Can any one tell me why the gear ratios in Volvo Penta drives have so many differences in ratio yet have no apparent standard ratio for each horsepower engine. Such as 1.66, 1.79, 1.82. It seems like they would have standard sizes such as outboard motors having 50 H.P. then a 60 h.p., then a 75...
Concerning the different ratios. Can anyone tell me why there are different ratios that are so close to each other rather than just a standard ratio significantly apart from each other?
Please don't misunderstand what I am asking, to be more accurate in what I'm asking I'll use an example with...
Does anyone know how to identify a ratio for a drive by tooth count or any other ways?
I need a ratio of 2.18 to 1 lower end of a VolvoPenta, it goes on a Volvo 3.0 in line 4 cyl. I'm trying to buy a lower unit for it. It seems that some people when dealing in these parts only go by the count of...
I have a 3.0 gs mefs Volvo with an SX -M drive w/ a ratio of 2.15. I also have another SX-M drive with a ratio of 1.51. What do I need to change to make the 1.51 ratio compatible with the 2.15?
I looked thru the last 10 pages or so hoping to find the answers but I hadn't yet. My question is; when removing the housing from the lower gear case to replace the prop shaft seal and o-rings, does the housing unscrew? Because I seen on the housing 3 bolt holes leaving me to believe that might...
I have a volvo 3.0 gs mefs with a sx outdrive. The problem I have is an oil leak coming from the lower unit in front of the prop. I'm sure that is due to a bad prop shaft seal. My question is, can I expect to change anything else with that or is it commonly just the 2 dollar seal. Should I be...
