Oil Pressure sendin unit relocate.
Thread Starter
Le Mans Master
Joined: Jun 2007
Posts: 6,301
Likes: 6
From: LAND OF OZ Kansas
Oil Pressure sendin unit relocate.
After having relocated the OPSU, has anyone had any sending units go bad. I've replaced THREE
freaken sending units, and I'm thinking about doing the relocate procedure now. I'm sord of mad at having to go through all that trouble every time it goes bad.
freaken sending units, and I'm thinking about doing the relocate procedure now. I'm sord of mad at having to go through all that trouble every time it goes bad.
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
I've seen posts from a few guys who have had sensors go bad quite quickly after replacement.
Sounds like the relocate mod may be a plan.
Sounds like the relocate mod may be a plan.
Thread Starter
Le Mans Master
Joined: Jun 2007
Posts: 6,301
Likes: 6
From: LAND OF OZ Kansas
Yeah, relocating is my next move, but what I'm wondering is as to how many sensors have gone bad after they have been relocated? I've already found threads that show the parts needed to relocate and how to do it, but I'm still not sure as to how many of the new relocated sensors have gone bad...
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
There is a long thread at the top of this Tech section that talks a lot about the oil pressure sending unit and possible relocations. I too did the relocation to the fuel rail and so far, there have been no more problems.
Thread Starter
Le Mans Master
Joined: Jun 2007
Posts: 6,301
Likes: 6
From: LAND OF OZ Kansas
the thread on top talks about the relocation, but I'm thinking about usin copper for my relocation. I saw another post where a guy used copper or ss tubbing, so that is what I'm going to use.
I have more question???
Are the reading of the new relocated sensor the same as it was when it sat on top of the engine?
Are you guys using the same Corvette oil presure sendin unit, or are you going with the Buick sensor, or the standard part numbers PS-401 AND PS-308?
So many questions, so little time.
I have more question???
Are the reading of the new relocated sensor the same as it was when it sat on top of the engine?
Are you guys using the same Corvette oil presure sendin unit, or are you going with the Buick sensor, or the standard part numbers PS-401 AND PS-308?
So many questions, so little time.
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
I'm one of those who used copper due to my concerns with the oil temperature vs plastic tubing with lower temperature thresholds. Simply put, copper was a lot safer than taking a chance of the plastic melting. I did not notice a change in PSI readings. Some people like to cut holes in the upper shroud area therefore easier to replace it in the normal location. I wasn't willing to do that. I don't remember anyone having issues with the Buick sender other than you have to do a little more adapting. I'm using the normal one. I tend to suspect that the failure is casued by a poor design which we all are pretty sure of but adding my own idea that it may simply be too much heat there, for that design. I'm using a PS-308 at this moment.
Thread Starter
Le Mans Master
Joined: Jun 2007
Posts: 6,301
Likes: 6
From: LAND OF OZ Kansas
Thank you. I'll ge to working in the car with in the next couple of weeks. I've gotta let the hollydays go by, and then I'll be in for trying out the relocating of the sensor, and the PS-308 sending unit is what I'll use. Thanks...
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Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
The relocate works.
If you want to go the extra mile, I believe summit racing and others offer stainless steel lines. Flexible like the nylon hose and more durable than copper.
If you want to go the extra mile, I believe summit racing and others offer stainless steel lines. Flexible like the nylon hose and more durable than copper.
Drifting
Joined: Mar 2003
Posts: 1,398
Likes: 1
From: Kingsport TN
See my post # 272 on the relocate sticky:
http://forums.corvetteforum.com/show...1588172&page=7
That should help you find all the parts you need for a nice stainless steel line relocate. I used the Buick sender since it's copper and so far so good. Much easier to replace should it fail now that it is easily accessible and tucked away from sight under my driver's side fuel rail cover.
Enjoy! 
http://forums.corvetteforum.com/show...1588172&page=7
That should help you find all the parts you need for a nice stainless steel line relocate. I used the Buick sender since it's copper and so far so good. Much easier to replace should it fail now that it is easily accessible and tucked away from sight under my driver's side fuel rail cover.
Enjoy!
Former Vendor
Joined: Nov 2005
Posts: 8,995
Likes: 2
From: Spring Texas
St. Jude Donor '08
Just a reminder to those doing (or thinking about) the relocate: Make sure to use plumbers tape on the connectors or you WILL get a leak. This is only nessicary on the OPSU and adapters, not the block side of the hose.
Burning Brakes
Joined: Aug 2005
Posts: 845
Likes: 0
From: Mesa Arizona
I did the relocate with copper tubing & Buick sensor couple of months ago. Do use plumbers tape for sure, I forgot to do some of the threads to the combo under FRC & figured it'll be OK. Yeah, right. Oil all over driver's side head, exhuast & onto garage floor.
Works great, no more problems, but a little quirk. Buick sensor reads approx. 10-12 lbs higher at all rpm than stock sensors did. And I had 3 sensors replaced in stock position. Was expensive to have replaced, really glad I did relocate.
Works great, no more problems, but a little quirk. Buick sensor reads approx. 10-12 lbs higher at all rpm than stock sensors did. And I had 3 sensors replaced in stock position. Was expensive to have replaced, really glad I did relocate.
Drifting
Joined: Nov 2006
Posts: 1,682
Likes: 2
From: Plano Texas
St. Jude Donor '08
See my post # 272 on the relocate sticky:
http://forums.corvetteforum.com/show...1588172&page=7
That should help you find all the parts you need for a nice stainless steel line relocate. I used the Buick sender since it's copper and so far so good. Much easier to replace should it fail now that it is easily accessible and tucked away from sight under my driver's side fuel rail cover.
Enjoy!
http://forums.corvetteforum.com/show...1588172&page=7
That should help you find all the parts you need for a nice stainless steel line relocate. I used the Buick sender since it's copper and so far so good. Much easier to replace should it fail now that it is easily accessible and tucked away from sight under my driver's side fuel rail cover.
Enjoy!