Should I replace both rotor housings?
05-08-14, 01:56 PM
#26
Oh please, that iron is awesome. Totally useable from what I can see in the picture. I'd use it as it sits. Well, after a basic clean up and a paint job, that is. Whatever you do, don't damage the factory nitrided surface. Leave it alone. The biggest mistake a newbie can make is treat it like a piston engine and "lap" the surface. The surface of your iron is beautiful. Leave it alone.
Step wear, if any, will be right next to the spark plugs. I'm guessing you have way less than spec of .004".
Man, seeing that nice iron makes me want to hurry up and finish my current jobs to get back into engine building. I'm starting to miss it, you know?
Step wear, if any, will be right next to the spark plugs. I'm guessing you have way less than spec of .004".
Man, seeing that nice iron makes me want to hurry up and finish my current jobs to get back into engine building. I'm starting to miss it, you know?
I should be picking up a dial indicator and stand tonight.
Someone else said if I block sanded or lapped the iron he would come to my house. I don't think it would have been a social call.
05-08-14, 02:32 PM
#27
Ray,
Thanks.
The only thing I have not removed so far are the two stationary gears (and seals).
Clean is a relative term in my garage; all depends where in the cleaning stage I'm at on one piece.
As everything was coming apart, all nuts/bolts went into labeled ziplock baggies.
349 photos so far of the removal and disassembly.
I was not sure if I would be reusing the side, apex, corner, and oil seals (not O-rings) from the rotors, but followed suggestions. For storage of each of the corresponding (1-6) rotor pieces I bought Wal-Mart plastic tray dividers @ 3 for $1.50. 4 sets and everyone has a home. I indicated in each tray which direction was to the inside. This would keep the side seals with the same side up if I reuse them. (Not sure that matters.)
Thanks.
The only thing I have not removed so far are the two stationary gears (and seals).
Clean is a relative term in my garage; all depends where in the cleaning stage I'm at on one piece.
As everything was coming apart, all nuts/bolts went into labeled ziplock baggies.
349 photos so far of the removal and disassembly.
I was not sure if I would be reusing the side, apex, corner, and oil seals (not O-rings) from the rotors, but followed suggestions. For storage of each of the corresponding (1-6) rotor pieces I bought Wal-Mart plastic tray dividers @ 3 for $1.50. 4 sets and everyone has a home. I indicated in each tray which direction was to the inside. This would keep the side seals with the same side up if I reuse them. (Not sure that matters.)
05-08-14, 09:39 PM
#28
So I got a better caliper and dial indicator with stand.
On the mid-iron the stepped wear was .002 from the inside water seal area and .0015 from the rotor surface. The most variation I could get across the oil seal areas was .0003. On the other side the stepped wear to the rotor surface area was .002, but the most variation across the oil seal areas was .0003.
I took multiple measurements, the best I could with the caliper, on the rotor widths. I had variation of 2.7415 to 2.7430 for both rotors.
The saga continues.
On the mid-iron the stepped wear was .002 from the inside water seal area and .0015 from the rotor surface. The most variation I could get across the oil seal areas was .0003. On the other side the stepped wear to the rotor surface area was .002, but the most variation across the oil seal areas was .0003.
I took multiple measurements, the best I could with the caliper, on the rotor widths. I had variation of 2.7415 to 2.7430 for both rotors.
The saga continues.
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