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Post by Les on Jul 25, 2013 17:25:30 GMT
 Well Im praying someone has an idea cause Im out of them, The Majestic has a water leak, its around the top of the engine and leaks over the exhausts. Ive checked every pipe and connection I can find and cannot find a leak. Ive run her up to hot and squeszed pipes to no avail, gave it a dammed good torching and no sign, but I am deffo loosing water. It can run for days with no problems, then as happened Tuesday, rode a couple of miles to the petrol station, stopped to fill up, and a small cloud of steam arises from the front of the engine. Its weird, sunday I rode it fifty plus miles at making progress speeds, and no problems. Me Im going  trying to sort this.
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Post by lightspeed on Jul 26, 2013 2:48:09 GMT
Might it be a pin hole leak in the radiator?
Has happened to others.
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Post by Burchy on Jul 26, 2013 12:01:21 GMT
Thats what I reckon as well
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Post by firmhand on Jul 27, 2013 7:20:15 GMT
Yea but if it was wouldn't she do it all the time, these sort of things are a pig to lock down and if i recall correctly the rads fairly new on this bike as it poped two years ago on the North and South meet.
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Post by Les on Jul 27, 2013 7:42:17 GMT
Dont think its the rad as there is no sign of a leak on it, as Pete says its fairley new and still is in very good condition so water leak on the rad would (should) be visible. It appears to be comming from the top of the engine area, when it does leak. Im moving towards a thermostat problem, although there is no indication of temp variations  before, during or after it dumps water. |
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Post by firmhand on Jul 27, 2013 8:16:55 GMT
Stripe had a screw on his thermostat corrode which caused a tiny leak on an endurance ride, cost him his engine as he lost all his water over the cause of the event (no warning lights as his system was dry). I would also check the fan whilst i was on (short it with a piece of wire) just in case its not working and the engine is boiling up or something and causing a leak at high temps, no expert Les as you know mate but worth a look.
Pete
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Post by firmhand on Jul 27, 2013 8:40:25 GMT
Thinking about it you have an S so a propper temp gauge, R just has a warning light when she starts to boil up, mind you so did Stripe.
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Post by lightspeed on Jul 27, 2013 16:12:12 GMT
I think most leaks (including a rad leak) would not appear until after the engine had warmed up and the pressure had built up in the cooling system.
Sometimes the pin hole rad leaks are on the back of the rad and if it happened in the top row, the leak would wet the top of the engine.
Think you'll have to pull some bodywork and start checking hoses, gaskets and fasteners for a start.
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Post by Burchy on Jul 27, 2013 19:18:19 GMT
You should start to see some witness marks when the fluid boils away, Something like a white stain. When my rad holed it was at the top on the inside . When the water level in the system dropped to jyust below the hole it didn't lose anymore coolant. Admittedly the system didn't pressurise correctly but it didn't boil over and didn't cause any further problems.
When I first found it I was toppinbg up every 50 miles. I gradually discovered that I could extend this a bit every time and ended up riding a day into Santander and then all the way home from Plymouth without topping up. I was about ½ pint down and it never got worse than that
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Post by brakeline on Jul 27, 2013 20:51:44 GMT
Try replacing the rad cap, was happening to me and a new rad cap and reservoir cap sorted it.
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Post by Les on Jul 28, 2013 14:10:39 GMT
 well been searching high and low and finally removed the rad to investigate behind it, fan and front upper front of engine showing signs of leakage, so its gotta be the rad. Anyway rad now stripped and ready to go in for repair tommorow, its amazing just how neat the rex looks with the rad removed, much more agressive especially with the stainless exhaust.
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Post by lightspeed on Jul 29, 2013 2:06:14 GMT
Toad Ja . . .  Glad you found the leak and it is fixable.  |
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Post by Les on Jul 31, 2013 10:50:54 GMT
 well it aint fixable evidently :-/so now have three options, New radiator from Mr K at £547.00 + Vat New Rad from Delvic £159.95 + 5.95 p&p New Rad from China £88 all inclusive can you guess which option I choose.
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Post by Burchy on Jul 31, 2013 11:33:00 GMT
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Post by firmhand on Jul 31, 2013 17:52:53 GMT
Don't bother with the Delvic Les, plenty of complaints from next door, don't fit, don't last and well Chinese speaks for it self really.... How long/miles did you get out of yours Burchy?
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