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Dieseling

Posted: Thu Oct 02, 2008 1:04 pm
by aim2please
My game shadow 1000 has been dieseling quite a bit lately(i know most air rifles diesel a bit but when i shoot and open the barrel lots of smoke comes out) . I think when i wiped it down with my regular gun oil some may have gotten in to the barrel. Will a silicone spray eleminate this or is there anything else i can do?

When i look down the barrel there is no obvious gunk or anything else in there??

Re: Dieseling

Posted: Thu Oct 02, 2008 1:21 pm
by native hunter
G'day
Firstly,DONT put silicone oil or spray anywhere near your airgun,it will soak into the poars of the metal and create gaulling on moving parts.
You could try a heavier pellet to slow the piston down and hope that it may settle.
Other wise it has already done the damage to the piston cup.(the heat created has cooked the seal.)
sell it and speak to Lewis and get a nice airgun. :roll: :roll:
No doubt lewis will be along to give you some advice.
Regards

Re: Dieseling

Posted: Thu Oct 02, 2008 2:49 pm
by fenring
If it's just mild dieselling (a bit of smoke and a smell of burned oil) it shouldn't cause too much drama unless it goes on for a long time.

The other type of dieselling is "detonation" whereby there's a loud bang like a .22 - that's bad and can break springs and burn seals quick smart.

It's possible with the warmer weather coming that some of the factory lube has loosened up and moved forward to the compression chamber. Don't store the gun muzzle down as that will only make it worse.

As NH suggested, get hold of some heavier pellets and fire a few of those - it can help slow the piston down to the point where there's not enough heat to burn the lube and help blow the excess lube clear. In the long term heavy pellets can be bad for the spring though.

No silicon lube no matter what the gun shop says!

Re: Dieseling

Posted: Thu Oct 02, 2008 4:59 pm
by Lewis Reinhold
aim2please wrote:My game shadow 1000 has been dieseling quite a bit lately(i know most air rifles diesel a bit but when i shoot and open the barrel lots of smoke comes out) . I think when i wiped it down with my regular gun oil some may have gotten in to the barrel. Will a silicone spray eleminate this or is there anything else i can do?

When i look down the barrel there is no obvious gunk or anything else in there??

Great advice for you there from both guys.
Doesn't sound like serious dieselling,just a bit of gassing.
DEFINITELY no silicon anything anywhere!Keep the gunoil away from it.
Grab some heavier pellets and if it's still gassing at 500 shots,I'd be sending it back.

Re: Dieseling

Posted: Thu Oct 02, 2008 11:08 pm
by aim2please
Thanks guys i thought i read that silicone will settel down the dieseling :? But i know that you guys know what your talking about.

Are those felt cleaning wads any good?

BTW at first the gun never dieseled but it has been recently and occasionly it will sound like a 22lr but usually it will just smoke and i can't get any accuracy out of it. Is there anything else i can use beside heavy pellets? I'll be more then likely going to my LGS and i'll grab so heavier pellets then. Any thing else i should get while im there?



EDIT: Just forgot to say the gun is about 2 years old but i havent used it much, put less then 1000 rounds through it.

Re: Dieseling

Posted: Fri Oct 03, 2008 7:05 am
by Lewis Reinhold
aim2please wrote:Thanks guys i thought i read that silicone will settel down the dieseling :? But i know that you guys know what your talking about.

Are those felt cleaning wads any good?

BTW at first the gun never dieseled but it has been recently and occasionly it will sound like a 22lr but usually it will just smoke and i can't get any accuracy out of it. Is there anything else i can use beside heavy pellets? I'll be more then likely going to my LGS and i'll grab so heavier pellets then. Any thing else i should get while im there?



EDIT: Just forgot to say the gun is about 2 years old but i havent used it much, put less then 1000 rounds through it.
There is no place anywhere on a modern airgun for silicon oil.
Felt pellets are great.Always use one with a real pellet behind it.
Sounds like it injested some flammable gun oil.
Accuracy troubles rarely trace back to the airgun provided it's working OK.Usual problems are
Wrong/poor quality pellets
Non airgun scope
Poor technique especially bench resting.
What calibre is it?

