Time for new guides?

 
Old 10-29-2018, 11:15 AM
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Default Time for new guides?

Disassembled my head finally and on 2 of the guides, I noticed this little gloppy looking spot. Oil seeping past?
Just some random buildup? It's a very small spot, and only 2 guides.


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Old 10-29-2018, 03:07 PM
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Default Re: Time for new guides?

Or is it normal to see something like this? Intake side, and this is after roughly 3k miles under my current build. The runners and bowls are pret-ty friggin' clean otherwise.
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Old 10-31-2018, 04:50 AM
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Default Re: Time for new guides?

Got the exhaust valves out and damn.. Those are really jacked. It appears the stem seals that I already knew were in need of replacement were evidently the exhaust seals. Lol! I'll get a pic of that up in a while. The bowls look caked up pretty rough with gunk and I cleaned the head pretty well when I put it all together in April. I'm surprised I got the results I did from this build. I CAN say though that I had noticed a difference, performancewise, over the past couple weeks before the piston issue.
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Old 11-02-2018, 03:48 PM
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Default Re: Time for new guides?

Exhaust ports get pretty gross pretty quick. I wouldn't be too concerned by that buildup on the intake side. Unless the valves have excessive play or wear marks and if it's not consuming allot of oil I wouldn't worry about it too much.
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Old 11-02-2018, 03:55 PM
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Default Re: Time for new guides?

Originally Posted by K7-1Ktrevor View Post
Exhaust ports get pretty gross pretty quick. I wouldn't be too concerned by that buildup on the intake side. Unless the valves have excessive play or wear marks and if it's not consuming allot of oil I wouldn't worry about it too much.
There wasn't any real play in the valves, (and these are stock guides also. They were in this engine already, I did not put them in). Barely a noticeable jiggle. I DID notice that when removing the valves, I put my finger over the tip and down on the seal; the intake side had fair suction as I removed the valve and the exhaust side was muuuuch weaker suction. This tells me I was right in having bad seals for sure. The gunky exhaust is not going to be fun cleaning up but, I tackle that task tomorrow.
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