Just a couple of things Steven. 1. If the sleeves look good or you were'nt going to replace them always check them for egg shaped and also for being bell shaped. Sometimes the sleeve will balloon out because of the ether even if it is'nt worn bad or appear to be ruined. 2. Be sure to check the valves and seats real good. Sometimes the ether will warp the valves and/or crack the valve seats. Since you're already building the engine it would be a good time to have the new type valve guides put in while you work the head. That way you won't have to be putting additives in the fuel for valve lube. I always like to save some money and if there is a Perkins dealer near you the sleeve kits should be about 1/2 price compared to NH or Massey dealers parts. The last Perkins I built no one except Ford had the parts in stock. They wanted $835 for the rebuild kit. I went to Perkins and they ordered the same kit for me. At Perkins it only cost $445. For that much difference I can wait 24 hours on the UPS truck. UPS delivered it to my farm shop so I did'nt have to drive 70 miles to pick it up the next day. P.S- I always have the injector pump and injectors calibrated and new seals put in the pump at the engine rebuild time.
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