Air Venturi 4500 psi compressor issue

[Mikelo123]

Hey all,

Need a bit of advice....I have a 4500 PSI Air Venturi compressor (the big one). Had it about 6 months and no issues until today...

Builds pressure to about 500 or so PSI and then won't go any higher...

I know its under warranty but would rather attempt it myself instead of shipping and waiting etc. if anyone has any ideas??

Thanks all!!

 

[Yo]

 

[Yo]

 

[Yo]

 

[Yo]

 

[Yo]

 

[Yo]

I don't own one and never will based on the compliants about reliability issues going back several years. I suggest doing some online research before making any future purchases. Search function on this forum works for most who seek knowledge (OR NOT)

 

[Yo]

 

[2fast2furious]

Yo, could you stop spamming op's thread with your useless crap, my mom once said, if you dont have shyt to say that is helpful to others. Don't say it.

To op. The first thing to look for when its not building pressure is leaks. Even the smallest leak will prevent it from building pressure. Check all lines. Turn the compressor on and stop it. Listen to hissing. Look at the guage. Is pressure dropping? If there is no leaks and pressure doesn't drop. It can be the high piston rings. You have to take the cylinder heads and replace the high piston rings. It should come in a kit with the compressor.

The av compressor aint bad. I have the hatsan lighting which is basically the same compressor for 2 years and its still running fine. All compressor will have a problem with it, doesn't make it bad. Even a $2000 daystate have issues with it too.

 

[likkitysplyt]

I had the same thing happen with an Omega ... cracked piston. But 2F2F could easily be right about the air leaking. The majority of leaks would most likely be around the compressor's fill hose, your fill hose, the gauges, the fill tank, damage to the burst disk .. but a leak could pop up just about anywhere. I know ... they are a PIA, just take your time and you'll probably find it. If it is an air leak it is probably pretty big to be leaking at only 500 psi. When I had leaks they would usually stop building pressure around 3500 psi. Hope this helps.

Good Luck

Shalom

John

 

[Mikelo123]

Thanks guys for the info....Going to check it out today and see what I can find.

Worse case it is under warranty but don't want to deal with shipping etc. if I don't have to!!

I have a rebuild kit sans seals so will start there!! 

Luckily the nitrogen tank was swapped a few days ago so have air AND a day off so hoping to be able to get out between rain drops today if the honey do list doesn't get added to!!

I have the DayState 110v at the cabin and honestly have had more issues with that one than this one!!

 

[Yo]

I am surprised you haven't considered a BAUER yet. Or at least an ALKIN or Coltri MCH6. Given how much you invest into the sport Doctor...

 

[jarmstrong]

there is a reed valve on the outlet of the first stage, if the thin piece of metal gets bent up, it won't seal the backflow and will not build much pressure, it is sandwiched between a plate and a horseshoe shaped keeper. It needs to lay flat when againist the plate,

I had this problem with my Davv, which is a similar machine

 

[Mikelo123]

Thanks J...

Will take a look next. So far cleaned and replaced the o-rings etc. on the high side and still the same issue...

Will try that next!! 

Thanks again!

 

[jarmstrong]

you might be able the remove the keeper,,flip the reed over and reassemble,,if you find that is the issue,,or wait for a new one from who ever you order from

let us all know , I am not the only one watching

 

[Mikelo123]

This guy what were talking about...

 

[jarmstrong]

the plate under your hand on the table, has a thin piece of metal under the horse shoe, is it laying flat? againist the plate?

the piece u are holding is the inlet reed,,the u-shape is the 1st stage outlet side

 

[Mikelo123]

Looks like it...

 

[jarmstrong]

Yup, I can't tell for sure from the photo, but if there is a gap between the reed and the plate, it will leak back into the first stage piston, when the 2nd stage tries to compress, and will not build pressure, greater than what the 1st stage puts out

 

[Yo]

The $2000.00 Daystate Coltri MCH3 is another BUYER BEWARE compressor. The $3200 Daystate Coltri MCH6 is the reliable one but at that price the ALKIN will SMOKE IT AND EAT IT FOR DINNER!