What sizes did you have to use to rebuild your motors? For example, micrometers come in 1 inch increments (0" - 1", 1" - 2", etc.). Which ones do I need? I don't want to buy a set of 6 (0" - 6") micrometers and end up only using 2 or 3 of them. I have the same question regarding telescoping gauges. What sizes did you guys use?

I used an old 0-4" mic and inexpensive set of telescoping gages from Ebay. I probably spent $30 for both. I think if you want to get individual ones, the main bearings need 1-2" and rotor bearings need 3-4". You will need 3-4" to test the housings and rotor widths.



I didn't want to mess with getting a couple of mics so I just got a 4" one which had extension shafts for measuring smaller widths . . . so it covers all widths from 0-4".

just make sure they have sufficient precision (.001" or better)

Agreed, but I think you need sufficient size before you need sufficient precision. 88IntegraLS, did you use all the telescoping gauge sizes?

I think there were only two that I actually needed to use for the stationary gear and rotary bearing sleeves. If you look in your manual for the acceptable bearing sizes, you will find which telescoping gage you need. I bought a complete set of a obout six gages for fifteen bucks or some very affordable price. They measured the same distances consistently, so they were not "cheap".



And yes, get a micrometer which measures thousandths of an inch. Any less precision is useless for taking meaningful measurements.

Bruce Turrentine suggests the following:



Micrometers - 0 - 4"

Telescopic Gauges - 1.5 - 2 and 2.5 to 3"

Feeler Gauge

Dial Indicator and Magnetic Base

Flat Metal Ruler

Digital Verniers



You will also need a Tap & Die Set to run out the threads as follows:



6x1 for the oil pump

8x1.25 for the front cover, stationery gears and intake bolt holes

10x1 for all tension bolts

10x1.25 for the bellhousing bolt holes



Generl Tools:



19, 17, 14, 12, 10mm wrench set

10, 12, 14, 17mm shallow socket 3/8 drive (min)

10, 12, 14mm deep socket 3/8 drive

17, 19mm deep socket 1/2 drive

3/8 ratchet

short and long extension bars for 3/8 drive

54mm socket, 3ft breaker bar

Rubber mallett, needle nose pliers, side cutters, putty knife, electrician's tape



Air Tools (optional)



Cheers https://www.nopistons.com/forums/pub...DIR#>/cool.png

Sweet azz. That's exactly what I was looking for. Good onya!