Oil pressure TMD41p

[jamie langstone]

My TAMD41-p oil pressure alarm and light come on when i have been running for sometime in 3000 range when I drop the engine back in to neutral. but the oil pressure gauge is reading above the 30 psi and around the 40 psi . If I rev the engine in neutral oil pressure goes up and the the alarm goes off or if I turn the engine off for 10mins and it goes off . Any idea .
Oil changed late last year
Thanks in advance

 

[Plum]

My TAMD41-p oil pressure alarm and light come on when i have been running for sometime in 3000 range when I drop the engine back in to neutral. but the oil pressure gauge is reading above the 30 psi and around the 40 psi . If I rev the engine in neutral oil pressure goes up and the the alarm goes off or if I turn the engine off for 10mins and it goes off . Any idea .
Oil changed late last year
Thanks in advance

I have not had that problem but as the warning light and gauge have separate sensors and the gauge is giving expected readings it is most likely the oil light sensor. I think you will have to bite the bullet and fit a new sensor and hope that fixes the problem.

Www.solocoastalsailing.co.uk

 

[russ]

I'm sure mine run at 60psi at tick over and only slightly more at 3200rpm.

 

[Jamie Dundee]

Mine runs at around 35psi when hot at idle and 85psi at much above 1000rpm. Tend to agree with Plum, sounds like your alarm sensor is playing up. I assume you used the correct spec oil and it’s where it should be on the dipstick?

 

[Plum]

Mine runs at around 35psi when hot at idle and 85psi at much above 1000rpm. Tend to agree with Plum, sounds like your alarm sensor is playing up. I assume you used the correct spec oil and it’s where it should be on the dipstick?

Yes, VP spec is 21psi at idle 60-71psi at WOT

 

[jamie langstone]

The correct oil was used so it could be the sensor. Thanks for your replies

 

[jamie langstone]

Thanks for the info. normality resumes Changed the sensor on the light and alarm for the oil pressure.

 

[QBhoy]

You’re a little low there, but not low enough for a genuine alarm I’d think. But having been about a few of these tamd engines, I can tell you that if you’re sure you’re oil pressure is sound enough, it’s a very common thing for the oil pressure switch to either fail and/or get slightly blocked. Best of luck.

 

[ChromeDome]

Presuming that oil level, oil filter and specified oil type & viscosity are all changed/correct?
Check electric connectors.
The 41 series do not call for any speciel engine oil but still need it to meet or exeed (API CD of 10W-20)

Lubricating System
Oil pressure, hot engine, operating speed, lubricating oil .................... 0.42–0.5 MPa (4.2–5 kp/cm 2) 59.7–71.1 lbf/in

Beyond senders for alarm and gauge also consider to check pressure by a known good gauge and (snip from a 40-series handbook):

 

[jamie langstone]

Thank you for the info QBhoy and Chrome Dome but it seem the sensor was faulty.

 

[ChromeDome]

Easy one then (and common..)