Mariner 10hp year & Primer question

PeterM · 18 February 2012, 16:35

After a 400 mile cruise to Essex and back I now have avery nice 10hp Mariner. Serial number is OP025566 , but as my main PC 'wont start' I cant get to find the year yet or the impellor number

Other question is about the primer......seem slike when you pull the knob it should press down on a small blue 'button' on the side of the carb to ( I assume ) pump fuel in for starting ..but the blue bit is stuck. There are 4 screws to take out to ( I assume) get to a diaphram under the cover which may be the culprit - not a biggy but just after some knowledgable guidance.

A squirt of petrol in the carb and it fired up fine 1st pull !!!

PIcs to follow.

uncle al · 18 February 2012, 17:11

yes there is a repair kit available be carefull as there is a small ball bearing in the bottom of that small pump, if that is left out or lost it will run very rich,i would also recomend that you put a SMALL dab of grease on the screws when you are ready to re-fit them,team tip it is an easy job and clean the carb as well at the same time.

Nos4r2 · 18 February 2012, 17:19

Got a pic? I may have a pdf manual for you.

uncle al · 18 February 2012, 17:21

its also a 1999/2000 model year when or if it was registered i cannot see on the factory web site

PeterM · 18 February 2012, 18:39

Cheers guys .A few pics attached of the offending primer & engine .. currently on Avon rover ona little trailer ....a bit of fun ...

NO sign of any bearing in there...primer has come off with no drama . got the spring to hold the diaphram up ....but just wont move at all !

Is it bad if I just get the hammer out....

PeterM · 18 February 2012, 18:50

Quote:

Originally Posted by uncle al

yes there is a repair kit available be carefull as there is a small ball bearing in the bottom of that small pump, if that is left out or lost it will run very rich,i would also recomend that you put a SMALL dab of grease on the screws when you are ready to re-fit them,team tip it is an easy job and clean the carb as well at the same time.

Cheers Al - seems like this is part 1395-8237072.... not cheap ! but at least I can see it now the PC is working (ish) .

What on earth has caused it to seize ? Any milage in trying to free it ? The gasket seems fine just blue plastic locked into the top housing....

uncle al · 19 February 2012, 10:58

free it of as it is there to help with removing the flat spot on acceleration and to inject extra fuel when using the choke and there should be a small ball bearing inside,the reason for siezing is usually water in the fuel

Boats&Outboards · 19 February 2012, 11:35

Pete

Where did you get the serial number from as the transom bracket is not from the same leg - or has the leg been re-sprayed.

What does the core plug read ?

PeterM · 19 February 2012, 12:46

Quote:

Originally Posted by Boats&Outboards

Pete

Where did you get the serial number from as the transom bracket is not from the same leg - or has the leg been re-sprayed.

What does the core plug read ?

Serial number is from the core plug.....Its defo had the bracket replaced at some point . I have 'been told' the engine & boat is an ex ' beach rescue' boat from somewhere (maybe Essex way) and engine & boat show signs of that .

But will keep me off the streets for a few weeks fixing things ...

PeterM · 19 February 2012, 12:48

Quote:

Originally Posted by uncle al

free it of as it is there to help with removing the flat spot on acceleration and to inject extra fuel when using the choke and there should be a small ball bearing inside,the reason for siezing is usually water in the fuel

Cheers Al , have tried all the 'soft' methods for freeing it .....do I resort to harder taps with a hammer now ?

uncle al · 19 February 2012, 14:29

it is a delicate go gently with it , gentle and patient, and the ball bearing should be on top of the spring when you remove the brass plug on the bottom

PeterM · 19 February 2012, 16:02

Quote:

Originally Posted by uncle al

it is a delicate go gently with it , gentle and patient, and the ball bearing should be on top of the spring when you remove the brass plug on the bottom

Hmm - am thinking we have wires crossed...

I undid the four screw on the corners of the cover , this then lifted off leaving the spring in the housing ( on the carb) . The blue plastic 'bit' that is supposed to move, but isn't - was stuck fast in the cover.

Blue plastic bit ( plunger ? ) has a needle on the bottom that clearly drops into a 'hole' when priming and it also holds the diaphram between two plastic washers - which force the deiaphram up/down and suck fuel ...

Some gentle (ish) tapping removed it and freed it

. Starts first time now .. just need to get the impellor , find some water and off we go !