gorschal
31.05.2021 14:26:17
This may be repetitive. I apologize.
I saw my name mentioned regarding a post on this subject. I couldn't find it but I'll take the risk of possibly repeating myself. here
See full version: Tugnuts yanmar low pressure oil alarm
This may be repetitive. I apologize.
I saw my name mentioned regarding a post on this subject. I couldn't find it but I'll take the risk of possibly repeating myself. here
I tested and confirmed all these theories with a gauge installed with the sensor using a tee. Trying to remember. On start up at idle the cold oil pressure might be 40-50 psi. Then at higher rpms still running cool, it might go to 75+ psi. But as soon as the temps get up in the high 100's it drops back to 60-65 psi and everything is happy. That is why the "faulty" reading goes away. The broken wire in the rheostat is somewhere above the normal pressure. (don't ask me why it broke up there) I had the exact same problem on a gas tank sensor in an antique car back in 2014 so diagnosis of all this was easy.
by CaptainT on Mon Oct 14, 2019 7:29 am more
by scross on Mon Jan 28, 2019 2:47 pm
I purchased our new oil pressure sender here:
Kelly Tour-Parts
Cook Engines, Portland, OR
Ph # 503-289-8466
Fax # 503-286-2836
website:http://www.cookengine.com more
by TexasEye on Sun Jul 29, 2018 3:11 pm
by 03mercedes on Sun Jul 29, 2018 9:40 am
Yes, I agree the Yanmar engine display is not easy to see and I always had a flashlight handy for shining it on the display at times.
There were several Yanmar Tech notes with one related to oil pressure I believe. check this out with a search in this forum. here
by TexasEye on Sun Jul 29, 2018 1:21 pm more
If I recall correctly, when you first turn the engine start key to first indent doesn't the signal sound while the engine oil builds up pressure, and then when this signal stops one cranks the engine ? . or maybe that signals refers to fuel build up pressure. maybe others can chime in on this for you. here
by SkookumR29 on Sat May 16, 2020 6:53 pm here
by vertigo on Wed Jan 29, 2020 11:56 pm more
That was several years ago and we've long since parted ways with Wallas. So I don't have the info on supplier and part no. As to how I got there, the combustion fan failed on the stove. I took it apart and found a part no. on the motor. Google did the rest. more
by macmac on Mon Feb 17, 2020 1:47 pm more
by vertigo on Sun May 17, 2020 3:41 pm
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