Fonda Jet Drive Engine Linkage

[ijw1234]

Hi all

I've just acquired a Fonda jet boat (previous owners project) and am in the the process of rebuilding it.

Unfortunatly the previous owner was not the greatest of engineers and has bodged quite a few things

The question i have is: How is the engine usually connected to the jet drive?

At the moment the linkage is made with a single UJ (engine is a 3.5 Rover V8) this seems a little dodgy to me as it will allow for no angular missalignment which will happen when the engine rock on its mounts!

If anyone with a similiar boat could tell me of how theirs is constructed i would appreciate it (may be i'm just be overly fussy - i just don't want it to break when i'm several miles from shore!!!)

Thanks.
Ian

[martin mc]

Hi Ian,
I have a fonda jet boat driven by a 3.0L Ford V6 engine the jet drive is coupled to the crank shaft of the engine via a rubber coupling. The rubber prevents the engine vibration being transmitted down into the drive. What sort of a drive unit do you have? I am currently having problems with mine trying to source parts but not having much luck.

Martin..

[Jetset]

Ian,

I'm at the point of trying to design my coupling for a rover V8 to hamilton jet drive and I would have the same reservations with using a single UJ coupling especially without any rubber torsional dampener.
Have a look at the Ultrajet site www.ultradynamics.com it's very comprehensive on many different topics, incl couplings and alignment. I found it very useful.

Regards

Paul.

p.s. Let me know how you get on. Cheers.

[bullet]

The boat is having its engine replaced and we need to replace the flexible rubber drive coupling, can any one tell me where we can get a suitable replacement for a dateline bikini(ford v6, jet drive unknown but has west end written on it). Thanks in advance, Will

[jim lee]

Typically, here in the us, you hook the jet to the engine using what's know as an "H-Bar". Here a link to a selection of them.

http://www.cpperformance.com/product...nes/h-bars.htm

Hope this helps.

-jim lee