Help Please.

twostrokenut · Post by **twostrokenut** » Wed May 02, 2007 5:01 pm

Hello everyone , new to this forum , my first teaser is.... I'm attempting to convert a Seagull from long to shortshaft.
How much do I have to cut of..
A the drive shaft
B the driveshaft tube
C the cooling pipe
D the exhaust tube.

Many thanks.

Andy Frost.

Charles UK · Post by **Charles UK** » Wed May 02, 2007 6:41 pm

This is a how long is a piece of string question.

How long do you need it to be when you've finished & how long is it now, take one from the other, & that is your answer.

Remove the same amount from all four items!

Katomi · Post by **Katomi** » Wed May 02, 2007 7:02 pm

what long shaft is it.. I haave a short shaft silver centery would exchange for long shaft version or another 40 plus
Stephen

twostrokenut · Post by **twostrokenut** » Wed May 02, 2007 8:59 pm

I'm assuming it's at present a " normal " longshaft , as I have another spare exhaust tube that also came from a longshaft that is of identical length , I merely want to change it to a " normal " shortshaft , just wondering how much needs removing , I've used standard shortshafts on my boat before with no problems.

Andy.

StephenRT · Post by **StephenRT** » Wed May 02, 2007 9:50 pm

You don't mention which model you have.If it is a Forty or Century the information you need may be here. http://www.saving-old-seagulls.co.uk/im ... 0sheet.JPG
Steve

twostrokenut · Post by **twostrokenut** » Wed May 02, 2007 10:22 pm

StephenRT wrote:You don't mention which model you have.If it is a Forty or Century the information you need may be here. http://www.saving-old-seagulls.co.uk/im ... 0sheet.JPG
Steve

Thanks for that , I'm even more confused now......... I've just measured my shaft and it's 27" long
As far as I know it's a Century , could someone with a shortshaft please tell me the length of their exhaust tube , that should give me the starting point.
Thanks Andy.

Katomi · Post by **Katomi** » Wed May 02, 2007 10:53 pm

Andy I will exchange a short shaft stright swap for that long shaft of yours if interested
it it a ws the year code is G2 (think thats july 72)
I have a boat that needs a long shaft I have a 40 plus a sweet thing
and a silver centery plus
rather that see a long shaft altered I offer a swap
Stephen

twostrokenut · Post by **twostrokenut** » Thu May 03, 2007 5:23 pm

Katomi wrote:Andy I will exchange a short shaft stright swap for that long shaft of yours if interested
it it a ws the year code is G2 (think thats july 72)
I have a boat that needs a long shaft I have a 40 plus a sweet thing
and a silver centery plus
rather that see a long shaft altered I offer a swap
Stephen

Stephen , you're obviously alot more familiar with Seagulls than me , the numbers on mine are WL 1910F7 , whatever that makes it . I have stripped this down and mechanically it seems in very good order , whereabouts in the UK are you ??

Andy.

Vic · Post by **Vic** » Thu May 03, 2007 9:52 pm

You can check out the model and age on the main website under ID your engine.
There is an easier to use but less comprehensive guide atThis site

I make it a 1967 (July) Century 100 longshaft.

(W=Century 100, L=longshaft, F7=August'67)

According to my parts list the standard drive shaft is 20Â¾" and the long shaft 26Â¾" (and are the same parts as for the 40 plus models)

So if you want to alter yours you cut 6" off all the parts you listed ie reduce the drive shaft casing from 24Â½ to 18Â½, silencer tube from 22Â¼ to 16Â¼ and the water pipe from 23Â½ to 17Â½.

BUT then the engine number will be wrong!

twostrokenut · Post by **twostrokenut** » Thu May 03, 2007 10:04 pm

Vic wrote:You can check out the model and age on the main website under ID your engine.
There is an easier to use but less comprehensive guide atThis site

I make it a 1967 (July) Century 100 longshaft.

(W=Century 100, L=longshaft, F7=August'67)

According to my parts list the standard drive shaft is 20Â¾" and the long shaft 26Â¾" (and are the same parts as for the 40 plus models)

So if you want to alter yours you cut 6" off all the parts you listed ie reduce the drive shaft casing from 24Â½ to 18Â½, silencer tube from 22Â¼ to 16Â¼ and the water pipe from 23Â½ to 17Â½.

BUT then the engine number will be wrong!

Vic , many thanks for that , I'm aware it will not be original , but it will only be used for a cruise on a lazy summers day , when I like to hear and enjoy some of my vintage stuff.
Again many thanks.

Andy.

Katomi · Post by **Katomi** » Fri May 04, 2007 12:57 am

Andy
I am in fareham hants I move this w/e and when on line again on monday I will pm you my phone number so you can call
StephEN