Whytie2697 Posted April 28, 2013 Report Share Posted April 28, 2013 I am trying to remove the egr valve from a 300tdi discovery but can't get the Allen bolts to loosen at all any tips tried wd40 and a ratchet Allen key but it just flexes and doesn't turn at all want to avoid snapping the bolts any ideas Quote Link to comment Share on other sites More sharing options...
aga man Posted April 28, 2013 Report Share Posted April 28, 2013 if there not near anything that can melt/burn. try putting some heat on them with a blowtorch or something similar. Quote Link to comment Share on other sites More sharing options...
Whytie2697 Posted April 28, 2013 Author Report Share Posted April 28, 2013 I was thinking I that away to a family clay shoot in an hour so will try that through the week or next weekend cheers Quote Link to comment Share on other sites More sharing options...
Paul223 Posted April 28, 2013 Report Share Posted April 28, 2013 I am trying to remove the egr valve from a 300tdi discovery but can't get the Allen bolts to loosen at all any tips tried wd40 and a ratchet Allen key but it just flexes and doesn't turn at all want to avoid snapping the bolts any ideas which type do you have, some have two allen bolts onto the exhaust manifold and a further two bolts on a flange into the inlet pipe, just as easy to blank it at the inlet pipe where the bolts undo easy to undo the allen bolts on the manifold first try giving them a shrap knock square on with a hammer,if that fails then go for heat, tool wise best to use an allen socket on an extension bar rather than a traditional L shaped allen key Quote Link to comment Share on other sites More sharing options...
Cosd Posted April 28, 2013 Report Share Posted April 28, 2013 Which ones are you having problems with? If its the manifold ones I left mine well alone as I didn't want to risk snapping them, so I blanked mine off after the heat exchanger. The valve side came off pretty easily using a ratchet. Quote Link to comment Share on other sites More sharing options...
walshie Posted April 28, 2013 Report Share Posted April 28, 2013 I tried everything to get mine off then a mate came round with a decent quality set of hex bits on a decent quality socket set and it came off in seconds. Quote Link to comment Share on other sites More sharing options...
delburt0 Posted April 28, 2013 Report Share Posted April 28, 2013 Warm em up Quote Link to comment Share on other sites More sharing options...
Whytie2697 Posted April 28, 2013 Author Report Share Posted April 28, 2013 Mine are the two Allen bolts on the manifold and then a bit further along the pipe I have the valve with like another bit same shape as the blanking plate with 2 I think 10mm bolts holding it I have managed to loosen these with a ratchet is it ok to just blank it off there if I can't get the Allen bolts undone will try with heat etc then if still no joy will blank it off further along the pipe Quote Link to comment Share on other sites More sharing options...
NIGHT SEARCHER Posted April 28, 2013 Report Share Posted April 28, 2013 A Impact Driver will loosen any rusted screws or bolts in a jiffy. Brilliant tool. Machine Mart do two of them one at £10 and one at £15 more bits with it. It`s a tool you should only buy once unless you lend it to a mate that never brings it back. And i can`t remember who the hell borrowed it. This is my third one and I don`t lend tools out anymore. Quote Link to comment Share on other sites More sharing options...
Whytie2697 Posted April 28, 2013 Author Report Share Posted April 28, 2013 impact driver sounds like an option will be handy to have one as no doubt it will be needed more than once dont have a machine mart nearby but i am sure i will find one somewhere will start having a look cheers Quote Link to comment Share on other sites More sharing options...
russian sniper Posted April 28, 2013 Report Share Posted April 28, 2013 Take it for a good spin so the manifold is HOT then try and loosen em Quote Link to comment Share on other sites More sharing options...
NIGHT SEARCHER Posted April 28, 2013 Report Share Posted April 28, 2013 Impact Drivers on Ebay. New £7.65 free P&P upwards. Quote Link to comment Share on other sites More sharing options...
Whytie2697 Posted April 28, 2013 Author Report Share Posted April 28, 2013 cheers for the replies everyone will hopefully get a chance to try it through the week got mot retest tommorrow so will wait until that is out the way first Quote Link to comment Share on other sites More sharing options...
rabbiter Posted April 28, 2013 Report Share Posted April 28, 2013 Take it for a good spin so the manifold is HOT then try and loosen em thats the way i did mine,came off no problem...............DAZ Quote Link to comment Share on other sites More sharing options...
mick miller Posted April 29, 2013 Report Share Posted April 29, 2013 Kroil loosened mine. Took a couple of days of dripping it on but then they came out a treat. Well, okay, they came out with a minimum of brute force. Quote Link to comment Share on other sites More sharing options...
Gordon R Posted April 29, 2013 Report Share Posted April 29, 2013 What area are you in? If you are in North West, I have more Allen sockets than you can point a stick at. More than welcome to use. Quote Link to comment Share on other sites More sharing options...
Whytie2697 Posted April 30, 2013 Author Report Share Posted April 30, 2013 Thanks for the offer Gordon I am up in north Scotland about 20 miles from inverness Quote Link to comment Share on other sites More sharing options...
al4x Posted April 30, 2013 Report Share Posted April 30, 2013 impact driver sounds like an option will be handy to have one as no doubt it will be needed more than once dont have a machine mart nearby but i am sure i will find one somewhere will start having a look cheers correct me if I'm wrong as I don't know the tdi but with the manifolds being cast and bolted to the head the last thing I would do would start hitting an impact driver with a hammer against it. Some places they are ideal but onto cast I'm not so sure its a good idea Quote Link to comment Share on other sites More sharing options...
walshie Posted April 30, 2013 Report Share Posted April 30, 2013 correct me if I'm wrong as I don't know the tdi but with the manifolds being cast and bolted to the head the last thing I would do would start hitting an impact driver with a hammer against it. Some places they are ideal but onto cast I'm not so sure its a good idea Agreed. I wouldn't fancy using an impact driver on it, especially an allen bolt as rounding it off would be too easy. Quote Link to comment Share on other sites More sharing options...
NIGHT SEARCHER Posted April 30, 2013 Report Share Posted April 30, 2013 (edited) I am not saying hit the impact driver with a 2 lb lump hammer. Use a rubber mallet to give it a slight shock and twist to free it. The casting is plenty strong enough to stand a light shock. Using some heat from a blow lamp wouldn`t go a miss. And putting some penetrating fluid on them for a few days will help. If you have access to a 1/2 drive Air gun or 3/8 drive gun would be ideal. Edited April 30, 2013 by NIGHT SEARCHER Quote Link to comment Share on other sites More sharing options...
Whytie2697 Posted April 30, 2013 Author Report Share Posted April 30, 2013 An update after soaking the Allen bolts for a couple of days I still couldn't get them loose so I unbolted the solid pipe after the egr valve and out the blanking plate on there as cosd suggested sounded smoother on tick over once done but that might just be in my mind Quote Link to comment Share on other sites More sharing options...
Paul223 Posted April 30, 2013 Report Share Posted April 30, 2013 twas easy Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.