SEARCH FINESCALE.COM

Enter keywords or a search phrase below:

My Iwata doesn't hold the pressure any longer

1166 views
4 replies
1 rating 2 rating 3 rating 4 rating 5 rating
  • Member since
    November 2008
My Iwata doesn't hold the pressure any longer
Posted by Arespontus on Monday, August 27, 2012 11:32 AM

Hello 

My Iwata Smartjet no longer holds the pressure in. When I got the Iwata I could leave it on all night and not lose any pressure. Now if I leave the Iwata on it will lose all pressure in about 45 minutes. 

If I use the airbrush it will fill up with air as I'm using the airbrush. However I am waking up to the sound of the compressor in the middle of the night.

I checked the hose and connections for leaks and couldn't find any

Does anyone have a suggestion?

Thank you

Scott

  • Member since
    October 2007
  • From: Scotland
Posted by Milairjunkie on Monday, August 27, 2012 1:25 PM

If you are certain that you don't have any external leaks I would suspect a loosening cylinder head or dirty non-return valve.

You can check the cylinder head plate easily - get a hex key & ensure that the four bolts that you can see on the cylinder head are reasonably tight (no excessive tightening required).

The non-return valve is fitted on the top of the cylinder plate, which is the directly below the cylinder head, the valve can become contaminated with gunk (a combination of dirt that has passed the intake air filter & shed main seal material (nothing to worry about)) & fail to seat properly - the valve can be striped & cleaned.

If you have a look at the Iwata parts diagram, the non return valve is on page 3 & is the Check Valve on the call out to the left;

http://www.iwata-medea.com/images/iwata-pdf/Smart%20Jet%20OM_REV2.pdf

  • Member since
    April 2009
  • From: Longmont, Colorado
Posted by Cadet Chuck on Monday, August 27, 2012 1:51 PM

Maybe it has something to do with the fact that you are leaving it turned on all night, and presumably all day, too.  This could contribute to stressing seals and other components to the point that they are wearing out and developing a slight leak.  I would suggest you turn it off when not in use.

Gimme a pigfoot, and a bottle of beer...

  • Member since
    October 2007
  • From: Scotland
Posted by Milairjunkie on Monday, August 27, 2012 2:09 PM

Cadet Chuck

turn it off when not in use.

 
Ditto
  • Member since
    February 2007
Posted by mitsdude on Tuesday, August 28, 2012 2:04 AM

I wouldn't leave it on all the time unless it was frequently being used during the day. Kinda like a compressor in a tire or woodworking shop where its used off and on during the day. And I think most of those kinda places turn them off after working hours. To easy to have a small leak when no one is around and have the compressor running through the night.

JOIN OUR COMMUNITY!

Our community is FREE to join. To participate you must either login or register for an account.

SEARCH FORUMS
FREE NEWSLETTER
By signing up you may also receive reader surveys and occasional special offers. We do not sell, rent or trade our email lists. View our Privacy Policy.