Suzuki Prop Change

Lanzaboatman · 29 July 2012, 14:30

I need to change the prop on a friend´s Suzuki DF 140. Before I attempt to do so, does anyone know if any special tools are required please?

Bizzie · 29 July 2012, 15:40

Sorry, i cant help, but id b interested to know what size prop u r putting on as i too have a df 140. Thanks.

longjohn · 29 July 2012, 16:53

A a pair of pliers, some waterproof grease and big socket set or one of these - very easy job
Floating Prop Wrench - Accessories

Lanzaboatman · 29 July 2012, 19:19

Thank you both for your replies. Firstly, I´m pleased that no special tools are required!!!!!!!!!
The boat is a Bombard Explorer and the existing prop is a s/s 13 x 20. At the moment, maximum revs achieved is 5K so there is another 1k to be found!!!! We are trying to borrow another prop (13 x 19) to see what difference this makes but I think we may have to go down another inch!! I will keep yopu all posted on what transpires. Thanks for the interest!!

jyasaki · 29 July 2012, 20:02

Quote:

Originally Posted by longjohn

A a pair of pliers, some waterproof grease and big socket set or one of these - very easy job
Floating Prop Wrench - Accessories

And a block of 2x4 to keep the prop from spinning.

jky

Bizzie · 29 July 2012, 21:34

Thanks. Look forward to hearing how you get on.

longjohn · 29 July 2012, 23:51

and ideally a new split pin

Lanzaboatman · 02 August 2012, 19:27

Mud on my face here!!!! We found a suitable prop, 14 x 19, from another boat and took both props off and fitted new prop. So far, so good. The problem came when we engaged forward gear to start off and the boat went in reverse!!!!!!! This is what happens when you put a right hand prop on an engine that requires a left hand prop............ Back to the drawing board!!!!!! So, if anyone has a new or second hand 14 x 19 aluminium prop for sale suitable for a Suzuki DGF 140 please let me know!!!!!!

captnjack · 02 August 2012, 23:03

You will need to change pitch by more than 1 inch. The rule of thumb is that 2" pitch = 300-400 rpm change. So you need to change pitch by about 4"

That said the diameter and blade shape need to be exactly the same for this rule to work, most often they change a bit.

The 14x19 probably would have been worse than the 13x20 and fail to even reach 5k.