244 cc bottom end

cowboy wayne · 03-08-2011, 09:57 PM

How hard is it to get the case back together after putting new bearings in ? I was wondering if it is hard to pull together ? And if it is if anybody tryed freezing the crank so it would shrink up and slide together easyer ?

madoc1 · 03-09-2011, 08:36 AM

there seems to be more than one way. i seated the bearings in the case halves then inserted the crank and tapped around the outer edges of the cases where the bearings are with a brass hammer til the bolts grabbed. then using a criss-cross pattern tightened them up. woked for me. i do think the freezing idea is good tho.

cowboy wayne · 03-09-2011, 07:25 PM

It worked really well slid right together .

madoc1 · 03-09-2011, 08:31 PM

way to go. those little engines are fun to play with.

cowboy wayne · 03-09-2011, 09:19 PM

Yes they are . Have you ever done any high perforance mods on yours? Such as shaving the head or the jug or anything ?

madoc1 · 03-10-2011, 08:51 AM

nothing modified, but with 22s and the engine not really broken in it ran 20. that's with a diamond plate body annd dump bed.

Dave Box · 03-10-2011, 09:35 AM

I have to agree with Jim, With a freshly rebuild motor, 22' tires and a short belt I get 20+mph on the level which is plenty fast enough especially for a cart with two small brake drums. I am not sure as to the return on investment with regards to extra power and I wonder is anyone has ever skimmed the head, overbored the cylinder, fitted a larger carburetor and modified the exhaust. I certainly would be interested to hear what the costs were and what the extra performance was.
Just another $0.02
Dave

cowboy wayne · 03-10-2011, 10:35 AM

Yes Dave that would be interesting to see how much more power you could get . As far as carb i wouldnt know where to get one . I dont think the machine work would cost that much .

Dave Box · 03-10-2011, 05:24 PM

You're right the machine work should not be too expensive and if you have to rebore the cylinder anyway then why not go 25 or 50 oversize. EZGO used the larger BV24 carburetor on the 3PG engine as well as a modified exhaust. This gave an extra 20% increase in power (9 - 11 hp). However they also changed the design of the differential to a more efficient device so that will also have increased output. I think it would be an interesting project but as I said earlier maybe not such a good return on your investment. I guess this is why guys just drop in a big block. Hopefully someone who has race tuned the 2PG will come along and prove me wrong.
Dave

cowboy wayne · 03-10-2011, 05:37 PM

Hopefully it will be awhile but i might do it he next time . As you no from our earlier post just rebiult mine back stock . I would say that if a guy done all that and raised the compression he might have to run race fuel . That is another exspence and it might not run good at lower rpms .

03-08-2011, 09:57 PM	#1
cowboy wayne Not Yet Wild Join Date: Feb 2011 Location: Farmington MO Posts: 34	244 cc bottom end How hard is it to get the case back together after putting new bearings in ? I was wondering if it is hard to pull together ? And if it is if anybody tryed freezing the crank so it would shrink up and slide together easyer ?

03-09-2011, 08:36 AM	#2
madoc1 no clue Join Date: Sep 2009 Location: spicewood, texas Posts: 3,308	Re: 244 cc bottom end there seems to be more than one way. i seated the bearings in the case halves then inserted the crank and tapped around the outer edges of the cases where the bearings are with a brass hammer til the bolts grabbed. then using a criss-cross pattern tightened them up. woked for me. i do think the freezing idea is good tho.

03-09-2011, 07:25 PM	#3
cowboy wayne Not Yet Wild Join Date: Feb 2011 Location: Farmington MO Posts: 34	Re: 244 cc bottom end It worked really well slid right together .

03-09-2011, 08:31 PM	#4
madoc1 no clue Join Date: Sep 2009 Location: spicewood, texas Posts: 3,308	Re: 244 cc bottom end way to go. those little engines are fun to play with.

03-09-2011, 09:19 PM	#5
cowboy wayne Not Yet Wild Join Date: Feb 2011 Location: Farmington MO Posts: 34	Re: 244 cc bottom end Yes they are . Have you ever done any high perforance mods on yours? Such as shaving the head or the jug or anything ?

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03-10-2011, 08:51 AM	#6
madoc1 no clue Join Date: Sep 2009 Location: spicewood, texas Posts: 3,308	Re: 244 cc bottom end nothing modified, but with 22s and the engine not really broken in it ran 20. that's with a diamond plate body annd dump bed.

03-10-2011, 09:35 AM	#7
Dave Box Respect the Cart Join Date: May 2010 Location: Rocky Mount, Virginia Posts: 2,190	Re: 244 cc bottom end I have to agree with Jim, With a freshly rebuild motor, 22' tires and a short belt I get 20+mph on the level which is plenty fast enough especially for a cart with two small brake drums. I am not sure as to the return on investment with regards to extra power and I wonder is anyone has ever skimmed the head, overbored the cylinder, fitted a larger carburetor and modified the exhaust. I certainly would be interested to hear what the costs were and what the extra performance was. Just another $0.02 Dave

03-10-2011, 10:35 AM	#8
cowboy wayne Not Yet Wild Join Date: Feb 2011 Location: Farmington MO Posts: 34	Re: 244 cc bottom end Yes Dave that would be interesting to see how much more power you could get . As far as carb i wouldnt know where to get one . I dont think the machine work would cost that much .

03-10-2011, 05:24 PM	#9
Dave Box Respect the Cart Join Date: May 2010 Location: Rocky Mount, Virginia Posts: 2,190	Re: 244 cc bottom end You're right the machine work should not be too expensive and if you have to rebore the cylinder anyway then why not go 25 or 50 oversize. EZGO used the larger BV24 carburetor on the 3PG engine as well as a modified exhaust. This gave an extra 20% increase in power (9 - 11 hp). However they also changed the design of the differential to a more efficient device so that will also have increased output. I think it would be an interesting project but as I said earlier maybe not such a good return on your investment. I guess this is why guys just drop in a big block. Hopefully someone who has race tuned the 2PG will come along and prove me wrong. Dave

03-10-2011, 05:37 PM	#10
cowboy wayne Not Yet Wild Join Date: Feb 2011 Location: Farmington MO Posts: 34	Re: 244 cc bottom end Hopefully it will be awhile but i might do it he next time . As you no from our earlier post just rebiult mine back stock . I would say that if a guy done all that and raised the compression he might have to run race fuel . That is another exspence and it might not run good at lower rpms .

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