universal 25xp belt

[stm]

Does anyone have a cross number for a Universal 25xp v-belt. Universal number is 300817(i think). Looks like it might be an a-40 belt. Would like to pickup locally instead of ordering.
Thanks

 

[Loren Beach]

Cross Referencing, dust, and cogs oh my

http://www.ericsonyachts.org/infoexchange/showthread.php?t=6726&referrerid=28

Prior thread with some Universal belt info.
There may be others, but searching on a short word word like "belt" is tricky with the site software, at least for me.

I may combine threads later, since this would be a good continuation, IMO.

Loren

 

[mherrcat]

I couldn't find the right belt locally and ordered from these guys:

http://kscdirect.com/search_results.php?cn=1003472&q=+GATES+RUBBER+COMPANY+BELT+

My M-18 used the 40" Gates 3VX400. Half the price of the same belt from Marine Diesel Direct.

Judging from the info on the Marine Diesel Direct site, the M-18 and the M-25 XP use the same belt. They also mention an alternative belt that is 41.6"

 

[stm]

thanks for the replies. Not really worried about saving a couple dollars, just want to be able to pick it up locally. Thanks Loren for the thread.
Seems the 25xp engines are prone to eating belts. I sailed/motored down from Maine to Annapolis and notice alot of belt dust when I got home.
I have motored less than 10 hours since my trip and the belt is starting to come apart. I doubt if I motor more than 20-25 hours per season so I don't think it's going to be a huge problem for me.

 

[Lawrence B. Lee]

Belt Tension

Loose belts can generate dust and tear up a belt in pretty short time IMHO. I wonder if the tension on your 25xp is correct. Should be one half inch play in the little beggar when she's properly installed. I have a 90 amp Leese Neville alternator on my 25xp and after 20 hours there is no dust.

FWIW,

Larry Lee
Annabelle Lee
E- 32-200
Savannah, GA

 

[Erich]

I'm picking up a spare belt tomorrow so my shopping list is one of:
Belt Gates 7400XL 9.5/10mm x 1030mm
Goodyear 15406 (11AV1015)
Dayco topdog 15400
The belt likely depends on the alternator. I have a Balmar 70 amp.
I found that one way to maximize the length of the belt life (in addition to belt tension) is to start the engine without the house batteries connected, let it warm up a bit, connect the house batteries, then ramp up the engine speed.

 

[tadslc]

Alternator Belt

Anyone have any preferences on a good alternator belt?

I've just been using one I purchased from Autozone and would like to upgrade.


Thanks,

 

[tadslc]

Wow, that was quick. I usually spend a lot of time searching the sight, for some reason I didn't this time.

 

[CSMcKillip]

The 41.6 is for the 25.

 

[Stu Jackson]

http://c34.org/bbs/index.php/topic,3667.0.html

Our website has a lot of M25 series information. Try our wiki:

http://www.c34.org/wiki/index.php?title=Diesel_Engine

 

[tadslc]

Thanks Stu,

Joined the C34 website a few days ago, much great information!

Thanks

 

[Leon Sheean]

The engine compartment of my 32-200 is quite limited and I've found it important that the belt of choice be of the "no stretch" variety, so length may not be the only concern.