Blown out crank seal again and again

itstheburns327 · 01-02-2009, 03:19 PM

i am having the same issue with my 84 ezgo. the fan side crank seal keeps blowing out.

DOOmsman · 01-02-2009, 06:07 PM

Did you maybe put to much dumdum on the case halves and are not getting enough crush on the seals? GOOD LUCK

Goat53 · 01-02-2009, 10:59 PM

Did you check the muffler , I blew a seal on the clutch side last year on my 83 when the muffler stopped up the pressure has to go somewhere when that happens , mine wasn't completely stopped but was about 75/80 % ,, I put the muffler in a campfire and emptyed it out the next morning . hasn't blown another seal YET

itstheburns327 · 01-03-2009, 01:46 PM

the muffler is all clear, i thought the same thing so i put on a spare that is brand new so i know that isnt an issue. tho, i am thinking i may have seated the seal incorrectly. on the fan side of the motor, does the seal go from the inside of the case, behind the bearing, or from the outside, from behind the fan?

Goat53 · 01-03-2009, 08:52 PM

they change from the outside , try cleaning the collar where it fits with alchol to remobe all oil residue but apply a little oil to the rubber inside edge .

itstheburns327 · 01-03-2009, 09:15 PM

Ok, thats how I thought it went. I've been doing that right at least. I will try cleaning it a little better next time. I do know that the seal is tight when i seat it. I just can't understand why this keeps happening ever since i rebuilt it.

travispmize · 05-19-2017, 07:14 PM

the gaps of the rings should be staggered or opposite each other

clr.R4tch3t · 05-19-2017, 08:35 PM

I am sure they figured it out in the 8 years this thread has been dead. Rings are actually about 90° apart from each other and have pin locaters for proper alignment if it is a two stroke.

01-02-2009, 03:19 PM	#11
itstheburns327 Not Yet Wild Join Date: Sep 2008 Location: Moscow, PA, USA Posts: 67	Re: Blown out crank seal again and again i am having the same issue with my 84 ezgo. the fan side crank seal keeps blowing out.

01-02-2009, 06:07 PM	#12
DOOmsman Gone Wild Join Date: Jul 2008 Location: Reddick IL Posts: 11,220	Re: Blown out crank seal again and again Did you maybe put to much dumdum on the case halves and are not getting enough crush on the seals? GOOD LUCK

01-02-2009, 10:59 PM	#13
Goat53 Gone Wild Join Date: Jan 2008 Location: Lowndes County Ga. Posts: 343	Re: Blown out crank seal again and again Did you check the muffler , I blew a seal on the clutch side last year on my 83 when the muffler stopped up the pressure has to go somewhere when that happens , mine wasn't completely stopped but was about 75/80 % ,, I put the muffler in a campfire and emptyed it out the next morning . hasn't blown another seal YET

01-03-2009, 01:46 PM	#14
itstheburns327 Not Yet Wild Join Date: Sep 2008 Location: Moscow, PA, USA Posts: 67	Re: Blown out crank seal again and again the muffler is all clear, i thought the same thing so i put on a spare that is brand new so i know that isnt an issue. tho, i am thinking i may have seated the seal incorrectly. on the fan side of the motor, does the seal go from the inside of the case, behind the bearing, or from the outside, from behind the fan?

01-03-2009, 08:52 PM	#15
Goat53 Gone Wild Join Date: Jan 2008 Location: Lowndes County Ga. Posts: 343	Re: Blown out crank seal again and again they change from the outside , try cleaning the collar where it fits with alchol to remobe all oil residue but apply a little oil to the rubber inside edge .

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01-03-2009, 09:15 PM	#16
itstheburns327 Not Yet Wild Join Date: Sep 2008 Location: Moscow, PA, USA Posts: 67	Re: Blown out crank seal again and again Ok, thats how I thought it went. I've been doing that right at least. I will try cleaning it a little better next time. I do know that the seal is tight when i seat it. I just can't understand why this keeps happening ever since i rebuilt it.

05-19-2017, 07:14 PM	#17
travispmize Not Yet Wild Join Date: May 2017 Posts: 1	Re: Blown out crank seal again and again the gaps of the rings should be staggered or opposite each other
travispmize Not Yet Wild Join Date: May 2017 Posts: 1

05-19-2017, 08:35 PM	#18
clr.R4tch3t Getting Wild Join Date: May 2016 Posts: 122	Re: Blown out crank seal again and again I am sure they figured it out in the 8 years this thread has been dead. Rings are actually about 90° apart from each other and have pin locaters for proper alignment if it is a two stroke.
clr.R4tch3t Getting Wild Join Date: May 2016 Posts: 122

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