Re: Dieseling

Posted: Fri Oct 03, 2008 9:17 am
by aim2please
Lewis Reinhold wrote:
aim2please wrote:Thanks guys i thought i read that silicone will settel down the dieseling :? But i know that you guys know what your talking about.

Are those felt cleaning wads any good?

BTW at first the gun never dieseled but it has been recently and occasionly it will sound like a 22lr but usually it will just smoke and i can't get any accuracy out of it. Is there anything else i can use beside heavy pellets? I'll be more then likely going to my LGS and i'll grab so heavier pellets then. Any thing else i should get while im there?



EDIT: Just forgot to say the gun is about 2 years old but i havent used it much, put less then 1000 rounds through it.
There is no place anywhere on a modern airgun for silicon oil.
Felt pellets are great.Always use one with a real pellet behind it.
Sounds like it injested some flammable gun oil.
Accuracy troubles rarely trace back to the airgun provided it's working OK.Usual problems are
Wrong/poor quality pellets
Non airgun scope
Poor technique especially bench resting.
What calibre is it?

Thanks i'll pick up some felts today:)
Yeah i think some must of got into the barrel:(
Well last time i shot it i was resting it so maybe thats why i was getting poor accuracy lol
I use Gamo pro magnums yeah i know there cheap but i also use RWS (starts with M not going to try and spell it lol) and they provide slightly better accuracy
It is an airgun scope
Its a .177

I just wish i knew this forum before i purchased it, i would have defientialy bought a better quality gun of you lewis

Also what is the reccomended way so sight in a springer if you cant rest it?

Thanks for all the advice everyone :D

Re: Dieseling

Posted: Fri Oct 03, 2008 10:13 am
by gigitt
You will have a hard time sighting in a springer AR off the bench as the mechanical force of the spring action will always move the rifle POI when you pull the trigger - Newtons Law of Physics every force has an equal force in the opposite direction.

You will have to free-hand your AR sighting in.

I'm no expert but I have a very heavy AR, with a strong spring action and this is what I do.

I found sitting down and having a steady rest for my front arm's elbow the big key.
I lock my off arm elbow to the side of body and shoot the AR across my chest. My body is pointing nearly 90deg from the target.
Place your off hand just in front of the trigger guard so that your arm is vertical.
The rifle sits in the palm of your hand with your finger pointing down the stock towards your target.
You can also rest the rifle on top of a clenched fist to get some more height.
If you want more steadiness, you could try sitting on a stool with you back against a wall or door jam.

Your AIM rises up as you breath in - but do not hold your breath as you squeeze the trigger as then your blood pressure rises slightly and your heart beat will thump harder and also affect you POI.

Be comfortable with a steady and light hold and squeeze the trigger when your ready in a couple of breath cycles.
Don't wait too long as you will then start to anticipate and something will start to change slightly - firm up your grip, pull the rifle into the shoulder more or less, hold your breath etc. You are better off starting your aim again after a few rest breaths.

Shoot 5 shots with the same rhythm and routine.
If you want then try a different routine but shoot 5 shots again. eg change your trigger hand thumb position, trigger hand grip pressure, pull into the shoulder, squeeze the trigger at a different point in your breath cycle etc.

The key is repeatability.
You need to get into a rhythm.
This is especially true when you then go hunting with the AR.

Have Fun Plinking. :)

Re: Dieseling

Posted: Fri Oct 03, 2008 1:53 pm
by Lewis Reinhold
aim2please wrote:
Lewis Reinhold wrote:
aim2please wrote:Thanks guys i thought i read that silicone will settel down the dieseling :? But i know that you guys know what your talking about.

Are those felt cleaning wads any good?

BTW at first the gun never dieseled but it has been recently and occasionly it will sound like a 22lr but usually it will just smoke and i can't get any accuracy out of it. Is there anything else i can use beside heavy pellets? I'll be more then likely going to my LGS and i'll grab so heavier pellets then. Any thing else i should get while im there?



