measured valve springs

[TurboDave]

Finally got around to measuring up the valve springs I have that will go into the long block I'm "slowly" assembling.

This is a new unused set of Kirban srpings I"ve have around for several years.

Measurements were taken using an Intercomp model VST20 (Thanks Richard!!!).

And thanks to my Son-In-Law John (GNX405) for taking the actual measurements.

First column is free standing height
Second column is # at 1.727"
Third column is # at 1.340"

2.042----------110----------260

2.048----------106----------258

2.043----------109----------262

2.036----------104----------259

2.031----------105----------258

2.013----------100----------253

2.040----------105----------260

2.045----------109----------265

2.037----------104----------256

2.040----------108----------259

2.031----------105----------258

2.043----------108----------260

 

[turbofabricator]

Just about right for a flat tappet hydraulic. THey will sack about 8-10 lbs in short order, so they will be right at 100 lbs. on the seat after break-in. Good to go.

 

[TurboDave]

Thanks Ken! With those weights though I'll have to do a good cam break-in. I was successful with the engine that's in the car now. Started out with the same springs back then.

 

[SHADOWII]

As an option,...

you could use the old springs for the break in and then swap in the new.

 

[TurboBuRick]

Dave,

I can't understand why you would you even mess with a flat tappet cam. They are so obsolete. I would throw that thing in the garbage. :biggrin:

 

[TurboDave]

Dave,

I can't understand why you would you even mess with a flat tappet cam. They are so obsolete. I would throw that thing in the garbage. :biggrin:

I don't have the timing set yet. But a roller is WAY beyond what I want to spend.

This is the numbers matching block out of my 86 GN. I'll likely never get around to puting it in the car before I get rid of the car(I would just include the long block in the sale). So I'm not looking forward to spending in excess of $800 for a timing set I would likely never use.

 

[SS/GN]

What is the height of the retainer on the valve in the head with no spring.I ususally check with a vernier(special tools available)Then I put the retainer on the spring and put in the spring checker.Finally shim so all are the same,much more precise and not very time consumeing:biggrin:Good luck

Kevin