Cam adjuster lockplate repair prototypes done.
03-22-2021, 01:18 AM
#51
Senior Member
Thread Starter
Ok, not sure where to start, but I’ll stick with what’s in my wheelhouse here.
The adjuster lock plates in the pictures that I repaired are dimensionally finished. They would perform flawlessly as pictured if installed.
The depth of the lock bore is exactly the same as the OE part because I use the OE floor of the bore (within a few thou), and the inside diameter of the repaired lock bore is also exactly the same as the OE part, with the exception that it is ~62Rc (exactly the same material as the pin) instead of maybe ~30Rc.
The part that is not finished with them is that they do not have the final surface finish, as I will be using a rotary surface grinder as opposed to a reciprocating surface grinder to do that.
With the rotary grinder, I will have a finish that looks like that of a very fine, almost mirror finished (quality, not #of teeth) saw blade. That’ll be better demonstrated with the before and after pictures.
As far as reassembly goes, if you choose to go the repair route when I am up and running(a decision that I would be thrilled with) I highly recommend using the Camshaft and adjuster bolts available from 63motorsports, as well as the new MB diamond friction washers, also available from the same.
63motorsports and I have collaborated on this issue to great extent, and between the two of us we’ve got the top end of these things mapped out quite well.
If I have left questions unanswered, or worse created more, please ask away. I want everyone to have what they need to make an informed decision with their engine.
The adjuster lock plates in the pictures that I repaired are dimensionally finished. They would perform flawlessly as pictured if installed.
The depth of the lock bore is exactly the same as the OE part because I use the OE floor of the bore (within a few thou), and the inside diameter of the repaired lock bore is also exactly the same as the OE part, with the exception that it is ~62Rc (exactly the same material as the pin) instead of maybe ~30Rc.
The part that is not finished with them is that they do not have the final surface finish, as I will be using a rotary surface grinder as opposed to a reciprocating surface grinder to do that.
With the rotary grinder, I will have a finish that looks like that of a very fine, almost mirror finished (quality, not #of teeth) saw blade. That’ll be better demonstrated with the before and after pictures.
As far as reassembly goes, if you choose to go the repair route when I am up and running(a decision that I would be thrilled with) I highly recommend using the Camshaft and adjuster bolts available from 63motorsports, as well as the new MB diamond friction washers, also available from the same.
63motorsports and I have collaborated on this issue to great extent, and between the two of us we’ve got the top end of these things mapped out quite well.
If I have left questions unanswered, or worse created more, please ask away. I want everyone to have what they need to make an informed decision with their engine.
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mech81 (05-01-2021)
06-18-2023, 03:26 PM
#52
Senior Member
I know im so e years behind on this thread
Can you or someone tell me the size of the bushing.. ID, OD, and Height/thickness
I have enough tools and i have this problem now..
Can you or someone tell me the size of the bushing.. ID, OD, and Height/thickness
I have enough tools and i have this problem now..
The following users liked this post:
Fernando2007 (06-19-2023)
06-04-2024, 09:27 AM
#53
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Join Date: Oct 2019
Location: Durban..south africa
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W204 c63
Sudesh
Hi..i am from South Africa..justvreading your tgread..sounds really interesting...where can i purchase these bushings from..u can email me on ...sudesh6512@gmail.com..thank u..looking firward to hearing from you[.
Welding works too, but the plates should still be surface ground afterwards. The heat from the weld will warp the plate slightly.I like this option because the bushings are cheap and readily available. They are also the same hardness of the locking pin, which means that they will last a very long time.[/QUOTE]
