gavingraysonr300 Posted January 17, 2016 Author Share Posted January 17, 2016 Thanks for advise i am going to drill the thermostat but i have no heater what do you think about me making this temporary bleed tee that i explained in my post. Taking the bypass hose off the rail putting a temporary tee piece in and a piece of hose to the rail then fill slowly once im full put thumbs over ends of rail and hose then quickly reconnect. I know its probably just as easy to leave a tee piece in but dont plan on draining it much after this. Link to comment Share on other sites More sharing options...
revilla Posted January 17, 2016 Share Posted January 17, 2016 I don't see any need ... if you have a bleed tee at the highest point up near the heater just followed a tried and tested method.This is a very common problem that all K Series Caterhams suffer from and there are well-established fixes. Link to comment Share on other sites More sharing options...
gavingraysonr300 Posted January 17, 2016 Author Share Posted January 17, 2016 Ive no heater so its no the highest point unless i can prop the hose higher Link to comment Share on other sites More sharing options...
revilla Posted January 17, 2016 Share Posted January 17, 2016 With no heater, yes you just need the bleed tee in the bypass hose that runs from the back of the metal coolant rail round to the thermostat. Position it such that it can be lifter up to be the highest point. There's no need to prop it up as you will use this as the filler, so hold it up with one hand whilst pouring coolant in slowly with a jug in the other.The heater is one of the favourite places for air to get trapped, so without a heater the process should be even easier. Link to comment Share on other sites More sharing options...
Mankee Posted January 17, 2016 Share Posted January 17, 2016 Is your fan working? Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted January 17, 2016 Member Share Posted January 17, 2016 Good point. I thought I'd said that last night but obviously didn't.Check: Temperature at which it cuts in The air is being blown the right way.Jonathan Link to comment Share on other sites More sharing options...
gavingraysonr300 Posted January 17, 2016 Author Share Posted January 17, 2016 Fan is working when thermostat decides to open Link to comment Share on other sites More sharing options...
gavingraysonr300 Posted January 17, 2016 Author Share Posted January 17, 2016 Ok thanks do you know if i can split the thermostat housing in position or do i have to take the whole thing off and replace o ring ? When it is split into two what seals it back up is it a rubber on the thermostat or is it another o ring. The only reason why im asking if i can do it in position it was a real pig to get the bypass hose on as pipe for dry sump is right next to it and roller barrells. Link to comment Share on other sites More sharing options...
Mankee Posted January 17, 2016 Share Posted January 17, 2016 If you can access the three bolts holding the two halves of the stat housing together, you will be able to split it in situ. And then the stat has a rubber sealing ring. Link to comment Share on other sites More sharing options...
Mankee Posted January 17, 2016 Share Posted January 17, 2016 The part numbers for the stat and housing are shown on this page:http://www.rimmerbros.co.uk/Item--i-GRID000098You only really need the one housing seal going into the block, as we have a rubber/silicone shoved onto the other end. Link to comment Share on other sites More sharing options...
SM25T Posted January 17, 2016 Share Posted January 17, 2016 ... hose .... Link to comment Share on other sites More sharing options...
gavingraysonr300 Posted January 17, 2016 Author Share Posted January 17, 2016 Thanks everyone for support will order bits and let you know what happens. Link to comment Share on other sites More sharing options...
gavingraysonr300 Posted January 20, 2016 Author Share Posted January 20, 2016 Hi i took delivery today of my new thermostat which has already been drilled with a pin through it. Have they started drilling them now and do i just need to break out the pin ? Ive sent a picture thanks.file:///Users/gavgrayson/Desktop/Photos%20Library.photoslibrary/Thumbnails/2016/01/20/20160120-195646/fbAeSMNdQbmBZWnd869O7A/thumb_IMG_1049_1024.jpg Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted January 20, 2016 Member Share Posted January 20, 2016 That URL doesn't work for me...Jonathan Link to comment Share on other sites More sharing options...
gavingraysonr300 Posted February 8, 2016 Author Share Posted February 8, 2016 Hi everyone who gave me advise on my overheating after changing my water pump and hoses. I drilled the stat put it back together and it still overheated so stat not opening still. Jacked up the front end still nothing looking at the stat hosing decided to jack the back end up and really masarged big pipe coming off the stat housing got some bubbles and is running back as normal now great. Im just a bit worried about all the overheating will it have damaged the engine did turn it off as soon as it started but i know the k engine dosnt like overheating. What will be the tell tale signs and would it be straight away if there was damage it is running fine but only had short runs so far. Link to comment Share on other sites More sharing options...
revilla Posted February 8, 2016 Share Posted February 8, 2016 Glad to hear it is working again. Hopefully if it didn't get too hot and you didn't let it carry on running like that for any length of time it will be fine. The metal alloy used for the block and head is quite soft as cast, but is then heat treated to leave it in a much harder state. This heat treatment is however reversible and the hotter it gets, the faster it anneals back to its soft state. So extended periods at excessive temperatures will leave the metal soft and the steel liners can then either sink into their seats in the block or bite into the head. The usual sign will be a head gasket failure and either sunken liners or an indented head found on stripping it down. I should think in your case though, as you kept an eye on it and shut it down when it started getting hot, you should be OK. Link to comment Share on other sites More sharing options...
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