Picked up a little garage sale fun...

I would have bought it too. The airgun gods will reward you for bringing that back to life.

Before you spend that $50 for the kit, research Youtube (very good two part video) and anotherairgunblog for a very good series on the gun. The only o-ring I had trouble finding was the square section quad seal. If I can find where I ordered it, I'll post the web site. 

Nice find.
I used the rebuild kit from Mac1
http://www.mac1airgunshop.com/product-p/cr1400rk.htm

Results were
10 pumps with 11.9gr RWS Hobby---------------------------------710fps 13.3fpe
10 pumps with 12.50gr Beeman Silver Bear---------------------700 fps 13.6fpe
10 pumps with 13.43gr JSB Exact Jumbo RS--------------------690 fps 14.2fpe

This is a nice addition if you want to install a scope or red dot sight. It tightens down snug around the barrel.
http://www.pyramydair.com/s/a/Air_Venturi_Intermount_Fits_Benjamin_Sheridan_Multi_Pump_Rifles/2015

I usually use Mac1 for rebuilds. If he doesn't have what you need, check Baker Airguns.

"Wadcutter"Nice find.
I used the rebuild kit from Mac1
http://www.mac1airgunshop.com/product-p/cr1400rk.htm

Results were
10 pumps with 11.9gr RWS Hobby---------------------------------710fps 13.3fpe
10 pumps with 12.50gr Beeman Silver Bear---------------------700 fps 13.6fpe
10 pumps with 13.43gr JSB Exact Jumbo RS--------------------690 fps 14.2fpe

Click to expand...

That's pretty hard-shooting for a pumper! 

"Smaug"

"Wadcutter"Nice find.
I used the rebuild kit from Mac1
http://www.mac1airgunshop.com/product-p/cr1400rk.htm

Results were
10 pumps with 11.9gr RWS Hobby---------------------------------710fps 13.3fpe
10 pumps with 12.50gr Beeman Silver Bear---------------------700 fps 13.6fpe
10 pumps with 13.43gr JSB Exact Jumbo RS--------------------690 fps 14.2fpe

Click to expand...

That's pretty hard-shooting for a pumper!

Click to expand...

I have an old .pdf manual of the 1400 and its rated at 610fps with 10 pumps. The manual does not mention what pellet was used. I was pleasantly surprised to see the results. The rifles manufacture date was 1972.
I rebuilt a similar Crosman model 140 (1965) and the velocity at 10 pumps using 11.9gr RWS Hobby averaged 650fps 11.2fpe

Great find

Looks to be in pretty good shape! And wadcutter, those adaptor mounts look like they'll fit my Model 160 receiver. Been looking high & low for some kind of adaptor to fit the 3-9x32 off the Winchester onto the 160.

"Tominco"I am getting ready to order the rebuild kit since winter is setting in already. I'm wondering if I need to order anything else...

Question: When I hold the gun up the pump handle falls down about 6-8 inches. Will resealing it fix this or is there possibly something else going on?

Click to expand...

The Crosman 1400 doesn't have a link spring like the Sheridan and Benjamins. Make sure to adjust the pump rod to where the piston seal bottoms out and you have about 1/4 inch left between the pump handle and the compression cylinder before the pump handle fully closes. It may take a several times adjusting to get it perfect. It will also boost efficiency and guarantee the pump handle will not drop.