V

V8-Ninety

Active Member
Currently my v8 rebuild has ground to a halt as a tangi mechanic has told me i should make all the pistons and conrod the same weight as close as possible however i cant find a set of scales for the job... kitchen scales only measure to nearest gram... bought a set of fishing scales which are excellent but have a max of 500g
does anybody know of a decent set of scales that wont brake the bank as im on an apprentice wage and insisting on genuine parts has blown that out of the water
 
Are you using mis matched pistons from a junk heap? Unless you are building a 600hp supercharged 10,000 rpm engine there is no need. Factory does a good job on matching weight on a set of pistons. Plus that is what a harmonic balancer is for.

If you insist on weighing them, a drug dealer should have a good set of scales
 
Don't think any scale will help you get mm precision on a kg measure.
You don't really a scale anyway just a balance bar. Pick a piston and rings that is the lightest then adjust the others to match. If its new parts then mixing and matching rings, pins and pistons can get you pretty close.
Rods can be balance on a knife edge (end to end) trying to get them the balance at the same point . This normaly needs removal of some material.

Better than that you would need dynamic balancing which is a bit beyond home workshop kit.
 
Weighing to the nearest mm! LMFAO!
Yes the best way is to use a balance and match the lightest bit. You might have to make your own balance but it won't be difficult.
 
Thor1950 said:
Are you using mis matched pistons from a junk heap? Unless you are building a 600hp supercharged 10,000 rpm engine there is no need. Factory does a good job on matching weight on a set of pistons. Plus that is what a harmonic balancer is for.

If you insist on weighing them, a drug dealer should have a good set of scales
Click to expand...

Wont do any harm setting them up as best as possible anyway... said fishing scales were bought from the local petshop along with 40 cigarettes for 3 quid a pack.... drug dealers are useless haha
 
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