Rollbar's (Slow) Mini Build.

[Rollbar]

Well I'm gathering parts and the NOS 4a084 is being shipped next week.
So far gathered up a cage and seating platforms for Peach and I. Also picked up a 20' dual axle aluminum trailer which I have to modify for the boat which will be 12'x approx 60 or 72".

So here we go on the slow build.










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[Corky]

Any progress is good progress...Looks like the rigging came off a deck-over... How wide is the trailer ?? I'd take off one of the axles for easier maneuvering you wont need it...

[Rollbar]

Any progress is good progress...Looks like the rigging came off a deck-over... How wide is the trailer ?? I'd take off one of the axles for easier maneuvering you wont need it...

The rigging is off a open boat but I will probably have to modify it or ?
The trailer is 5' wide, inside fender to inside fender.
I plan on cutting it down and lowering the fenders or using the squared off ones.
I might have to make a "L" bracket and add a 2x6 to each side of the main rail channel of the trailer for width.
One thing I like is it is very light and I can move it around the way it sits and being cut shorter, it will be nice.
Less weight for me to pull w/my Jeep CJ8/and CJ7.

[Papee]

What is the prop cage at it's widest measurement? You'll have to do a lot of mods to it but it's a start.

[Rollbar]

What is the prop cage at it's widest measurement? You'll have to do a lot of mods to it but it's a start.

Prop cage is 65" across and 66" vertical .

Not sure what size prop to run on the 084 if I go DD on a 12'x6' wide aluminum boat.

Looking into reduction gears but $700.00 is a lot right now from Arrow Prop.

I can always cut the prop cage, sleeve it, and bring it down like other builds I see, but if I can get away using what I have, then it's just better for me/less work.

P.S. The prop cage bolts to the stand and I can remove that and modify both if need be.

[Papee]

Yes, cutting the bottom off that cage would save you a lot of weight. It's going to have to come off any way. You won't have enough room front to back. You are puting in a longer 4 cyl engine where a 2 cyl was. The engine stand will also be in a different place. Adding a reduction drive will also lengthen the space needed front to back.


Edit: Also as to the dual carb idea. I was working on that idea using two carbs that were made for half of this motor. They were designed to use on the Army mules which have a two cyl engine on them. That engine is exactly half of a 084. The carbs have an eccelerator pump also.I forget the name of the carbs but I started a thread on here about it somewhere. It can be done and would work great but it's a lot of work to design an intake that will work.

This is why I went back to my original idea I had back when I first got the motor and relocating the carb throat to the verticle position.

[Rollbar]

Yes, cutting the bottom off that cage would save you a lot of weight. It's going to have to come off any way. You won't have enough room front to back. You are puting in a longer 4 cyl engine where a 2 cyl was. The engine stand will also be in a different place. Adding a reduction drive will also lengthen the space needed front to back.

Yes I was thinking the cage would have to be cut and the stand adjusted for the motor but then 90% of that work is done, or should I say 75%
I'll have to find some dimensions on a few gear drives and then when possible, when I add one, I can slide the motor forward on the stand/plate I intend to make w/slots in it to account for the prop position.

[Rollbar]

Ok received the motor today. I turned it some by hand and it is free. Now I have to figure out what I have to take off. I just wanted to post pictures of it complete/how one would receive it in case others were wondering upon purchase.














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[Rollbar]

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[Rollbar]

Have to look in the manual to find out what this bowl is for.










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[Papee]

That's the sediment bowl for gas, you won't be using it. You take off the governor and make a block off plate for it. That's about it other than taking all the shrouding off.

[Coyotes-R-Us]

I'll bet you find it to me where you put in a fuel filter or a water separator

[Rollbar]

Received to prop today. Things are coming together.








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[Papee]

What pitch blocks came with the prop? The number is written on the edge of the block. How long are the blades.

[Rollbar]

What pitch blocks came with the prop? The number is written on the edge of the block. How long are the blades.

10* pitch blocks.
3100 max rpm.
27.5" blades, total 59" I presume.






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[Rollbar]

The blades came off this boat w/a 084, he is a member here (Doozit's).

[Rollbar]

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[Rollbar]

Score!
Bought a twin jet ski trailer (excellent shape with buddy bearings and new spare) and Ultralight Full Lotus Floats with spare bladders for $100.00
Jet ski trailer is 13'. 10' to the tongue and a 3' tongue.
6'10" inside fender to fender.
Now I have to decide to keep it with minimal work needed or keep the 20' trailer and a lot of work needed. I was going to make the 20' a dual trailer for also towing a Jeep if needed.
Those Lotus floats are pretty nice so I'll have to research those because they will be for sale.














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[Doozit20]

Got lots of parts that's good. Now we just have to find you a nice hull.

[Rollbar]

I know right. I have a original 1965 CJ5 Navy Jeep w/38K original miles going to sell for $2,500.00. Give my daughter some money to help her out and then maybe find a hull sometime. Waiting for the right one. Someone told me they had a 10' and not sure what else it was but I have info coming, I think it is glass though and I really want aluminum for Fla/small motor etc.