max IV with 127 hrs on machine. Have not been able to use it due to the previous owner removing the engine to use on a surface drive mud boat, who then sold it to someone else where it sat untouched, who then sold it to me. Need help with determining a decent motor size to put back in it. I intended on first putting a 28 HP air cooled Hatz 790 diesel in it that I have laying in my shop, but at almost 400 lbs, it may be a little heavy , plus the clutch size I have is 1" output shaft and the diesel is 1"7/16. I'm down here in the Southern Louisiana marsh and thinking lighter may be better (some really Bad marsh here), and that brings me to my next dilemma "Tracks". I've found a used (as in never even been used) set of Rubber tracks for a 2015 Max Buffalo truck for the asking price of $1500, and that includes: 6 new 21" tires and rims with support bar rails, bearing cages and wheel extensions. Tracks are 4 hrs away, and I've only seen pictures. Would anyone know if these tracks would even fit. The Max IV and Buffalo truck look about the same frame, but not sure,, or would I just be better off with the lighter adair tracks every ones talking about here " $3600 price quote". The original owner used this MAX IV as a floating duck blind, so I also have a set of 25" dual wheels and extensions that came with machine. Since I have yet to repower machine, not sure how duals would even work in this floating tundra type marsh. Sorry for this lengthy intro and confusion. Just looking for some" been there, done that guidance"... Thanks everyone Brit.

[ARGOJIM]

The track deal is good but they will not swim.
Check your serial number on the Max page, later iv came with 27 or 29 Kawasaki efi engines which are getting hard to find, 23hp or better briggs or kohler are a good choice. Some diesels have been installed but rpms and clutching have been isuues, weight is alot that high in the air. Duals are worth a try and a report back would be informative for others.

Personally I would try to put it back stock and shake it down from there for ease and a good base point.