Bickerton Posted March 22, 2011 Author Report Share Posted March 22, 2011 sorry to hear about your troubles mate.out of interest how many miles had it done since the last belt change?40kYou can probably get hold of a second hand engine with ecu and box for around £400 maximum.Drop that in and you're back up and running.Have looked into that but not managed to find any as of yet other than overpriced ones on ebay by stevens or the place in coventry.Was a lad breaking a sport, but dunno if that'd be a ballache to drop in or is it plug and play? Quote Link to comment Share on other sites More sharing options...
chris c Posted March 22, 2011 Report Share Posted March 22, 2011 i fitted a sport in my lupo s was a brilliant engine to match wih the gearbox and the bolt heads are usually called e-drives Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 22, 2011 Author Report Share Posted March 22, 2011 Could you pm me what you needed and did for this please as may be another avenue to explore. Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 27, 2011 Author Report Share Posted March 27, 2011 (edited) Took the head off, upon inspection it seems that only two valves are bent, oddly though, they are inlet ones which i really don't understand how that happened?Anything you notice in these pics is appreciated Edited March 27, 2011 by Bickerton Quote Link to comment Share on other sites More sharing options...
chris c Posted March 27, 2011 Report Share Posted March 27, 2011 looks like you might get away with it turn the engine over a couple of times to make sure rods pistons ect are ok as a precausion Quote Link to comment Share on other sites More sharing options...
Reed Posted March 27, 2011 Report Share Posted March 27, 2011 When my waterpump bearing failed and the belt jumped a tooth, I bent all 8 inlet valvesAs above, looks like you may have got away with just the 2, I'd replace them, clean it all up and see if it'll turn overGood luck mate Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 27, 2011 Author Report Share Posted March 27, 2011 i still dont understand how its the inlet valves though as the inlet cam belt was still connected so shouldn't have been an issue?Unless there's more than meets the eye with the initial belt snapping Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 27, 2011 Author Report Share Posted March 27, 2011 (edited) Short vidhttp://static.photobucket.com/player.swf?file=http://vid130.photobucket.com/albums/p278/taximan19/VIDEO0011.mp4 Edited March 27, 2011 by Bickerton Quote Link to comment Share on other sites More sharing options...
chris c Posted March 27, 2011 Report Share Posted March 27, 2011 id buy a set of valves just incase and give it a good rebuild then atleast you know it will be good for years reed you obviously did it propely Quote Link to comment Share on other sites More sharing options...
Mitchell Posted March 28, 2011 Report Share Posted March 28, 2011 put the head on its side pour petrol down inlet tracts and look for seepage past valve seat's, same exhaust side, if you have major seepage the valve will have damage, chances are you may of jumped teeth on the inlet side Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 28, 2011 Author Report Share Posted March 28, 2011 put the head on its side pour petrol down inlet tracts and look for seepage past valve seat's, same exhaust side, if you have major seepage the valve will have damage, chances are you may of jumped teeth on the inlet sideIs that something to do aswell as take the valves out or to work out what ones need removing as I'm looking at redoing the stem seals while the heads off anyways Quote Link to comment Share on other sites More sharing options...
Mitchell Posted March 28, 2011 Report Share Posted March 28, 2011 just renew the lot for a safe bet, remember to lap them in Quote Link to comment Share on other sites More sharing options...
Cooper_GTI Posted March 28, 2011 Report Share Posted March 28, 2011 You may aswell put new stem seals in all of them while your there mate.Best to invest in a half decent valve spring compresser too!A few blue peter top tips that i've picked up over the years when building heads:Get a piece of cardboard and punch 16 holes in it, with each hole numbered, corresponding to the head to ensure the valves go back in the same holes they came out of.When lapping in the valves only use Chemico grinding paste. I found the others to be a lot less effective.When grinding valves, rub the tube in your hand several times, then lift the valve up, rotate it 90 degrees and do it again. Dont just keep grinding it in the same position.Grind the valves until all the tiny black dots on the valve face have dissapeared.Use vaseline (or other grease) to stick the collets to your pliers to save you dropping them everytime you try to place them in. Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 28, 2011 Author Report Share Posted March 28, 2011 InletExhaustLooks like i may have got off very very lightly..Will defo use the vaseline tip Quote Link to comment Share on other sites More sharing options...
Cooper_GTI Posted March 28, 2011 Report Share Posted March 28, 2011 Fair play.Bang 2 new valves in and off you go! Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 28, 2011 Author Report Share Posted March 28, 2011 Gonna order the lot later from ECP as they got a 20% code at the mo and hopefully it'll all be here for my day off wednesday.Then just a case of putting it all back together and not have any spare bolts left over I assume headbolts are stretch bolts so need binning?Also any tips on how to clean up the head? Quote Link to comment Share on other sites More sharing options...
Cooper_GTI Posted March 28, 2011 Report Share Posted March 28, 2011 Yes, you'll need new head bolts. You might find that they come with the head gasket kit.With regards to cleaning the head, i use petrol to break down the grime and i put a wire brush in a drill to polish it up. This also works for cleaning up the valves.Failing that you can use a dremel, or failing that, good old fashioned wet n' dry! Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 28, 2011 Author Report Share Posted March 28, 2011 So wire brush on a drill is fine for the valve heads, won't it scratch em? Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 28, 2011 Author Report Share Posted March 28, 2011 (edited) Mate of mine is getting overexcited that i don't intend on replacing the guides (have tested a straight valve in bent ones and all seems fine) and that i am gonna use a grinding stick, you see any issues with this?Also, should i be concerned that it's the inlet valves that managed to get damaged and that the belt was shredded like this Edited March 28, 2011 by Bickerton Quote Link to comment Share on other sites More sharing options...
99hjhm Posted March 28, 2011 Report Share Posted March 28, 2011 Strip the head, wash it with petrol, you wont damage the valves with much, a wire brush on a drill will work OK as said above. You don't want the head face polished, I would get some 120 grit paper on a flat block, wet with WD40 and lightly 'sands the head in a figure of eight motion, carefull not to create low spots.Lap them in using the stick and grinding paste, wash again with petrol. Well worth changing the stem seals, and yes the bolts will need replacing. Looking at all the bent inlet valves, either a tensioner has failed, or belt has jumped due to the small belt getting stuck underneath it. Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 28, 2011 Author Report Share Posted March 28, 2011 i was able to remove the main belt without touching any tensioners, was tights but nothing excessive , I assume this shouldn't be possible Quote Link to comment Share on other sites More sharing options...
99hjhm Posted March 28, 2011 Report Share Posted March 28, 2011 (edited) i was able to remove the main belt without touching any tensioners, was tights but nothing excessive , I assume this shouldn't be possibleIt's usally the platic outer section that falls off the tensioner. Your fitting a complete cambelt kit yes? Edited March 28, 2011 by 99hjhm Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 28, 2011 Author Report Share Posted March 28, 2011 yep, fitting full kit and water pump Quote Link to comment Share on other sites More sharing options...
Bickerton Posted March 29, 2011 Author Report Share Posted March 29, 2011 Just got back from having the head vac tested, only failed on the two inlet valves (phew?)Have been quoted £140.60 for two valves, cleaning and rebuliding my head, head set (bolts, all gaskets including manifold, stem seals)Happy with that if i'm honest as was looking at close to that for parts alone diy styleShould also have it back tomorrow Quote Link to comment Share on other sites More sharing options...
RobG Posted March 29, 2011 Report Share Posted March 29, 2011 Should also have it back tomorrow *like* Quote Link to comment Share on other sites More sharing options...
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