G1 keeps popping clutch side seal

slonomo · 09-10-2013, 05:48 PM

Well it's been a while since I needed engine help for my G1, but this has me stumped. While running, the clutch side seal pops right out when under heavy throttle. If I keep the throttle easy and don't floor it, it stays in there and runs like always. Has anyone ever heard of this?

The seals are 2 years old, haven't had any issues since. It's been running great. It does have an Enticer 250 top end on it, but I wouldn't think the compression is too high, it's still only like 7:1, fairly low compression like the G1 top end.

I'm guessing I'll have to replace the seals?

yamarancher · 09-10-2013, 06:07 PM

You still running an oil pump?

Marathon Man · 09-10-2013, 06:44 PM

When I did the seals on the 82 g1 I had I used red loctite on them before I installed them something I use to do in the marine industry on prop shaft seals. Never had an issue I had to replace them because the clutch side was popped out and the fan side was shredded.

slonomo · 09-10-2013, 06:45 PM

No oil pump, removed it. Running premix at 85:1.

slonomo · 09-10-2013, 06:46 PM

Quote:

Originally Posted by Marathon Man

When I did the seals on the 82 g1 I had I used red loctite on them before I installed them something I use to do in the marine industry on prop shaft seals. Never had an issue I had to replace them because the clutch side was popped out and the fan side was shredded.

That's a good idea. Never though of that. It works on rubber? I suppose any adhesive is better than none, right? Now that the seal has popped out the case is coated in oil, so it just pops back in there, and then it pops right back out.

1989Marathon · 09-10-2013, 07:03 PM

Crank seals are a one-time-use item. If they ever come out, replace them. Use a little loctite on the OD of the seal. Also, make sure you oil the rubber before installing it.

Field6565 · 09-10-2013, 09:37 PM

Did you remove your oil pump cover when you deleted the oil pump? If I can remember correctly..after the seal is installed the inner oil pump cover is bolted back on the casing holding the seal in place so it can't come out. Just a thought....

slonomo · 09-11-2013, 06:35 AM

Quote:

Originally Posted by Field6565

Did you remove your oil pump cover when you deleted the oil pump? If I can remember correctly..after the seal is installed the inner oil pump cover is bolted back on the casing holding the seal in place so it can't come out. Just a thought....

Man I hadn't though of that....I definitely didn't put any pump parts back on. Hasn't been a prob until now though.

slonomo · 09-11-2013, 06:36 AM

Quote:

Originally Posted by 1989Marathon

Crank seals are a one-time-use item. If they ever come out, replace them. Use a little loctite on the OD of the seal. Also, make sure you oil the rubber before installing it.

Thanks, use red also?

09-10-2013, 05:48 PM	#1
slonomo Searching for The Way Join Date: Oct 2009 Location: Medina, Ohio (NEOHIO) Posts: 11,432	G1 keeps popping clutch side seal Well it's been a while since I needed engine help for my G1, but this has me stumped. While running, the clutch side seal pops right out when under heavy throttle. If I keep the throttle easy and don't floor it, it stays in there and runs like always. Has anyone ever heard of this? The seals are 2 years old, haven't had any issues since. It's been running great. It does have an Enticer 250 top end on it, but I wouldn't think the compression is too high, it's still only like 7:1, fairly low compression like the G1 top end. I'm guessing I'll have to replace the seals?

09-10-2013, 06:07 PM	#2
yamarancher Gone Wild Join Date: Nov 2011 Posts: 232	Re: G1 keeps popping clutch side seal You still running an oil pump?
yamarancher Gone Wild Join Date: Nov 2011 Posts: 232

09-10-2013, 06:45 PM	#4
slonomo Searching for The Way Join Date: Oct 2009 Location: Medina, Ohio (NEOHIO) Posts: 11,432	Re: G1 keeps popping clutch side seal No oil pump, removed it. Running premix at 85:1.

09-10-2013, 07:03 PM	#6
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: G1 keeps popping clutch side seal Crank seals are a one-time-use item. If they ever come out, replace them. Use a little loctite on the OD of the seal. Also, make sure you oil the rubber before installing it.
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

09-10-2013, 09:37 PM	#7
Field6565 Gone Wild Join Date: Oct 2010 Location: Pittsburgh Pa Posts: 1,551	Re: G1 keeps popping clutch side seal Did you remove your oil pump cover when you deleted the oil pump? If I can remember correctly..after the seal is installed the inner oil pump cover is bolted back on the casing holding the seal in place so it can't come out. Just a thought....

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09-10-2013, 06:44 PM	#3
Marathon Man Gone Wild Join Date: Aug 2010 Location: brooksville fl Posts: 412	When I did the seals on the 82 g1 I had I used red loctite on them before I installed them something I use to do in the marine industry on prop shaft seals. Never had an issue I had to replace them because the clutch side was popped out and the fan side was shredded.

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