Porsche 911 Air-Cooled Cam Box. Inspect And Restore
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- Опубліковано 15 жов 2024
- Porsche 911 and 930 Air-Cooled Cam box inspection, measurement, and splash tube removal. Watch as we restore a cam box. We did cheat a bit cause our hardware had already been re-plated, but enjoy this lesson on early air-cooled Porsche.
The cam box is one of those parts that can often be neglected in the repair process. The oil spray tube tends to be the catch-all for any debris that makes its way into the lubrication system. The housing is also the bearing surface for the camshafts. So, this makes it an important piece in the scheme of engine rebuilding.
For entertainment purposes only, thanks for watching.
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My engine is being rebuilt and my mechanic sends me your videos to keep me informed. Very useful. Thank you.
Glad to help
Kurt
Great job Kurt!
Thanks!
Kurt
I love your explanations and attention to detail ......
Glad you like them!
Outstanding. Thanks for taking the time
Glad you enjoyed it!
I have enjoyed a bunch of your videos! I'm running through my cam boxes and was curious how you cleaned your cam boxes on this video? They look awesome! Vapor, chemical or media blasting? thank you Mark
Mark,
We use a multiple step process. I start of with scraping off as much of the dirt and debris as possible. Then they go into our smart washer to remove as much of the grease and grime as I can. Next it is into the vapor blast machine and lastly its into our media tumbler for about 30-40 minutes. After all that they get a final rinse in clean water and they are ready for inspection.
Kurt
Great video!!! Thanks Kurt.
Glad you liked it!
Dear Gentleman I found yesterday your MEGA channel and great videos specially these about porsche 911 engine rebuild. I partially restored my 2,2 T year 1969 engine, still running quite good apart from oil leaks growing and noisy valve train… sooner or later I will go for a complete rebuild by myself and for sure your videos will guide with handbook and workshop manuals. Innterms of valvetrain noise and cam housing I fear that mine has pretty wear due to side play of rocker arms with tolerances next to limit… probably I have to go for new cam housing but as far as I know is not available as new spares and to search for a used unit could lead me to expensive buy of used units with my same wear and noise problems. What is your suggestion? Thank you in advance and thanks thanks for this mega channel with incredible videos and tasks that help us in operations on 911 engines!!
Finding used parts can be hard. We have worked with our dismantlers for a while and if we get a part that is out of spec, they usually replace it for us. Buying from an owner would be a bad idea, unless you can get them to measure the bearing sizes first. Thanks for watching and good luck with your builds. Sarah
Great videos.
2 questions.
The plugs that you drilled out to get the inner oil squirter tube thing out, where did you get the replacement plugs from?
And what is the OD of the brass rod you used to push the tube out with?
Thanks in advance.
We usually make the plugs in house, but you can purchase them from Porsche. Off the top of my head I cant remember the O/D of the brass used to push out the tube, I just use from our materials stock on hand at the time. I believe it is going to be around 8 mm though.
Thanks
Kurt
Great video! What process did you use to clean the housing?
I have a cleaning process, that starts with degreasing, followed by vapor blasting, and finally running the part in a ceramic polisher using an industrial soap and water solution.
@@klassikats Thank you! I was concerned that vapor blasting could negatively affect the cam bearing surfaces.
@@scottcarson9287 One of the advantages of vapor blasting is that the surface condition is usually pretty good, to begin with. We also use a fine glass bead media that does not dig into the surface as an aluminum oxide media would. It takes longer to clean but does cause the surface to become rough. Lastly, I will generally stay away from the cam bearing surfaces while blasting.
Thank you sir
Your Welcome
Slightly over wear on a 4 bearing cover, anyway to address it or replace?
If the cam box is worn then the only option is to replace it.
Kurt