hello,
I have a 2001 RR with 101k miles. I had the typical coolant leak from the rear coolant channel in the heads, so I have removed the heads to replace new head gaskets. I called a machine shop about having the heads and intakes cleaned and they recommended that I have the heads "decked" and said that I may not get a proper fit until this procedure was performed. I understand that this simply means shaving off a few thousands of an inch to get a completely flat surface again. Is this something I shoudl do? Are there pros and cons associated with this type of procedure?
I understand that I will have to go further and completely break down the heads to do the cleaning and the decking or else the "gunk will just build up inside the head on the valves". Is cleaning the heads at this mileage a good idea?
Also, I was considering using a dremmel tool to polish off the rough areas inside the air flow channels inside the manifolds and head ports. Will this give a significant performance enhancement? Are there pros and cons to doing this type of polishing? Could this negatively affect performance in any way? Is this a dangerous thing to do?
Lastly, are there any other procedures that I should consider since I have the engine opened up to this level and with this mileage? timing chain? etc.?
Any comments are greatly appreciated!
Jason
I have a 2001 RR with 101k miles. I had the typical coolant leak from the rear coolant channel in the heads, so I have removed the heads to replace new head gaskets. I called a machine shop about having the heads and intakes cleaned and they recommended that I have the heads "decked" and said that I may not get a proper fit until this procedure was performed. I understand that this simply means shaving off a few thousands of an inch to get a completely flat surface again. Is this something I shoudl do? Are there pros and cons associated with this type of procedure?
I understand that I will have to go further and completely break down the heads to do the cleaning and the decking or else the "gunk will just build up inside the head on the valves". Is cleaning the heads at this mileage a good idea?
Also, I was considering using a dremmel tool to polish off the rough areas inside the air flow channels inside the manifolds and head ports. Will this give a significant performance enhancement? Are there pros and cons to doing this type of polishing? Could this negatively affect performance in any way? Is this a dangerous thing to do?
Lastly, are there any other procedures that I should consider since I have the engine opened up to this level and with this mileage? timing chain? etc.?
Any comments are greatly appreciated!
Jason