Spring dimensions

[etiam viviens]

Does someone has the sizes of al the springs in the rapids mk2

Length
Force
Max outer diameter
Min inner diameter

Of the below springs

Hammer springs
Valve springs
Enertis weight spring

Appertly my springs are not stock and

[Squinty]

Does someone has the sizes of al the springs in the rapids mk2

Length
Force
Max outer diameter
Min inner diameter

Of the below springs

Hammer springs
Valve springs
Enertis weight spring

Appertly my springs are not stock and .....

does it matter if it's doing the job?
Limitations are preload and balancing the valve

No idea on spring rates, pretty sure you asked before?

If I  remember correctly a full size hammer spring is
17 coils 72mm long
o/d 12.7mm x 1.42mm wire

[etiam viviens]

Indeed I asked before butt this information is hard to find. And in Holland these springs for the Theoben rapid rifles are difficult to order.

I have 3 theobens and they all need new valve springs and enertia weight springs. Butt what to order in a spring shop.

I was wondering how other people do this?

I assume I'm not the only one in the history of Theoben that needs new springs.
So was hoping that someone has this info

The information that you gave of the hammer spring seems correct butt what is the standard force for FAC rifles or what do people recommend.

[KevG]

I just buy from the place that did them for theoben.i normally order in bulk.hammer springs come in full length and need choping down to different lengths for individual guns.what will give a certain power in one rapid could be miles out in another due to reged or unreged also different calibres ect.
kevG

[Squinty]

Indeed I asked before butt this information is hard to find. And in Holland these springs for the Theoben rapid rifles are difficult to order.

I have 3 theobens and they all need new valve springs and enertia weight springs. Butt what to order in a spring shop.

I was wondering how other people do this?

I assume I'm not the only one in the history of Theoben that needs new springs.
So was hoping that someone has this info

The information that you gave of the hammer spring seems correct butt what is the standard force for FAC rifles or what do people recommend.

I don't believe the exact spec is 'out there', Bucketboy did a bulk buy a few years ago from Vincent Springs (hammer/valve/inertia) , apparently OE spec but I couldn't balance them and bent a couple of stems @32-33fpe.
**exhausts were stiffer than my old ones but lost 8fpe and they lifted under preload, just smashing them to get power over 30fpe**
Went back to my old dual rate AWT hammer spring  and used thumb & fore-finger to select the exhaust from what I had.

 I tried a few stock springs from Lee Spring, Flexo and Springmasters, settled on a 1.35 /1.4mm wire  close to dimensions iirc 1.5nm/mm.
1.83nm was too stiff likewise 1.2nm was very soft.

[KevG]

yes thats were I get mine from.been realy good.
kevG

[angrybear]

If I  remember correctly a full size hammer spring is
17 coils 72mm long
o/d 12.7mm x 1.42mm wire

That's way longer than in any of mine inc my FAC 

[KevG]

yes 72mm is the full length of the uncut springs.normaly a couple of coils need taking of even for some facs.but the .25 fac do need the full spring especially if unreged.
kevG

[angrybear]

yes 72mm is the full length of the uncut springs.normaly a couple of coils need taking of even for some facs.but the .25 fac do need the full spring especially if unreged.
kevG

Ah, just checked my FAC .25 springs are cut at 61mm,
I suppose that that might explain why it tops out around 44fpe, but it already takes a good strong pull to cock the bolt 

[KevG]

yes 72mm is the full length of the uncut springs.normaly a couple of coils need taking of even for some facs.but the .25 fac do need the full spring especially if unreged.
kevG

Ah, just checked my FAC .25 springs are cut at 61mm,
I suppose that that might explain why it tops out around 44fpe, but it already takes a good strong pull to cock the bolt 

if its an old mk1 that power is damn good.a mk2 depending if reged or not should get 50 to 55 ftlbs
kevG

[angrybear]

if its an old mk1 that power is damn good.a mk2 depending if reged or not should get 50 to 55 ftlbs
kevG

It's a mk2, was FF but just changed barrel & fitted a reg now struggling to get 42 ftlb, (reg at 145-bar) but I'll try making a spacer to extend the hammer spring.

[KevG]

how long is barrel and what size porting m8
kevG

[angrybear]

how long is barrel and what size porting m8
kevG

The new barrel is 24" with a 5mm port, reg at 145bar it's making around 860-865fps with 25.4gn
the old FF barrel was 24" with 3.8mm port, I managed 884fps with that.

[angrybear]

Well I tried a longer spring but the valve stuck open after the shot had to open the bolt to get the valve closed again