short flex cable filling hull with water

[sampit]

I would check that FC esc that you are using for leaks to,
They were having some problems with them leaking at one time that I know of.

No problem here used this esc in many boats with out any leaks

[sampit]

Hey Sam,
Did you run the stuffing tube all the way up in the stinger until it meets the bushing?

Could be the main problem Doug i just pulled out the brass tube it was not pushed all the way down to the bushing, in fact it was a long way off
should it be pushed right down to the bush?

[rickwess]

If you are using a 9/32 stuffing tube, it won't fit into a 3/16" stinger. You will either need to use a 1/4" tube and run linerless or use a 1/4" tube insert into your 9/32" tube so you can still use a liner. Kintec sells these as brazed stuffing tubes, but they are easy enough to make.

[martin]

Sam dosnt the stinger your using have a rubber seal of some type to seal between the stuffing tube & where the stuffing tube enters the stinger. On stingers that don't have a seal I make one.

[Doug Smock]

Could be the main problem Doug i just pulled out the brass tube it was not pushed all the way down to the bushing, in fact it was a long way off
should it be pushed right down to the bush?

Yes sir. Get the stuffing tube all the way up in the stinger and you'll be far better off.

[martin]

Thanks for all the help on this one, just started working my way down the list!

Martin any idea as to where i can buy a 6mm thrust washer in the UK as Rumdog suggests i should use on the out runner motor, cant find a 6mm one .

Sam 6mm thrust bearings are quite difficult to get in the UK, go to rcbearings.co.uk he has them in stock & is a good guy to deal with, they have 6x12x4.5 @ £2.99 or 6x14x5 @ £2.45 + postage which the last bearings I got I think postage was £1 or £1.50.

[sampit]

Thanks Martin

Just about to order a Thrust washer from rcbearings.co.uk 6x14x4.5
but if the shaft on the T600 motor is 6mm will I need to find a bearing at 6.2mm? or is the shaft 5.8mm so it will accepts a 6mm collect?
I am not near the motor right now so I cant measure it. also dose anyone know the size of the bolts the mount the T600, would like to order two that are a little bit shorter than the one I have at the moment but just got lucky with a few I had but thet are a bit to long are they M5 ?

[martin]

Sam on thrust or ballraces the allowances are made on the motor shaft for example on 5mm shafts the ballraces are 5mm id & the shaft is ground 4.97 - 4.98mm. Think about it if all spindles or shafts were full size ie 5mm you would never get the shaft into a ballrace, I know yours is 6mm but used 5mm as an example as that's what I have handy.

[sampit]

Great, I thought that might be the case Martin, makes perfect sense just thought i would double cheeck. i will order one now.
Does the thrust need to tight against the collet and the motor mount,or do i leave a mm or two or does it need to bind all the time,if that makes any sense.

[martin]

If you do leave a gap make sure its less than the end play their is on the motor shaft otherwise the thrust bearing isn't doing anything as the motor ballrace will still be taking the load & not the thrust bearing. I generally just leave a few thou clearance gap, once under load theirs no gap.

[sampit]

OK thanks I have just ordered one, we will see how it goes.
Im not that happy with my stainless 6mm 3 piece collect I have, but they are even harder to find in the UK 2 piece even harder to find!
what i have done is locktighted with 638 the 3rd piece of the collet to make it a two piece a bit of a bodge i know, but have no other options, as I can never remove the 3 piece collects from the shaft.
might try some Anti seize paste,if i can find any at the right price, damm that stuff is expensive, would copper grease do?

one last question T600 1400kv Timing would 11 degress be about right?

[martin]

Fightercat recommend 5-15 degrees for their T600 motors, I believe these to be the same motors as the HK T600 both made by Suppo.

[martin]

Re 6mm 2 piece couplings in the UK, Model Marine Supplies stock Octura 6mm x .187" @ £11.95 + post, Speak to Tony another one of the good guys to deal with. Not sure on the length you can get in your boat but these are 35mm long o/a.

[Mattwarner]

Tonys also good at props as well, ive ordered a few off him in the past.

[785boats]

Sam.
Martin made a valid point in post#19. I'm not sure if you saw it as you haven't made a comment on it.

Most stingers have a gap between them and the transom. The base of the stinger then acts like a scoop if it is not sealed.
A bit of silicone sealer will fix it. But as Martin said a simple seal can be made.
I use a piece of soft silicone tube that fits over the stuffing tube & into the stinger which compresses as the stinger is bolted on to the transom. .
Here's a couple of pics.
One shows the piece of tube in the stinger, with the piece of nitro muffler extension tube it was cut from, sitting on the trim tab.
The other pic shows it all bolted up.
Silicone sealant is easier if you don't want to remove the strut.
I normally run the brass stuffing tube into the strut but this boat was a RTR thing & that's how it was installed. Only just exiting the transom.

Cheers.
Paul.