Great Planes Adjustable Oil Pressure Regulator

HomeBuiltAirplanes.com

Help Support HomeBuiltAirplanes.com:

N8053H

Well-Known Member
Joined
Jan 31, 2013
Messages
2,523
Location
Right here in front of my computer
I received my new oil pressure regulator from GP. Being my engine is newly rebuilt, anyone have any idea how many shims I should use under the spring?

I will take some pics. This is being installed in the morning.

Thanks

Tony
 

Pops

Well-Known Member
Log Member
Joined
Jan 1, 2013
Messages
7,866
Location
USA.
I don't understand the question. The allenhead adj screw(with the o-ring) goes through the cap and puts pressure on the small washer like piston at the bottom of the spring to adjust the pressure on the top long piston. No shims needed. Dan
 

N8053H

Well-Known Member
Joined
Jan 31, 2013
Messages
2,523
Location
Right here in front of my computer
Nope no directions. I was not expecting to see this either and I knew this was not what others expected to see. These are the things that drive me nuts. Why would they change this. I am not using it. I ordered a new pressure valve mine was scored. I will use this, but not this aluminum thing that was sent to me. I just do not like this.

I must remove it each time I want to change the washers to adjust the pressure. Its not even worth sending back. My Sonerai with the a-65 is looking better all the time. Its things like this that makes me want to stop using conversion engines. Nothing is uniform.

Tony
 

N8053H

Well-Known Member
Joined
Jan 31, 2013
Messages
2,523
Location
Right here in front of my computer
It would have been nice if this part was change for a reason, that this reason would have been wrote down on a piece of paper and sent with said part. This might have been updated to do way with the o-ring in the other design. It would just be nice to know why the change.

Tony
 

Hot Wings

Grumpy Cynic
HBA Supporter
Log Member
Joined
Nov 14, 2009
Messages
6,901
Location
Rocky Mountains
Its things like this that makes me want to stop using conversion engines. Nothing is uniform.
This is just one of the "joys" of working with Experimentals rather than certified. We trade one set of problems and advantages for another.
 

N8053H

Well-Known Member
Joined
Jan 31, 2013
Messages
2,523
Location
Right here in front of my computer
No reason for it to be this complicated. One little piece of paper would have answered all questions. Now I am waiting on a return phone call. Just seems a lot easier for both the purchaser and seller to add a little piece of paper with some info on it.

Imagine if he sold these to 1000 people and they all called with the same questions as I. He would get no work done or he would stop answering the phone and just take messages.


Tony
 

N8053H

Well-Known Member
Joined
Jan 31, 2013
Messages
2,523
Location
Right here in front of my computer
Still waiting on a call back from GP. I went ahead and replaced the valve. I used a new valve and the old spring and screw thing that holds it in. I did not use the adjustable unit.

Seems to be working fine now or as it was before I had this problem.

Tony
 

N8053H

Well-Known Member
Joined
Jan 31, 2013
Messages
2,523
Location
Right here in front of my computer
GP never did call me back. Would I buy an engine from this man. I doubt it, no customer service. Or maybe I do not warrant a call back. But either way I will only buy the bare min. from this company or just what I have to. I may not have deep enough pockets for this man to care what I want or need.

I learned a lot from this.

Some good info here.

Bob Hoover's Blog: OIL PLUGS - II

Tony
 

Vigilant1

Well-Known Member
Lifetime Supporter
Joined
Jan 24, 2011
Messages
4,732
Location
US
Tony,
Sorry about your situation. I've had >great< customer service from Steve at Great Plains, even when I was buying just a very small part (seriously--an oil sump gasket and washers). He's one of the good guys, sells good parts, and helps keep flying affordable for many people. Again, you are entitled to your opinion and there's no excuse for poor service. But he is a one man operation. I would send him an email with the same photo you posted and your questions--that makes it quick and easy for a busy guy to see the problem and give you an answer (and maybe he'll print out the email 50 times and stuff them into the boxes he sends out when people order one). "Stuff" happens.
 
