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Joined: May 2006
Posts: 37
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: May 2006
Posts: 37 |
Looks like there is no avoiding it. I have to pull the head and unstick those valves. Anybody have a step by step for removing and replacing these valves including tools needed?
Thanks
chevtrkmn
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The valve seats in the head willl need to be "ground"....The exhaust valves should removed and ground also. 50% of Chevrolets could use a valve grind. A auto machine shop can do the job, just don't let them talk you into installing hardened seats.
Gene Schneider
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Joined: Jan 2002
Posts: 1,069 Likes: 9
ChatMaster - 1,000
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ChatMaster - 1,000
Joined: Jan 2002
Posts: 1,069 Likes: 9 |
Also make sure the shop you use. Knows the proper valve guide clearance from the valve stem.
1946 Chevy 3100 1/2 Ton Pickup Purchased 11/18/17 Sold 9/20
1948 Chevy Fleetmaster Coupe, Purchased 6/20/2010
1965 Chevy ll 350 Purchased Feb 2021. 3-speed Saginaw Hurst Floor Shifter 3.08 Rear End
2019 Ford Ranger Lariat Super Crew
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Joined: Feb 2011
Posts: 3,136
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Feb 2011
Posts: 3,136 |
The valve seats in the head willl need to be "ground"....The exhaust valves should removed and ground also. 50% of Chevrolets could use a valve grind. A auto machine shop can do the job, just don't let them talk you into installing hardened seats. Hardened seats...Don't go there...Unless of course they'll throw in a bottle of "snake oil" with it... 
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Joined: Dec 2001
Posts: 11,162
ChatMaster - 10,000
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ChatMaster - 10,000
Joined: Dec 2001
Posts: 11,162 |
The best way is to follow the directions in the Chevrolet shop manual for your model year engine. You will need a valve spring compressor. and a screwdriver and a pair of pliers. first soak up the valve springs and stems in PB Blaster to free the valve springs, valve stems and keepers. compress each valve to take the tension off the split keepers and remove the keepers and release and remove the springs and any spacers. Keep track of where each valve spring and keepers and spacer goes. some times the valves will fall out of the head and othertimes the valves will have to be driven out of the head.
Life's a long winding trail, love Jesus and ride a good horse!
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Joined: Feb 2011
Posts: 3,136
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Feb 2011
Posts: 3,136 |
Once the valve springs are off, you might want to pour a bit acetone around the stems...if the PB Blaster is not loosening them up...It's a good varnish remover...Depending on how bad things look you could always try using valve grinding compound...Depends on your budget...
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Joined: Apr 2008
Posts: 1,194
ChatMaster - 1,000
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ChatMaster - 1,000
Joined: Apr 2008
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I have used spray carb cleaner for varnish on valve stems so I could get them out. It dissolves the varnish good, sometimes it takes a few sprays.
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Joined: Nov 2002
Posts: 7,472 Likes: 26
ChatMaster - 7,000
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ChatMaster - 7,000
Joined: Nov 2002
Posts: 7,472 Likes: 26 |
If the head has been removed oven cleaner works great on varnish and carbon.
Steve D
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