Possible to ID this outboard? Been told its a mercury 40hp

Fstarocka · 28 January 2016, 20:28

Below is a pic, its all i have for now till the owner comes back to me.. i think its an early 90s mercury/mariner 2 or 4 cylinder. Ive heard very good things about these models in the racing forums, esp the 4 cyl - any input?

And its elec start if that helps..

Closest i found thus far is this:

Tim M · 28 January 2016, 20:56

Yup looks like a Mercury 40 2-stroke of that sort of vintage. Plenty of those still around which means they must be pretty solid!

Xk59D · 28 January 2016, 21:04

Bit of warning. Been around a few of those exact engines and not one of them the mounts were usable, age I guess. You can get replacements if need be but snapping bolts is a real concern. Before you buy it, check the mounts along with normal things.

Fstarocka · 28 January 2016, 21:18

thanks - yes its been serviced 100%... is it possible to tell whether its a 2 or 4 cyl version - or 3.. by the size of the cover? some 2 strokes same or more rating have tiny heads - whats that about?

Fstarocka · 28 January 2016, 21:20

Quote:

Originally Posted by Xk59D

Bit of warning. Been around a few of those exact engines and not one of them the mounts were usable, age I guess. You can get replacements if need be but snapping bolts is a real concern. Before you buy it, check the mounts along with normal things.

By mounts u mean the clamps that go onto the transom? Ill dbl check but sure they are good -

Xk59D · 28 January 2016, 21:21

Cover is large so I assume it is the bigger model, need to look at it though.

The mounts are rubber, not the clamps themselves no.

Fstarocka · 28 January 2016, 21:24

Quote:

Originally Posted by Xk59D

Cover is large so I assume it is the bigger model, need to look at it though.

The mounts are rubber, not the clamps themselves no.

Is it possible to have these fabbed? maybe injection or something? IF replacements are not available - thinking worst case here.. although this will see about 100hrs a yr max -

Xk59D · 28 January 2016, 21:29

My advice is check the usual things, compression, gear selection etc and if the mounts are shot walk away. You can buy the complete top and bottom mounts for about £300 if memory serves, but the problem will be getting them off, virtual guarantee to be seized solid and bolts snapping.

The mounts probably won't fail with use, they are rubber and simply fail through age. If they are okay then happy days.

Fstarocka · 28 January 2016, 21:41

yeah the guy is very legit - im looking at a whole 4.2m rib on trailer with 40 mariner for a mere $700.. Here things are cheap in US terms

theres a small leak somewhere, but he has pics driving it on the lake - i know hes not out to sell junk - hes guaranteed the motors been done head to toe.. anyways - not sure about the leak.. this is so short term.. just want to have some fun when im home..

Any ideas about these motors? i read the racers reckon the 40s run like other brand 50s...

any (non general) caveats with these motors or are they reliable in general terms?

Xk59D · 28 January 2016, 21:49

My mate had one until about 2 months ago, mounts were gone but he used it for a trip and took it off. So I've been around one recently and a few before that.

If you are asking is it more powerful than a 50 then the answer is, it shouldn't be! It may have more torque if more cylinders but it also has more weight so swings in round abouts.

The value for money I can't say as you know your market better than me.

If the mounts are good, compression etc then you can't ask for more really.

Fstarocka · 28 January 2016, 22:44

Think I found something nearly identical:

https://www.youtube.com/watch?v=jKRt-U43l_Q

If so then I might be onto a very nice setup..

uncle al · 29 January 2016, 14:42

has it got a serial number? if it has go on the brunswick sit download section to find the model year. count the spark plugs thats the number of cylinders.

Fstarocka · 29 January 2016, 15:25

hi - i bought another boat with a similar 60hp, but thanks anyway!