quad engines

Engine's, injection, valve's, timing, crank's etc..

Moderators: Dan J, Diesel Dave, Crazymanneil, Stuart

Post Reply
gilburton
I luv the smell of Diesel...
Posts: 761
Joined: Sat Apr 21, 2007 11:35 am
Location: UK northants

quad engines

Post by gilburton »

Anyone had a look at a diesel quad to see if the engines are any good for bikes?? Also the cvt might be useful?
User avatar
coachgeo
I luv the smell of Diesel...
Posts: 2002
Joined: Sun Feb 22, 2009 6:00 am
Location: USA Ohio, Above Cincinnati, Close to Dayton

Re: quad engines

Post by coachgeo »

the quads diesel engines are typical 3cyl diesels used in many machines. Briggs/Diahatsu, maybe some Mitsubishi, some Kohler too. Others too. Might be good source for used CVT's in some area's.
User avatar
Stuart
Site Admin
Posts: 2227
Joined: Fri Dec 01, 2006 9:08 pm
Location: Horsham West Sussex, England
Contact:

Re: quad engines

Post by Stuart »

Brydman knows a bit about the Polaris engine (I think :?: ). It has been mentioned on here. Try having a search about. It's multifuel and if I recall the 2001 onwards are better than what went before.
pietenpol2002
I luv the smell of Diesel...
Posts: 778
Joined: Wed Dec 05, 2007 6:56 pm
Location: Goshen, IN USA

Re: quad engines

Post by pietenpol2002 »

The example below (which is reportedly slated for production) utilizes the Chinese V-twin diesel and a curious "2 speed CVT".

http://www.tonymachinery.com/machinery- ... arket.html
Ron
XLerate
I luv the smell of Diesel...
Posts: 280
Joined: Tue Sep 20, 2011 8:58 pm
Location: California

Re: quad engines

Post by XLerate »

On either the Kubota or the Briggs/Daihatsu, can't remember which, there was a turbo version & non-turbo version. The turbo had a stonger crank than non-turbos which are well known for crank breakage. Non-turbo is maybe cast, turbo is machined/forged.
User avatar
coachgeo
I luv the smell of Diesel...
Posts: 2002
Joined: Sun Feb 22, 2009 6:00 am
Location: USA Ohio, Above Cincinnati, Close to Dayton

Re: quad engines

Post by coachgeo »

XLerate wrote:On either the Kubota or the Briggs/Daihatsu, can't remember which, there was a turbo version & non-turbo version. The turbo had a stonger crank than non-turbos which are well known for crank breakage. Non-turbo is maybe cast, turbo is machined/forged.
Heard that about Diahatsu/Briggs. Later years suposedly the Non Turbo was switched to the turbo crank due to the breakage issue. Least that's the story I heard in reference to the ATV.
XLerate
I luv the smell of Diesel...
Posts: 280
Joined: Tue Sep 20, 2011 8:58 pm
Location: California

Re: quad engines

Post by XLerate »

Sounds right, Coach, 'cause I was real interested in those engines & did a bunch of research, even joined a tractor related website to dig up more info. Apparently the turbo crank was a good fix. I still like that engine, it's a maybe...
Post Reply