Ron m

Hi all, i have just acquired a 30 ft narrow boat fitted with a sigma diesel cooker , water boiler . can anyone please tell me where I can get hold of the operating instructionsor tell me how to light it. Thanks Ron

Hi Daisy sorry for the delay in replying, it looks ok & if it is running so much the better, if you are still interested I will pm you my number Regards Ron

It is the marine version

Hi Daisy I have a couple of 4108 perkins with gearboxes & I would be interested in px ing the 4203. Ron

Just an update to everyone who posted, ST2 now fitted & running with a big improvement in performance as expected but the exhaust is rather smokey so I think it is going to be heads off & injectors serviced. thanks for all your help. Ron

I was thinking about this ,It looks as if you turn the selector hub round the balls are being driven the opposite way & that will reverse the direction of the servo action. I looked in the parts list & there is no mention of different parts for different rotation. Does anyone know if this can be done. I have stripped it down once to put new bearings & seals in as it had been in seawater for a while & to strip it again would not be a problem

Hi Chris sorry for the delay in replying, the flywheel worked great, the problem now is that it is clockwise rotation at the flywheel end & the gearbox I have is a Hurth for a marine st2 which is anticlockwise & the hurth wont run backwards as it wont engage the plates, Regards Ron

ok thanks

Sounds good where abuts are you located & what price are you thinking of ? Do you know the internal diameter of the ring gear with a tape measure the lip on the st is 13.5 inches .

I will try to source a ring gear first then I can sell the SR & gearbox as a complete unit ( if the starter ring does not cost more than they are worth)

Hi, there is a machined step on the flywheel which looks to be in the right place & is 13.5 inches approx in diameter

Yes that is my view , looking back to the post in may 2012 the prop was not considered to be a problem then. The LM100 is a 2 to 1 reduction the hurth is very close to this anyway so I was thinking suck it & see

I have tried adjusting it & the crosshaft is free I have made a gear linkage assembly with a 15 gear lever which is near to hand & doesn't take up as much floor space

Hi guys ,thanks for your interest, the reason for swapping the flywheel was to avoid buying a new ring gear for the ST2 but if it is a big problem then I will have to bite the bullet & buy one. The pros. & cons. of swapping the engines were discussed on this forum on may 23 2012 & seemed to come out in favor of the ST2. I have checked the rotation & they are both anticlockwise, as for just swapping the gearbox, this was my original plan as the SR2 is in good condition but it takes a lot of effort to select forward gear.To fit the hurth I will have to refabricate the rear engine mounting brackets anyway. As to the need for more power ,the boat has a max speed of just under 4mph & I want at some point to do the Ribble link so I would like to have a bit of power in reserve. Thanks Ron