: = --------------=20 Hi, all....I just installed a M10x1/0 VDO water temp sensor in the = water temp location next to the oil filter. Hooked it to my AV-10 engine = monitor, and readings are incorrect. Prior to starting the engine, my = ECU indicated 26C (78F), but my engine monitor indicated 148F. Then I = ran it for a couple of minutes to see if the temps would climb, and they = did. The ECU temp went up to 32C (89F) and the engine monitor display = read 160F. I will go into my AV-10 engine monitor manual and try to = find out if it requires a different sensor than VDO, or if it can be = calibrated, etc. It worked very well attached to the stock Mazda water = temp sender located on the water pump housing, but that is when I = mistakenly shared it's connection with the ECU. When the engine monitor = read 230 degrees, the water would in fact be boiling and spitting out = the overflow tank, so if it wasn't totally accurate, it was obviously = very close. Engine is still running great, however, so there's hope. I = just would prefer both temp displays working properly before flying it. = Take care. Paul Conner ------=_NextPart_000_000F_01C535F9.ED94FBE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi, Kelley....no, I did not get it to = read=20 correctly. I just got back from the machinist, who made a = bushing/adapter for me=20 so I can use another stock Mazda water temp sender. The stock Mazda temp = sender=20 works well with my engine monitor, so I will just have two of those. I = have a=20 1/4"NPT hole that I had previously drilled and tapped right next to the = stock=20 Mazda water temp sender, so I had an adapter made that screws into the = 1/4 NPT=20 hole and the Mazda temp sender screws into that. I installed it today, = but ran=20 out of time to work on it, so I will attach the wires tomorrow. = Paul=20 Conner

----- Original Message -----
From:=20 Kelly = Troyer
To: Rotary motors in = aircraft

Sent: Wednesday, March 30, 2005 = 7:59=20 AM

Subject: [FlyRotary] Re: = Incorrect water=20 temp display

Paul,

Did you ever get that "VDO" sensor to read right ??

--
Kelly Troyer
Dyke=20 Delta/13B/RD1C/EC2

--------------=20 Original message from "Paul" <sqpilot@bellsouth.net>: = --------------

Hi, all....I just installed a = M10x1/0 VDO=20 water temp sensor in the water temp location next to the oil filter. = Hooked=20 it to my AV-10 engine monitor, and readings are incorrect. Prior to = starting=20 the engine, my ECU indicated 26C (78F), but my engine monitor = indicated=20 148F. Then I ran it for a couple of minutes to see = if the=20 temps would climb, and they did. The ECU temp went up to 32C (89F) = and the=20 engine monitor display read 160F. I will go into my AV-10 = engine=20 monitor manual and try to find out if it requires a different sensor = than=20 VDO, or if it can be calibrated, etc. It worked very well = attached to=20 the stock Mazda water temp sender located on the water pump housing, = but=20 that is when I mistakenly shared it's connection with the ECU. = When=20 the engine monitor read 230 degrees, the water would in fact be = boiling and=20 spitting out the overflow tank, so if it wasn't totally accurate, it = was=20 obviously very close. Engine is still running great, however, = so=20 there's hope. I just would prefer both temp displays working = properly=20 before flying it. Take care. Paul=20 Conner

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