Back of the garage

Nice to see someone posting technical pics on the forum, looks like you've been making real progress on Harvey. I'm contemplating going the electric fan route. Not sure whether to save money and get a sensor that switches at a fixed temp or pay a few quid extra and get an adjustable one??
 
Finished of the steering column adapter - I think it needs a lick of paint:I

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Also had a fiddle with the throttle linkage - since fitting the SU I've only managed to get about half the travel there should be. I played about with the extension bracket I made (to account for moving the rad forward) so the crank sat at a different angle and adjusted the turn-buckle under the pedal. I now have about 90% travel - I'll call it an economy device:I

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Originally posted by Chamba

Nice to see someone posting technical pics on the forum, looks like you've been making real progress on Harvey. I'm contemplating going the electric fan route. Not sure whether to save money and get a sensor that switches at a fixed temp or pay a few quid extra and get an adjustable one??



By fitting an electric fan (and getting rid of the old one) you save energy used by the engine and therefore it'll more efficient and economical. If you fit the right temperature switch to begin with then there's no need for an adjustable one. If your engine is running at the right temperature now then you don't need an auxiliary fan so do away with the mechanical one and go lekky. On tickover the mechanical fan is hardly doing any work and that is when you need the extra cooling, stuck in a traffic jam in the middle of summer (remember summer:I) that is when the electric version comes into it's own. There is enough forced draft air through the rad when you are on the move to keep things cool if everything is working OK. An electric one fitted behind the rad is more efficient but space is restricted (unless you move the rad forward) I know commerjules has installed one in front and it works a treat.
While your at it bung in a lekky water pump and save even more horses ;)

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quote:
By fitting an electric fan (and getting rid of the old one) you save energy used by the engine and therefore it'll more efficient and economical. If you fit the right temperature switch to begin with then there's no need for an adjustable one. If your engine is running at the right temperature now then you don't need an auxiliary fan so do away with the mechanical one and go lekky. On tickover the mechanical fan is hardly doing any work and that is when you need the extra cooling, stuck in a traffic jam in the middle of summer (remember summer) that is when the electric version comes into it's own. There is enough forced draft air through the rad when you are on the move to keep things cool if everything is working OK. An electric one fitted behind the rad is more efficient but space is restricted (unless you move the rad forward) I know commerjules has installed one in front and it works a treat.
While your at it bung in a lekky water pump and save even more horses


It's the not knowing what the right temperature sensor is in the first place that worries me! Suppose it should be 88-90 degrees. Someone told me that electric fans aren't as powerful as an engine driven fan even at idle speed - any truth in this? Doesn't sound right to me.
 
I think you are right to doubt it. When I sit in traffic in my 'modern' car, I can watch the temperature needle rise above 90 degrees, then hear the fan cut in and watch it gently drop down again. Similarly, if you have the engine idling and the bonnet up, you can feel the force of warm air from the fan. A word of warning though, if working on a running engine: Don't forget that the fan can cut in at any moment!

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'I intend to live forever - so far, so good'
 
Fan should cut in about 82-90*. whatever sensor you use, when it will cut in depends on where the sensor is fitted, so its only reading local water temp, not whats in the block/head,so its acedemic really. probably best to get the lower temp sensor. or have it on a manual switch.
All fans are different so how efficient it is depends on size,shape,speed,cowling,angle,amount of blades. pullers are always better than pushers though. its all trial and error. the Riley one works very well, the j4 overheated with a big puller [xx(] and Fontaine has both fans and still melts [:0]

"you were only supposed to blow the bloody SLIDING doors off"
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and Fontaine has both fans and still melts

It must be the driver....hopefully she is having a bit of work done to that throttle linkage - much like pankys this week with the correct bracket we've found. Hopefully it wont catch on the lid as much and fully close/fully open!

Jon&Cara-Gramarye Fontaine
 
I had a mad electrical type day today and sorted out lots of unfinished stuff - even found out why the horn was sounding when the indicator was operated:I. The Davies Craig was given a proper live supply instead of the wire tucked under the battery terminal:I and the overdrive was sorted. I don't know what I was doing when I first wired it up, it took me ages to trace all the wires I'd spliced in behind the dash - now the only wire from the OD to the dash goes to the warning light. The modified gear knob and switch actually work[^] Next up was the lekky fan, again I must had been having a bad day when I first put it in but now all done properly with the relay mounted along side the ones for the water pump and OD on the side of the engine bay - tucked up on top of the wheel arch out of the weather. I started fitting my Stebel Twin Nautilus air horns - there's just enough room in front the original horn behind the front valance - crikey its LOUD[:0]
I've been having trouble sealing the thermostat cover to the housing I made - it just won't have it. I had everything off and lapped the faces with griding paste on a pane of glass but still no joy - paper gasket no good - thin cork gasket and sealer just as bad. It's warping somehow and now I've managed to crack the cover, and my spare, in exactly the same place - I think I'll make one:I

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sounds like a very productive day you had there.........almost:)

can't wait to hear those LOUD horns going as you arrive at Martin's in July [8D]

I was thinking of getting Train horns and fitting the compressor where the water tank would be but Cazz did not approve.....can't think why[}:)]

''COMMER'EnSayThat''
 
I did indeed, I had both the housing and the cap on the lapping surface - I think I must have cracked both the caps before I honed them to a perfect optical finish :I

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