Re: Varnish seize?

**RknRusty** Tue Sep 25, 2012 11:12 pm

fit90 wrote:
gcb wrote:
JPvelo wrote:I have the same problem rusty. Lite taps to nothing but a good enough wallop to reset the socket deforms the piston. Anyone who has used a reset tool successfully feel free to chime in.

This can happen if your anvil is not sitting on a SOLID surface. The surface should be hard and substantial like a large vise or patio block...wood is not good enough. The problem stems from the hammer force being transmitted through the piston and absorbed by a softer surface. A hard surface will make the force stay at the socket.

Not saying that this is your problem, but it MIGHT be your problem.

George

Ditto to what George said. I was suffering about a 20% failure rate doing this on my tool box or small vise. When I moved it to a larger, more solid and stable surface I have been enjoying a 100% success rate. I am certain luck has something to do with it but the numbers did get better.

Good luck,

Bob

Originally I was using my large vice bolted to my wooden table. Now my anvil is a Pontiac front brake rotor, a heavy solid hunk of iron on a concrete floor. I'm going to practice with a larger hammer on a couple of old loose Bee pistons and see how it does. Bob, every piston I've gotten from you has zero play and perfect fit, so I know it can be done.

**Cribbs74** Wed Sep 26, 2012 12:16 am

Totally not trying to toot my horn here, I have done .010 thru .09 piston resets without issue. I have always done my resets on a concrete floor. Judging by what you guys are saying the hard surface must play a big role in a successful reset.

SuperDave Wed Sep 26, 2012 9:11 am

This thread has drifted from the original subject of "varnish seizure" so I'm outa here.

Ta! Ta!

**RknRusty** Wed Sep 26, 2012 11:23 am

SuperDave wrote:This thread has drifted from the original subject of "varnish seizure" so I'm outa here.

Ta! Ta!

The OP guided the discussion so it was not a hijack. Ta Ta.

PV Pilot Wed Sep 26, 2012 11:47 am

I use a old heavy blacksmith anvil for my reset tool backstop.

Had a crazy idea of getting a rack and pinion arbor bench press for other items besides a stable, no movement way of pressing straight down on a reset tool. I see the problems with the reset tools as movement in the pin tool piece as you swing the hammer or grip the tool piece tighter right before hammer impact. You move it slightly out of the needed straight down angle right before hammer impact, which in turn lays the piston socket material against the rod ball tighter in one spot. So you keep whacking away until the piston dimples or it is ruined.

gcb Wed Sep 26, 2012 12:30 pm

PV Pilot wrote:I use a old heavy blacksmith anvil for my reset tool backstop. ...I see the problems with the reset tools as movement in the pin tool piece as you swing the hammer or grip the tool piece tighter right before hammer impact. You move it slightly out of the needed straight down angle right before hammer impact, which in turn lays the piston socket material against the rod ball tighter in one spot. So you keep whacking away until the piston dimples or it is ruined.

I would suggest you tap the tool lightly with the hammer and rotate the tool each time you tap so you get even coverage of the whole socket. I don't actually grip the tool tightly, I just hold it in place sorta like starting a nail in a piece of wood. Look at the thickness of the steel socket...you don't need much.

George

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