Where do I get the part number for my Pistons?
If you have a JE piston—or set of pistons—you need rings for, you can usually provide the part number or job number over the phone to a JE tech expert and they’ll be able to tell you what ring pack part number will get you going again. That’s the easy situation.
How can you tell how many pistons are in a caliper?
Generally, on 1 and 2 piston sliding calipers, you can frequently see “arches” on the face of a caliper. If you count the arches, you can usually tell how many pistons are in the caliper. 4 and 6 piston calipers are a little more tricky but you can still usually see the outline of the 2 or 3 outboard pistons.
How is the TDC of a piston determined?
TDC (Top Dead Center) means the upper most position of piston in the cylinder of an engine. It is the point from which ignition system measurements are made and the firing order is determined. Engineers are using different methods to find out the TDC of an Auxiliary engine. Here you can have a look at some of the methods to find out the TDC. 1.
Why are there no numbers on my JE Pistons?
However, there are many racers, builders, and enthusiasts out there that have some JE pistons that don’t have any laser marked numbers on the bottom of the pin tower. When there is no number present, this means the piston was manufactured before laser marking was implemented in 2005.
If you have a JE piston—or set of pistons—you need rings for, you can usually provide the part number or job number over the phone to a JE tech expert and they’ll be able to tell you what ring pack part number will get you going again. That’s the easy situation.
However, there are many racers, builders, and enthusiasts out there that have some JE pistons that don’t have any laser marked numbers on the bottom of the pin tower. When there is no number present, this means the piston was manufactured before laser marking was implemented in 2005.
Generally, on 1 and 2 piston sliding calipers, you can frequently see “arches” on the face of a caliper. If you count the arches, you can usually tell how many pistons are in the caliper. 4 and 6 piston calipers are a little more tricky but you can still usually see the outline of the 2 or 3 outboard pistons.
What can a piston examination tell us about an engine?
1 | Page Piston Diagnosis. The process of examining used pistons can tell us a lot of helpful information on the condition of an engine. When engine failure does occur the pi examination of it frequently helps us trace the sourc caused the failure.