yeah, understand.. ya might wanna get tha regular oiler delete kit (check Pro Marine site) to install.. its not expensive and gives ya a cleaner look..
never did understand why on some mercs had tha bleed bibs on all 6 cylinders and some only 5???
just plug tha one that supposed ta go to and/or from tha air box.. some had tha bib and some don't.. don't know why but it is Merc soooooooooooooo.. do not interrupt tha one goin' from top ta bottom of block.. thats oil supply mixture to tha top bearing...
my experience with tha module is very limited.. i can't remember any motor i've had that we retained a functioning oiler.. not because of failure of tha oiler it was because we usually had "0" knowledge of tha motors "TRUE" past.. ie: hours, how it was maintained, ever been over heated etc...
your motor has a 16 amp system with separate reg and rectifier.. tha 40 amp stuff started in '89 with a single water cooled reg/rect... that changed to tha two 20 amp reg/rect in '92...
tha oiler information pretty much remains tha same thru all tha years up until '02.....
tha oiler module...
go to tha auto store.. buy tha cheapest electric fuel pump (3 ta 7 lb output) for a carbed car motor.. connect it as close to tha tank as possible.. it can jus be hangin' free for now.. supply side of pump go straight (no bulb) to tha carb bib that feeds them all.. plug off all lines goin to and...
'bout 4 (3 @ very min.) ta 7/8 at idle.. 14 to 'bout 21 max at speed.. preferably 14/18.. gauge will show actual pressure (pump condition), any type blockage and how tha poppet is working.. theses are my opinion only and worked for many years.. you may have one of those "ya gotta be here" ta do...
https://www.youtube.com/results?search_query=rebuilding+a+WH+series+mercury+carburetor
all wh series are basically tha same as for tha way they are rebuilt.. if yours are still factory '76 models you need ta find a set of later wh series.. tha old ones still have tha "round floats" that are...
first its a 2.4.. first 2.5 was letter "d" in '91... did you jus change tha impeller?.. needs ta be a complete water pump kit.. you need a water pressure gauge ta be able to diagnose easier.. it will pretty much tell all.
no photos showin' on my computer?.. look for any small cracks on both...
