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Author Topic: Is this big a dent removal  (Read 1432 times)

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Offline amitr0

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Is this big a dent removal
« on: January 28, 2022, 12:23:32 AM »
Is it possible to save this tank? What should I try?
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Offline dave500

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Re: Is this big a dent removal
« Reply #1 on: January 28, 2022, 12:54:17 AM »
bike must be running photo is so blurred?
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Online bryanj

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Re: Is this big a dent removal
« Reply #2 on: January 28, 2022, 03:53:03 AM »
 Wouls yes it can but only by a specialist
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Offline lowriderbud

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Re: Is this big a dent removal
« Reply #3 on: January 28, 2022, 08:58:34 AM »
Take it off the bike, clean it out, fill it up with water and put it in your freezer.  When the water expands it should put the dent out a little bit.  Thaw it out and refill it and try it again.  Don't get in a hurry it might take several attempts and still might need a bit of help.

I did this to a CB750-K tank and got 3/4s of the dent out.  Still had to tact couple of studs and use a slide hammer to get it real smooth.

Good Luck, Bud...
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Offline Alan F.

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Re: Is this big a dent removal
« Reply #4 on: January 28, 2022, 09:04:14 AM »
The water and freezing technique is not always advisable. Dents may partially pop out but seams may burst as well. Ask a paintless dent removal shop.
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Offline Alan F.

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Re: Is this big a dent removal
« Reply #5 on: January 28, 2022, 09:06:09 AM »
Quote from: dave500 on January 28, 2022, 12:54:17 AM
bike must be running photo is so blurred?

Yeah those 450's can vibrate a little.   ::)
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Offline Don R

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Re: Is this big a dent removal
« Reply #6 on: January 28, 2022, 09:07:23 AM »
 I had some luck with the glue on studs and puller. I'd be wary of freezing and compressed air, it can spread the tank open over the tunnel.
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Offline slikwilli420

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Re: Is this big a dent removal
« Reply #7 on: January 28, 2022, 09:41:10 AM »
Best and safest bet is a PDR specialist that does motorcycles. It will cost you but its the best course of action to have it done right.
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Offline amitr0

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Re: Is this big a dent removal
« Reply #8 on: January 28, 2022, 10:40:18 AM »
Quote from: lowriderbud on January 28, 2022, 08:58:34 AM
Take it off the bike, clean it out, fill it up with water and put it in your freezer.  When the water expands it should put the dent out a little bit.  Thaw it out and refill it and try it again.  Don't get in a hurry it might take several attempts and still might need a bit of help.

I did this to a CB750-K tank and got 3/4s of the dent out.  Still had to tact couple of studs and use a slide hammer to get it real smooth.

Good Luck, Bud...

That is a fantastic idea, will do it.
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Offline amitr0

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Re: Is this big a dent removal
« Reply #9 on: January 28, 2022, 10:42:19 AM »
Quote from: Alan F. on January 28, 2022, 09:06:09 AM
Quote from: dave500 on January 28, 2022, 12:54:17 AM
bike must be running photo is so blurred?

Yeah those 450's can vibrate a little.   ::)

Nopes, bike hasn't run in 30 years. It is the skill and equipment of the owner at play here :)
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Offline amitr0

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Re: Is this big a dent removal
« Reply #10 on: January 28, 2022, 10:42:52 AM »
Quote from: Alan F. on January 28, 2022, 09:04:14 AM
The water and freezing technique is not always advisable. Dents may partially pop out but seams may burst as well. Ask a paintless dent removal shop.

I see. Thanks
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Offline stocky

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Re: Is this big a dent removal
« Reply #11 on: January 28, 2022, 01:33:01 PM »
Quote from: Don R on January 28, 2022, 09:07:23 AM
I had some luck with the glue on studs and puller. I'd be wary of freezing and compressed air, it can spread the tank open over the tunnel.

I purchased a diy dent puller kit recently and also had success pulling dents out with the glue on studs but the one from OP looks decently big. Think there’s a good chance of pulling it out just not gonna look perfect.
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Offline Bankerdanny

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Re: Is this big a dent removal
« Reply #12 on: January 28, 2022, 01:35:35 PM »
I removed the big dents in my 750F tank when it fell off a table with this pin welder from Harbor Freight: https://www.harborfreight.com/welding/welders/stud-welder-dent-repair-kit-61433.html

It's easy to use and costs about $100.
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"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

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Offline Bankerdanny

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Re: Is this big a dent removal
« Reply #13 on: January 28, 2022, 01:41:54 PM »
Here is the dented tank and then the tank with the dents mostly out and some light filler to deal with the small amount of dent left, then the primed tank.
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"The problem with quotes on the Internet is that you never know if they're true" - Abraham Lincoln

Current: '76 CB750F. Previous:  '75 CB550F, 2007 Yamaha Vino 125 Scooter, '75 Harley FXE Superglide, '77 GL1000, '77 CB550k, '68 Suzuki K10 80, '68 Yamaha YR2, '69 BMW R69S, '71 Honda SL175, '02 Royal Enfield Bullet 500, '89 Yamaha FJ1200

Offline minimo

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Re: Is this big a dent removal
« Reply #14 on: February 05, 2022, 11:02:42 AM »
Manelord Dent Puller - Dent Remover with T bar Dent Puller and Upgraded Dent Puller Tabs for Car Dent Repair and Metal Surface Dent Removal https://www.amazon.com/dp/B082B3DKMS/ref=cm_sw_r_cp_api_glt_i_F90GVBS6HHNBCBVX7QQ9?_encoding=UTF8&psc=1

I believe that Harbor Freight sells a version also.

These hot glue dent pullers work decently.
It takes a while because you’ll have to clean off the glue after each pull attempt. Isopropyl alcohol works well to remove hot glue and speed up the process. Keep surfaces clean to ensure a good bond when applying hot glue. Degreaser/cleaner and tack rags help massively.

Rounds and edges are difficult to pull (Bondo is your friend here), but you’ll get the majority of major flat areas.


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Offline pjlogue

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Re: Is this big a dent removal
« Reply #15 on: February 06, 2022, 03:32:29 AM »
Quote from: Alan F. on January 28, 2022, 09:06:09 AM
Quote from: dave500 on January 28, 2022, 12:54:17 AM
bike must be running photo is so blurred?

Yeah those 450's can vibrate a little.   ::)

LOL!  Yea.  I had a 450 back in 74 and rode it a lot.  I went through quite a few wind up watches because the vibration would trash them.  I even had the small screws in my eyeglasses work their way out when I put my glasses in the duffle bag on one long trip.  Loved that bike though.  It had Hooker 2-1 exhaust and had a whole load of torque.  Very fun bike!

-P.
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