Ezgo 4stroke bad exhaust or carb causing blowby

Barbersham · 08-22-2016, 11:26 AM

Is it possible that the exhaust is blown out and no back pressure is causing large amounts of oil loss through the exhaust? Or that a stuck float or bad carb can flood the cylinder and cause large amounts of oil to blow out the exhaust?

DWC3 · 08-23-2016, 11:43 AM

My guess would be stuck float! Take the carb out and soak it over night and see if that fixes the issue..

Barbersham · 08-24-2016, 11:45 AM

I'm losing a quart of oil every 5-6 hrs. Compression is 152 and 155. Builder has no idea why it's losing oil. Possible for the carb or the exhaust to cause it?

Xtsix · 08-24-2016, 03:47 PM

You could have a bad valve guide, or a stuck pcv valve. Do your plugs look oil fouled? Carburator issues will not cause oil consumption

my1423 · 08-24-2016, 06:27 PM

Did you ever do any of those tests in the other thread?
Still think its from your breather or that you have the incorrect oil level.
1.5 quarts

Barbersham · 08-24-2016, 06:37 PM

Took the crankcase breather off and you can see a mist coming out but it doesn't accumulate on your fingers. Is it supposed to have decent pressure coming out of it? We plugged it and the engine ran the same. We took the fuel line from the block to the fuel pump off and again it seemed like it had decent pressure

Barbersham · 08-24-2016, 06:39 PM

Every time I drive it I am losing an ounce. If I drive it 10 times there will be no oil on dipstick. Should I still drain it and put 1.5 quarts in it?

Barbersham · 08-24-2016, 06:41 PM

Plugs have dark matter on them but they look fine otherwise

Barbersham · 08-24-2016, 06:41 PM

I thought there is no pcv valve on the Ezgo 4 stroke 2000

my1423 · 08-24-2016, 06:47 PM

drain fill with 1.5 quarts. Mark that line on dipstick.

Unhook the breather and place it into a jug.
Drive it. See if you are still loosing oil.
See if it is burning it still or a large collection in the breather can.
Be sure to plug the hole in the air cleaner for test.

post a picture of your current breather. Make sure all the parts are there.

08-22-2016, 11:26 AM	#1
Barbersham Getting Wild Join Date: Aug 2016 Posts: 124	Ezgo 4stroke bad exhaust or carb causing blowby Is it possible that the exhaust is blown out and no back pressure is causing large amounts of oil loss through the exhaust? Or that a stuck float or bad carb can flood the cylinder and cause large amounts of oil to blow out the exhaust?
Barbersham Getting Wild Join Date: Aug 2016 Posts: 124

08-23-2016, 11:43 AM	#2
DWC3 Not Yet Wild Join Date: Jul 2016 Posts: 6	Re: Ezgo 4stroke bad exhaust or carb causing blowby My guess would be stuck float! Take the carb out and soak it over night and see if that fixes the issue..
DWC3 Not Yet Wild Join Date: Jul 2016 Posts: 6

08-24-2016, 11:45 AM	#3
Barbersham Getting Wild Join Date: Aug 2016 Posts: 124	Re: Ezgo 4stroke bad exhaust or carb causing blowby I'm losing a quart of oil every 5-6 hrs. Compression is 152 and 155. Builder has no idea why it's losing oil. Possible for the carb or the exhaust to cause it?
Barbersham Getting Wild Join Date: Aug 2016 Posts: 124

08-24-2016, 03:47 PM	#4
Xtsix Not Yet Wild Join Date: Aug 2014 Posts: 14	Re: Ezgo 4stroke bad exhaust or carb causing blowby You could have a bad valve guide, or a stuck pcv valve. Do your plugs look oil fouled? Carburator issues will not cause oil consumption
Xtsix Not Yet Wild Join Date: Aug 2014 Posts: 14

08-24-2016, 06:27 PM	#5
my1423 Gone Wild Join Date: Apr 2015 Posts: 256	Re: Ezgo 4stroke bad exhaust or carb causing blowby Did you ever do any of those tests in the other thread? Still think its from your breather or that you have the incorrect oil level. 1.5 quarts
my1423 Gone Wild Join Date: Apr 2015 Posts: 256

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08-24-2016, 06:37 PM	#6
Barbersham Getting Wild Join Date: Aug 2016 Posts: 124	Re: Ezgo 4stroke bad exhaust or carb causing blowby Took the crankcase breather off and you can see a mist coming out but it doesn't accumulate on your fingers. Is it supposed to have decent pressure coming out of it? We plugged it and the engine ran the same. We took the fuel line from the block to the fuel pump off and again it seemed like it had decent pressure
Barbersham Getting Wild Join Date: Aug 2016 Posts: 124

08-24-2016, 06:39 PM	#7
Barbersham Getting Wild Join Date: Aug 2016 Posts: 124	Re: Ezgo 4stroke bad exhaust or carb causing blowby Every time I drive it I am losing an ounce. If I drive it 10 times there will be no oil on dipstick. Should I still drain it and put 1.5 quarts in it?
Barbersham Getting Wild Join Date: Aug 2016 Posts: 124

08-24-2016, 06:41 PM	#8
Barbersham Getting Wild Join Date: Aug 2016 Posts: 124	Re: Ezgo 4stroke bad exhaust or carb causing blowby Plugs have dark matter on them but they look fine otherwise
Barbersham Getting Wild Join Date: Aug 2016 Posts: 124

08-24-2016, 06:47 PM	#10
my1423 Gone Wild Join Date: Apr 2015 Posts: 256	Re: Ezgo 4stroke bad exhaust or carb causing blowby drain fill with 1.5 quarts. Mark that line on dipstick. Unhook the breather and place it into a jug. Drive it. See if you are still loosing oil. See if it is burning it still or a large collection in the breather can. Be sure to plug the hole in the air cleaner for test. post a picture of your current breather. Make sure all the parts are there.
my1423 Gone Wild Join Date: Apr 2015 Posts: 256

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