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Hard starting. Crank seal leak

Posted: Fri Oct 11, 2019 6:49 pm
by thistleb
Thanks in advance for the help. 86 spree. 90 psi compression. Hard to start but when it does it will run fine for a minute or so. The starts to rev and stalls. Cleaned carb thoroughly. Air box in place. Have noticed an oily leak on the left case. Looks like crank seal. Would that cause the issues?

Re: Hard starting. Crank seal leak

Posted: Fri Oct 11, 2019 7:54 pm
by bonesv
thistleb wrote: Fri Oct 11, 2019 6:49 pm Thanks in advance for the help. 86 spree. 90 psi compression. Hard to start but when it does it will run fine for a minute or so. The starts to rev and stalls. Cleaned carb thoroughly. Air box in place. Have noticed an oily leak on the left case. Looks like crank seal. Would that cause the issues?
It could but I would thoroughly clean the area around the front of belt pulley/crank seal and run a few times to confirm it is a seal that's leaking. It's an easy fix if it is :thumbwink:

Re: Hard starting. Crank seal leak

Posted: Sat Oct 12, 2019 10:18 am
by thistleb
Definitely leaking. My son noticed air escaping from the left side cover when cranking. Pulled cover and confirmed leaking from the seal. Will you replace that now.

Re: Hard starting. Crank seal leak

Posted: Fri Jan 03, 2020 2:51 pm
by jranilovich
thistleb wrote: Sat Oct 12, 2019 10:18 am Definitely leaking. My son noticed air escaping from the left side cover when cranking. Pulled cover and confirmed leaking from the seal. Will you replace that now.
What is the Easiest way to tell if the seal is leaking soapy water and trying to start it?

Re: Hard starting. Crank seal leak

Posted: Fri Jan 03, 2020 4:17 pm
by nateberrier
jranilovich wrote: Fri Jan 03, 2020 2:51 pm
thistleb wrote: Sat Oct 12, 2019 10:18 am Definitely leaking. My son noticed air escaping from the left side cover when cranking. Pulled cover and confirmed leaking from the seal. Will you replace that now.
What is the Easiest way to tell if the seal is leaking soapy water and trying to start it?
If its leaking there will be oil coming from the seal on either side of the crank.