Killed my CAM

beater cart · 06-20-2014, 06:40 PM

Have the motor out of the cart to fix the clutch and put the steal shim head gaskets on adjusted the valves spun the motor thru and noticed #2 intake did not move as much as the rest of the valves and it pushes a little air out of the intake manifold. I guess I will pull it down and go for round two.
And yes I used good oil with zinc in it.

1989Marathon · 06-20-2014, 06:43 PM

Check to see if you dropped a valve guide.

beater cart · 06-20-2014, 06:48 PM

It is definitely a wiped lobe.

1989Marathon · 06-20-2014, 06:50 PM

How do you know? And why would it blow air with a flat lobe?

beater cart · 06-20-2014, 07:24 PM

Can I reuse the oil pan gasket ? Or due they normally tear upon disassembly ?Going to tear it down in the am and put the stock cam in it. Want to use the cart Sunday.

1989Marathon · 06-20-2014, 07:28 PM

Is this your vanguard motor?

beater cart · 06-20-2014, 07:40 PM

beater cart · 06-20-2014, 07:43 PM

I noticed in the intake it had signs of reversion going on so when I put the new head gaskets on I took .002 out of the lash to help with that issue but know I believe it was due to the cam.

1989Marathon · 06-20-2014, 07:45 PM

Remove the rocker for that valve and see if it still blows air out the intake when you spin it by hand. A flat lobe will not cause that. A dropped valve guide, or a bent valve will.

beater cart · 06-20-2014, 07:51 PM

It only happened when the valve would open.
Do you think I can save the case gasket?

06-20-2014, 06:40 PM	#1
beater cart Gone Wild Join Date: Nov 2012 Posts: 567	Killed my CAM Have the motor out of the cart to fix the clutch and put the steal shim head gaskets on adjusted the valves spun the motor thru and noticed #2 intake did not move as much as the rest of the valves and it pushes a little air out of the intake manifold. I guess I will pull it down and go for round two. And yes I used good oil with zinc in it.
beater cart Gone Wild Join Date: Nov 2012 Posts: 567

06-20-2014, 06:43 PM	#2
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Killed my CAM Check to see if you dropped a valve guide.
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

06-20-2014, 06:48 PM	#3
beater cart Gone Wild Join Date: Nov 2012 Posts: 567	Re: Killed my CAM It is definitely a wiped lobe.
beater cart Gone Wild Join Date: Nov 2012 Posts: 567

06-20-2014, 06:50 PM	#4
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Killed my CAM How do you know? And why would it blow air with a flat lobe?
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

06-20-2014, 07:24 PM	#5
beater cart Gone Wild Join Date: Nov 2012 Posts: 567	Re: Killed my CAM Can I reuse the oil pan gasket ? Or due they normally tear upon disassembly ?Going to tear it down in the am and put the stock cam in it. Want to use the cart Sunday.
beater cart Gone Wild Join Date: Nov 2012 Posts: 567

Today
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06-20-2014, 07:28 PM	#6
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Killed my CAM Is this your vanguard motor?
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

06-20-2014, 07:40 PM	#7
beater cart Gone Wild Join Date: Nov 2012 Posts: 567	Re: Killed my CAM Yep
beater cart Gone Wild Join Date: Nov 2012 Posts: 567

06-20-2014, 07:43 PM	#8
beater cart Gone Wild Join Date: Nov 2012 Posts: 567	Re: Killed my CAM I noticed in the intake it had signs of reversion going on so when I put the new head gaskets on I took .002 out of the lash to help with that issue but know I believe it was due to the cam.
beater cart Gone Wild Join Date: Nov 2012 Posts: 567

06-20-2014, 07:45 PM	#9
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730	Re: Killed my CAM Remove the rocker for that valve and see if it still blows air out the intake when you spin it by hand. A flat lobe will not cause that. A dropped valve guide, or a bent valve will.
1989Marathon Gone Wild Join Date: Oct 2010 Posts: 6,730

06-20-2014, 07:51 PM	#10
beater cart Gone Wild Join Date: Nov 2012 Posts: 567	Re: Killed my CAM It only happened when the valve would open. Do you think I can save the case gasket?
beater cart Gone Wild Join Date: Nov 2012 Posts: 567

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