Titan spring not fitting BSA Standard

[45flint]

Any thoughts I bought a Titan spring #1 for a replacement for a broken spring in my 1914 BSA Standard. Was told it would fit. It is just slightly too big around to fit into the piston. It’s very close. Thinking I could grind a little flat around the coil but would be time consuming. Anyone know of a spring that would fit easily? Below the half spring that was not broken.

[trajectory]

For a one piece replacement I think a standard replacement Airsporters spring could do the job but it might be a little long so it may need a few coils cut off. Then it will of course need the cut surfaces grinding & polishing. Some have said a Meteor spring can work too, not tried that but a cut down Airsporter spring fitted a BSA Improved mod. D, after a few coils were cut off.

[maximus]

I think if you grind the outside of the spring you'll knacker it! Find one that fits and sell the other on here.

[draitzer]

As noted above, do not try to grind down the spring OD - that would be an invitation to breakage.
Springs in a couple of my old full-size BSA's were about .785" OD, so something that size or a tad less should be good. You might try to confirm dimensions with your supplier before taking the plunge.

Don R.

[Snodgrass]

Hi Steve,

What is the free length of the half spring you have which is not broken?I have looked through my old BSA spares and find I have a few half springs with 17 turns, one measuring

4 1/2" long and one at 4 1/4" long in nice straight condition.

I can send one of both to you if you think you can use them.Outside diameter is 0.815"

Regards,

Chris

[45flint]

Hi Steve,

What is the free length of the half spring you have which is not broken?I have looked through my old BSA spares and find I have a few half springs with 17 turns, one measuring

4 1/2" long and one at 4 1/4" long in nice straight condition.

I can send one of both to you if you think you can use them.Outside diameter is 0.815"

Regards,

Chris

Appreciate the offer but my spring is 4 3/4 outside diameter about .75”. I ended up making a short second spring and did what everyone said not to - ground the outside to fit. Someone over here uses HW50 springs for his and I looked at the specs and my spring wire is thicker than the HW. I just shot it for the first time today and got 10 foot pounds which is more than fine with me. I liked the idea of keeping with 2 springs. If I find the spring breaks, these rifles are so easy to work on I will just start again. Given how much I shoot I bet I’ll be fine?

[45flint]

As noted above, do not try to grind down the spring OD - that would be an invitation to breakage.
Springs in a couple of my old full-size BSA's were about .785" OD, so something that size or a tad less should be good. You might try to confirm dimensions with your supplier before taking the plunge.

Don R.

I found a post here on the dimensions of Titan springs in mm. On another forum a knowledgeable BSA fellow told me to get a HW50 spring. That corresponds to a Titan #7 which has a little less OD just about where you say? The length looks right as well so maybe I won’t even have to cut it. I doubt it will be as powerful as the originals but should be fine for what I do. Hope repeating the info below helps another BSA traveler. At least my 2 spring experiment showed me there are no other issues with the rifle.

NO- OD - ID - Wire- Coils- Length

01- 21.0- 14.5- 3.2- 31- 280
02- 22.7- 15.5- 3.6- 30- 291
03- 20.8- 14.7- 3.2- 34- 304
04- 22.6- 15.6- 3.6- 28- 252
05- 19.0- 13.1- 3.0- 32- 290
06- 19.7- 13.3- 2.9- 39- 341
07- 20.0- 13.8- 3.3- 30- 255
08- 20.0- 13.8- 3.3- 34- 295
09- 21.0- 14.7- 3.3- 27- 280
10- 21.0- 14.8- 3.1- 27- 230
11- 18.8- 12.8- 3.0- 31- 230
12- 18.9- 12.6- 2.9- 36- 295
13- 19.4- 13.0- 3.1- 39- 340
14- 22.7- 15.4- 3.6- 37- 358
15- 17.5- 12.1- 2.3- 33- 254

[Maple]

Could you enlighten as to who it was who told you that it would fit ?

[45flint]

Could you enlighten as to who it was who told you that it would fit ?

See KWK in this discussion. He is an old time collector of BSA’s in the US. He also warned me not to grind the spring, must know something? Lol He also told me the Airsporter spring would fit, but I think he says that a double sear is one that he doesn’t have? Maybe I should wait till the #7 fits to thank him? He’s a good fellow.

https://www.gatewaytoairguns.org/GTA...topic=205028.0

[45flint]

[gunshop]

Airgunspares has springs that will fit this, the flat section wire is no longer available so a round section version has been made that is a higher quality and suitable for the gun. Fitting to strong a spring will just damage the gun they weren't designed to shoot at 12ftlb

[45flint]

Airgunspares has springs that will fit this, the flat section wire is no longer available so a round section version has been made that is a higher quality and suitable for the gun. Fitting to strong a spring will just damage the gun they weren't designed to shoot at 12ftlb

It is shooting slightly under 10 Fpe. What would be ideal? I have a spring that should fit correctly coming. I made these double flat springs by grinding the spring that was too wide. Not a great idea but it worked. Testing what a double spring feels like vs the full spring that is coming.

[trajectory]

Testing what a double spring feels like vs the full spring that is coming.

To get the full impression of the two spring set up you might need to consider that one spring was left hand wound while the other was right hand wound.