EDIT: Just forgot to say the gun is about 2 years old but i havent used it much, put less then 1000 rounds through it.
There is no place anywhere on a modern airgun for silicon oil.
Felt pellets are great.Always use one with a real pellet behind it.
Sounds like it injested some flammable gun oil.
Accuracy troubles rarely trace back to the airgun provided it's working OK.Usual problems are
Wrong/poor quality pellets
Non airgun scope
Poor technique especially bench resting.
What calibre is it?

Thanks i'll pick up some felts today:)
Yeah i think some must of got into the barrel:(
Well last time i shot it i was resting it so maybe thats why i was getting poor accuracy lol
I use Gamo pro magnums yeah i know there cheap but i also use RWS (starts with M not going to try and spell it lol) and they provide slightly better accuracy
It is an airgun scope
Its a .177

I just wish i knew this forum before i purchased it, i would have defientialy bought a better quality gun of you lewis

Also what is the reccomended way so sight in a springer if you cant rest it?

Thanks for all the advice everyone :D
A lot of 'airgun scopes' sold will not hold up.All that is 'airgun' about them is adjustable parallax aka AO.
They are not built to take the recoil and vibration.Lots are finding this out the hard way.
You need proper airgun mounts too!
I suggest Beeman FTS or JSB Exacts as top choice.If it doesn't group then,look elsewhere.
I can set you up with those.
Roundheads are best!

Re: Dieseling

Posted: Fri Oct 03, 2008 6:46 pm
by aim2please
Just wandering Lewis what would my shadow 1000 be worth it has fired around 500 pellets and is in good condition. The scope is a tasco 4x32 yeah i know its a fairly cheap combo i just wised i head these forums before i spent the money. I know it would be hard to give a price without actually looking at it and inspecting it. I think i got the gun for around $320 the scope was around $160 and $40 for mounts (when i come to think of it i got ripped of big time ) so in total i spent around $520 im thinking around $250-300? or is that too much?

Re: Dieseling

Posted: Fri Oct 03, 2008 7:06 pm
by Lewis Reinhold
aim2please wrote:Just wandering Lewis what would my shadow 1000 be worth it has fired around 500 pellets and is in good condition. The scope is a tasco 4x32 yeah i know its a fairly cheap combo i just wised i head these forums before i spent the money. I know it would be hard to give a price without actually looking at it and inspecting it. I think i got the gun for around $320 the scope was around $160 and $40 for mounts (when i come to think of it i got ripped of big time ) so in total i spent around $520 im thinking around $250-300? or is that too much?
Price sounds about right.
Don't forget to mention '1000FPS' in your ad and you'll be on the way.

Re: Dieseling

Posted: Fri Oct 03, 2008 8:02 pm
by ogre6br
Lewis Reinhold wrote: Price sounds about right.
Don't forget to mention '1000FPS' in your ad and you'll be on the way.
your time away has improved you delivery of the funnies

just dont sell it to a mate

because once he see's what you buy from Lewis he will be pissed at you at being dudded by you foisting off your less than good AG on him.

later
p

Re: Dieseling

Posted: Fri Oct 03, 2008 9:38 pm
by Lewis Reinhold
ogre6br wrote:
Lewis Reinhold wrote: Price sounds about right.
Don't forget to mention '1000FPS' in your ad and you'll be on the way.
your time away has improved you delivery of the funnies

just dont sell it to a mate

because once he see's what you buy from Lewis he will be pissed at you at being dudded by you foisting off your less than good AG on him.

later
p
Thanks P.
It's so true though.It will not sell without at least mentioning '1000FPS'.It is expected now like '3/8 dovetail' and 'adjustable trigger'.

Re: Dieseling

Posted: Fri Oct 03, 2008 10:43 pm
by aim2please
Can anyone recomend a place where i can sell it?

Re: Dieseling

Posted: Fri Oct 03, 2008 11:12 pm
by gigitt
Trade it in for something bigger! :P

or try usedguns.com.au
You will have to tranfer it through a dealer.