Last edited:

N8053H

Well-Known Member
Joined
Jan 31, 2013
Messages
2,523
Location
Right here in front of my computer
Tony,
Sorry about your situation. I've had >great< customer service from Steve at Great Plains, even when I was buying just a very small part (seriously--an oil sump gasket and washers). He's one of the good guys, sells good parts, and helps keep flying affordable for many people. Again, you are entitled to your opinion and there's no excuse for poor service. But he is a one man operation. I would send him an email with the same photo you posted and your questions--that makes it quick and easy for a busy guy to see the problem and give you an answer (and maybe he'll print out the email 50 times and stuff them into the boxes he sends out when people order one). "Stuff" happens.
His message says...We will get back with you just leave name and number. I did just that. I would say what I called about was low on the totem poll. Maybe his message should say. I will get back with you if I feel its needed.

It may seem trivial to some but to me it was important. Since I never heard from him I did not use his part. It went in my tool box.

I used a new valve and reused all other parts. Seems to work great know. No more oil pressure fluctuation.

Tony
 

Topaz

Super Moderator
Staff member
Log Member
Joined
Jul 29, 2005
Messages
14,077
Location
Orange County, California
Do remember that Oshkosh just ended. He's probably working through a huge backlog of mail and messages. If you left just one message, there's always the possibility that it was accidentally erased. I'd definitely follow up with an e-mail before writing them off completely.
 

N8053H

Well-Known Member
Joined
Jan 31, 2013
Messages
2,523
Location
Right here in front of my computer
Do remember that Oshkosh just ended. He's probably working through a huge backlog of mail and messages. If you left just one message, there's always the possibility that it was accidentally erased. I'd definitely follow up with an e-mail before writing them off completely.
This is true and I never thought of this.

Tony
 

N8053H

Well-Known Member
Joined
Jan 31, 2013
Messages
2,523
Location
Right here in front of my computer
Now I am getting frustrated. When flying last evening oil pressure went to 5 lbs. I idle down. Knowing I was not flying long and only a few miles from my field I throttled back up. Oil pressure jumped right back to 5o lbs. I landed and man was it a nice evening to be landing 45 mins before the sun went down.

This either gets worked out or I am selling this airplane. This never happened before. I flew this airplane for over 100 hrs and never had these problems. Then I screw my engine up from crappy main. and she has never been the same.

Since receiving this engine back I have put 30 hrs on her. I wish I could say trouble free hrs. I doubt I will ever fly this engine more then a few miles from my home field. I do not trust it.

Time to get my Sonerai up and flying with the a-65. I believe I am done with auto conversions and two strokes. My A-65 was rebuild not long ago, has great compression, but I know nothing of the mags. They look good but judging a book by its cover never works. Why I use a borescope.

The GP Adjustable thing is going in. I am changing the spring, I already changed the Valve piston thing. I am ground running her. If the fluctuation does not stop, I am never flying this airplane again. It will be grounded and sold.

Tony
 

Pops

Well-Known Member
Log Member
Joined
Jan 1, 2013
Messages
7,866
Location
USA.
Now I am getting frustrated. When flying last evening oil pressure went to 5 lbs. I idle down. Knowing I was not flying long and only a few miles from my field I throttled back up. Oil pressure jumped right back to 5o lbs. I landed and man was it a nice evening to be landing 45 mins before the sun went down.

This either gets worked out or I am selling this airplane. This never happened before. I flew this airplane for over 100 hrs and never had these problems. Then I screw my engine up from crappy main. and she has never been the same.

Since receiving this engine back I have put 30 hrs on her. I wish I could say trouble free hrs. I doubt I will ever fly this engine more then a few miles from my home field. I do not trust it.

Time to get my Sonerai up and flying with the a-65. I believe I am done with auto conversions and two strokes. My A-65 was rebuild not long ago, has great compression, but I know nothing of the mags. They look good but judging a book by its cover never works. Why I use a borescope.

The GP Adjustable thing is going in. I am changing the spring, I already changed the Valve piston thing. I am ground running her. If the fluctuation does not stop, I am never flying this airplane again. It will be grounded and sold.

Tony
Do you have an electric oil pressure gauge ? Dan
 
2
Top