'tropical' water pump pulley.

[wanderer4x4]

Hi Guys - not normally on this part of the forum, but maybe someone here can help me. I'm running a Mercedes engine (240D) as a conversion in another 4x4, and I'd like to get the water pump to spin faster, for rockcrawling. I know there was a 'tropical' package available for the 404 series Unimogs with the M180 engine that had a faster ratio for the water pump drive. I also know of the 404 series, 240D powered mogs specced for Angola, so I'd assume that if the gas kit wont work on the diesel, that theres a seperate kit...So far as sedans go, the 220/230 engines have pulleys that cross over to the 240D engines, and I'm guessing that the tropical kit is probably the same.


so - anyone here have a 'tropical' pulley they'd be interested in selling, or have an idea about where/how to buy, or build the requisite smaller pulley? ( or did they change the crank pulley, to make the pump & alternator spin faster ??)

any help, advice, or suggestions would be greatly appreciated.

Thanks
Chris

91 Niva 'Cossack', MB 240D, 4 speed auto, ~88:1 low, 30x9's, coil sprung, 830 RTI.

[The_Sandman_454]

<font face="Comic sans MS">Seems like any decent machine shop could make a new smaller pulley for it... [img]images/icons/crazy.gif[/img] </font>

[wanderer4x4]

getting it made isnt really the problem - but the local places want way too much $$$ to do it properly. Unlike N.American pulleys, it's not just a flat disk with spacers - the pulley has a 3" cone shaped snout to clear the long water pump drive.
If I can find the Mercedes piece, it's likely to be cheaper, and I know its done right.

chris

[The_Sandman_454]

&lt;font face="Comic Sans MS"&gt;I thought I'd seen some fitting that description used on some of the Big 3 (GM Phord or Dodge). Not sure if the offsets were *that* big but I do recall that some do have a pretty fair sized offset. Might want to check out some aftermarket suppliers for those. Maybe JCWhitney, Summit or some others... [img]images/icons/crazy.gif[/img] &lt;/font&gt;

[wanderer4x4]

thanks for the tip - I'll have to check out the wreckers, and local places to see whats available up here ( I'm in BC, Canada, so actually GETTING some of the stuff is sometimes an issue).

Chris

[wanderer4x4]

tried DB in Germany - they no longer make the tropical kit.

Just in case anyone else was interested in teh extra cooling: I Have switched to a late model waterpump from a sedan that had A/C - the impeller is the same, but he waterpump shaft is shorter, and it uses a more conventional 'flat' pulley, so I have lots of options.

C.

[The_Sandman_454]

<font face="comic Sans MS">Glad to hear you found a solution to the problem... [img]images/icons/cool.gif[/img]</font>

[wanderer4x4]

sort of - after changing to the short pump, w/ flatter pulley design, I figured it wouldnt be too hard - looks as though DB already use a relatively small diameter pulley...nothing I've checked so far has a smaller pulley, let alone a smaller pulley w/ the right bolt patten: Guess I might end up getting it custom fabbed after all 8^P

C.

Have you tried asking around at the unimog dealers in North America? I know a couple of them who are in my unimog club, NEMAC, and they would know if one of the pully's exists, or if they don't know, they would know who to contact.

Shoot me an e-mail and I can give you their info. tim@datalimbo.com

[wanderer4x4]

actually, I used the insider track - there's a guy here in town who imports them from europe - knows the dealers, suppliers, etc. no dice, nor are tehre any availabel as military surplus from europe ( go figure, wrong climate)

I even took the part number to my mercedes supplier - and its NLA through benz. Incidetnally, I deal with Rusty Cullens in Georgia - he's a wholesale importer, who supplies most MB dealerships, and can get darn near anything, even for mogs, if you can supply the part number. his prices are DAMN good, too: most stuff for the M180 engines he has in stock, and can ship by the end of business day...rusty@mbz.org. ( sorry, i dont normally promote businesses, BUT as th MB USA approved importer, he doesnt really have any competition)

c.