32V head disassembly /valve stem seal question
06-23-2009, 10:13 PM
#17
Nordschleife Master
Some experiences
I've now disassembled more than a couple of these heads, and I think I am getting a hang of it. The last head took 26 minutes all in, which is nothing to write home about for most of you but a whole lot better than my first head about two months ago.
Here are the tools that I am using:
- Valve spring compressor Schley Products Inc. 91400A (from Ebay)
- Screwdriver (? probably originally from China...)
- Telescope magnet (from Autozone)
- 36" inch long 5/8" OD zinc plated steel rod (from Home Depot)
- Wall Street Journal (from Dow Jones ...err News Corp?)
The long rod allows one to set the bridge flanges only once, without washers. Wall Street Journal is wrapped to a ball and placed in the particular combustion chamber. I personally plant my sizable behind on the steel rod and heads, beats any vice for this purpose. Then, when on compresses the vavle spring, the keepers are pried out with a screwdriver and picked up with the magnet. After this is done for all valves, the head is turned sideways and valves pushed out. Finally, washers, retainers, springs etc. come out in about fifteen seconds per valve with the magnet.
Photo of the tools:
Photo of the valvetrain components. Before anyone jumps and screams of bloody murder for not keeping track of valve seat and valve matches, this head is going to be sacrificed on the altar of science and some of the valves may be cut and used in freshly cut seats of another head (or maybe not if they are in too sad of a condition):
Here are the tools that I am using:
- Valve spring compressor Schley Products Inc. 91400A (from Ebay)
- Screwdriver (? probably originally from China...)
- Telescope magnet (from Autozone)
- 36" inch long 5/8" OD zinc plated steel rod (from Home Depot)
- Wall Street Journal (from Dow Jones ...err News Corp?)
The long rod allows one to set the bridge flanges only once, without washers. Wall Street Journal is wrapped to a ball and placed in the particular combustion chamber. I personally plant my sizable behind on the steel rod and heads, beats any vice for this purpose. Then, when on compresses the vavle spring, the keepers are pried out with a screwdriver and picked up with the magnet. After this is done for all valves, the head is turned sideways and valves pushed out. Finally, washers, retainers, springs etc. come out in about fifteen seconds per valve with the magnet.
Photo of the tools:
Photo of the valvetrain components. Before anyone jumps and screams of bloody murder for not keeping track of valve seat and valve matches, this head is going to be sacrificed on the altar of science and some of the valves may be cut and used in freshly cut seats of another head (or maybe not if they are in too sad of a condition):
06-23-2009, 10:47 PM
#18
Rest in Peace
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Was that head dumped in the Ocean every other day for a few months
Lots of corrosion on the inside of it.
So Greg is going to do some testing on this head?
If you are just trying to strip the heads, you can take a big socket, place it over the retainer and whack it with a hammer, that will usually pop the keepers out real quick.
Lots of corrosion on the inside of it.
So Greg is going to do some testing on this head?
If you are just trying to strip the heads, you can take a big socket, place it over the retainer and whack it with a hammer, that will usually pop the keepers out real quick.
I've now disassembled more than a couple of these heads, and I think I am getting a hang of it. The last head took 26 minutes all in, which is nothing to write home about for most of you but a whole lot better than my first head about two months ago.
Here are the tools that I am using:
- Valve spring compressor Schley Products Inc. 91400A (from Ebay)
- Screwdriver (? probably originally from China...)
- Telescope magnet (from Autozone)
- 36" inch long 5/8" OD zinc plated steel rod (from Home Depot)
- Wall Street Journal (from Dow Jones ...err News Corp?)
The long rod allows one to set the bridge flanges only once, without washers. Wall Street Journal is wrapped to a ball and placed in the particular combustion chamber. I personally plant my sizable behind on the steel rod and heads, beats any vice for this purpose. Then, when on compresses the vavle spring, the keepers are pried out with a screwdriver and picked up with the magnet. After this is done for all valves, the head is turned sideways and valves pushed out. Finally, washers, retainers, springs etc. come out in about fifteen seconds per valve with the magnet.
Photo of the tools:
Attachment 366910
Photo of the valvetrain components. Before anyone jumps and screams of bloody murder for not keeping track of valve seat and valve matches, this head is going to be sacrificed on the altar of science and some of the valves may be cut and used in freshly cut seats of another head (or maybe not if they are in too sad of a condition):
Attachment 366911
Here are the tools that I am using:
- Valve spring compressor Schley Products Inc. 91400A (from Ebay)
- Screwdriver (? probably originally from China...)
- Telescope magnet (from Autozone)
- 36" inch long 5/8" OD zinc plated steel rod (from Home Depot)
- Wall Street Journal (from Dow Jones ...err News Corp?)
The long rod allows one to set the bridge flanges only once, without washers. Wall Street Journal is wrapped to a ball and placed in the particular combustion chamber. I personally plant my sizable behind on the steel rod and heads, beats any vice for this purpose. Then, when on compresses the vavle spring, the keepers are pried out with a screwdriver and picked up with the magnet. After this is done for all valves, the head is turned sideways and valves pushed out. Finally, washers, retainers, springs etc. come out in about fifteen seconds per valve with the magnet.
Photo of the tools:
Attachment 366910
Photo of the valvetrain components. Before anyone jumps and screams of bloody murder for not keeping track of valve seat and valve matches, this head is going to be sacrificed on the altar of science and some of the valves may be cut and used in freshly cut seats of another head (or maybe not if they are in too sad of a condition):
Attachment 366911
06-24-2009, 12:08 AM
#19
Nordschleife Master
No, just Tuomo. ;-) I am planning to saw this into pieces to see where the cooling passages are. Trying to figure out how the coolant flows and how the additional cooling passages in .5R GTS heads help cooling.
The other head from the pair is likely to end up being tortured in a flow bench in some shady garage in MA.
Nice! ;-) I am thinking about maybe using some of the valves etc., so no hammer here. But I'll keep that in mind.
