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Hisun 400 UTV leak from side of transmission

Davo

By Davo
in Hisun UTV SxS Forum

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Davo Apprentice

Davo

Posted
Posted

I have a Hisun 400 UTV that has developed a sneaky oil leak from the end of the black plastic thing protruding from the side of what I think is the transmission on the driver’s side. Looking for any guidance or advice as to what this thing is and whether it’s fixable.

19D7F52D-3F9E-4E7E-ADCA-A5C718B1B161.jpeg

6A58271E-9308-4786-8A21-1AFF25260971.jpeg

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  • 1 year later...
cliffyk Rising Star

cliffyk

Posted
Posted

Apparently at some time it was the speed sensor--I found this part on AliExpress (who I wouldn't buy from if they were the last vendor on earth):

HS400SpdSnsr-01.jpg.80f5b3c2ac5995a0b8ce04bffd9180ff.jpg

However on newer models like my 2020 and apparently the OP's 2012 the active speed sensor is on the rear reducer and there's that crappy plastic cover on the crankcase.

I think on the 2012 the reducer mounts with the "flat" side on the right and the sensor is on the left--don't know when or why it was "flipped", but it seems to coincide with the engine being changed to the rear slanting cylinder.

a 2020 model from Coleman's site:

HS400SpdSnsr-03.jpg.f165b9c39debe8980d3e4d0444ae8e2e.jpg

HS400SpdSnsr-02.jpg.b15fd265968fed9bcc42191252b79111.jpg

yup--an undated, I think pre-2018 HS400:

HS400SpdSnsr-04.jpg.69f6befbf684118864a6b67da2a50617.jpg

I'd pull the plug out, make sure it's intact, clean it well and put it back together with a good dose of Permatex's Ultra-Grey gasket maker (best I've ever used--the crankcae on my 2003 Suzi Burgman 400 was reassembled with that 5 years and 26k  miles ago) --if it is cracked use some of JB Weld' high temp stuff to fix it:

permatexultragrey.jpeg.10f63ee94d9385c93d5fb8bbbe0efd14.jpeg

 

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