lsdweb
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| posted on 14/3/06 at 04:17 PM |
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R1 Oil pressure and temperature sender mounting
Hi All
I'm trying to work out the best way of mounting the senders for my Spa oil pressure / temp gauge (thanks Pat!).
I've read somewhere that it's best to isolate the sensors from the engine via a flexi hose to reduce vibration. I was thinking of drilling
and tapping the large bolt securing the oil cooler, as this will take a feed almost directly from the pump, and feeding both sensors from this.
Any thoughts? The oil temperature sender is 1/8” NPT and the pressure 1/8” BSP.
Regards
Wyn
 
Rescued attachment r1 oil cooler.JPG
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ChrisGamlin
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| posted on 14/3/06 at 06:16 PM |
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Hi Wyn
You've come to the same conclusion as a lot of people as that is a popular place to tap into for oil pressure 
There's also a blanking bolt somewhere on the block that taps into the same gallery as the main / big end bearings but I havent had a look
myself, but somewhere under the exhaust ports rings a bell.
Chris
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Bob C
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| posted on 14/3/06 at 06:25 PM |
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I whacked my sender straight into the bolt
http://freespace.virgin.net/bob.carter/images/oilcoolpress.jpg
If it drops off I'll post to the list. It has lasted for about 12 seconds so far....
cheers
Bob
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ChrisGamlin
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| posted on 14/3/06 at 06:30 PM |
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I dont tink they necessarily drop off and break (unless they are overly large), its more that the senders are quite sensitive and the vibrations
quickly get to them. Several people on the Yahoo BEC list had failures when solidly mounting them so for the sake of a £10 hose I'd remotely
mount it personally.
[Edited on 14/3/06 by ChrisGamlin]
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jimgiblett
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| posted on 14/3/06 at 07:06 PM |
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I had my sensor remotely mounted on both my old carb engine and on my new FI motor plumbed in via the oil cooler bolt.
As Chris says hard mounting them destroys their innards very quickly.
My old R1 install is here.
Cheers
Jim
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lsdweb
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| posted on 14/3/06 at 09:04 PM |
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Thanks guys
Great information (as usual!).
My one concern was siting the temperaure sender away from the sump / flow - I was tempted to tap this into the old oil level warning switch but I
think this may sit above the oil level! I don't have the engine at home at present (it's
here) so I can't check. I may consider the sump plug instead.
Regards
Wyn
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ChrisGamlin
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| posted on 14/3/06 at 09:14 PM |
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Sorry, just re-read your original post saying about both senders, but the above only applies to the pressure sender. The temp sender has to be
in the oil flow as you mention, although the temperature senders dont seem to be susceptable to the vibrations, presumably because they are solid
state.
I just welded in a boss in the side of the sump, I would be wary of putting one in through the sump plug if ground clearance is any sort of issue at
all 
[Edited on 14/3/06 by ChrisGamlin]
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lsdweb
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| posted on 14/3/06 at 09:27 PM |
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Once again - thanks guys.
I'll look at getting a boss welded in to the sump - I have a little ground clearance but probably not enough to clear the bend in the cable
sufficiently.
Regards
Wyn
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ChrisGamlin
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| posted on 14/3/06 at 09:42 PM |
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Give me a shout if you get stuck as my uncle would only charge a tenner to put one in, but it will cost more than that in postage each way so probably
easier to get a local fabricator to do it for a few beers.
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lsdweb
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| posted on 14/3/06 at 10:05 PM |
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Thanks Chris
Hopefully, I'll be able to get it done locally.
Wyn
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Bob C
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| posted on 14/3/06 at 11:27 PM |
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So the perception is that the engine vibration taters the pressure sender. Yet these things are designed to screw directly into an engine? admittedly,
they are designed for an engine doing 6k rather than 12k revs!!!!
As I said, I'll keep an eye on it & report if I have any issues (the bolt's threaded M10x1.0 now so a flexi is easy to fit)
cheers
Bob
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Guinness
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| posted on 15/3/06 at 07:59 AM |
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Sorry I dno't know about the R1, but I'm busy fitting oil pressure and temp senders to the Kwak and have found these guys incredibly
helpful.
LMA Group
Their Gauge Fitting Parts section had all the adaptors I needed. They also do a remote fitting kit for different threads.
Phoned up an ordered on Monday, parts arrived Tuesday. Found I needed an additional part on the Wednesday, phoned up, got to speak to the boss, who
was really helpful and again parts arrived next day.
HTH
Mike
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lsdweb
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| posted on 15/3/06 at 08:26 AM |
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I'm going to use a length of flexi hose for the oil pressure sender - I have an old (unused) brake line with 10mm male fittings each end. I can
tap this into the bolt at one end and buy an adaptor for the gauge for the other end. This will save me having to source a BSP tap!
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Ferrino
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| posted on 15/3/06 at 10:25 AM |
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quote:
I was tempted to tap this into the old oil level warning switch but I think this may sit above the oil level
I have done just this as
it seems a logical place to put the oil temp sensor - right in the mix! Surely Yamaha would design the oil level switch to be submerged under the oil
level!
I originally had the temp sensor coming off a tee-piece in the oil cooler bolt.
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lsdweb
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| posted on 15/3/06 at 08:07 PM |
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Hi Ferrino
As I don't have access to the engine, just a spare sump, I couldn't check the actual height of the oil level although I was hoping it
would be OK! I think this is the route I'll take, it just means I have to get an NPT tap.
Regards
Wyn
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