Hi all,
I have a 54 plate leon 1.6 16v, I shattered an idler tensioner and bent all eight of my exhaust valves, before hand the car ran perfectly I stripped the head off had it crack tested and skimmed and replaced the valves. After I started the car for the first time it was smoking like a steam train, I took it apart again and and replaced all of the valve stem seals, ran it again and still smoking also it was melting spark plugs causing a misfire, and when I say smoking I mean the entirety of its oil in 3 days ! I checked all of the breathers and checking for crank pressure, all cylinders are producing 240 psi of compression and I've done a test with wd40 on top of the pistons and it sits there with no movement, there is slightly more play in the exhaust valve guides (the side that the valves bent) than the inlet side, but no cracks! I've now been told that These have nikasil coated cylinders and they can go, and that my problem is bottom end ? After spending 500 squid already I don't want to throw any more money at it, any advice would be appriciated on what the problem could be ( I thought It could only now be valve guides) and am considering doing an engine swap , I believe my engine code is BCB but is there any other engines I can put in and do I have to alter any ecu maps etc. whatever happens it's going when it's fixed , i just want a cupra now lol.
Many thanks in advance
Dan
I have a 54 plate leon 1.6 16v, I shattered an idler tensioner and bent all eight of my exhaust valves, before hand the car ran perfectly I stripped the head off had it crack tested and skimmed and replaced the valves. After I started the car for the first time it was smoking like a steam train, I took it apart again and and replaced all of the valve stem seals, ran it again and still smoking also it was melting spark plugs causing a misfire, and when I say smoking I mean the entirety of its oil in 3 days ! I checked all of the breathers and checking for crank pressure, all cylinders are producing 240 psi of compression and I've done a test with wd40 on top of the pistons and it sits there with no movement, there is slightly more play in the exhaust valve guides (the side that the valves bent) than the inlet side, but no cracks! I've now been told that These have nikasil coated cylinders and they can go, and that my problem is bottom end ? After spending 500 squid already I don't want to throw any more money at it, any advice would be appriciated on what the problem could be ( I thought It could only now be valve guides) and am considering doing an engine swap , I believe my engine code is BCB but is there any other engines I can put in and do I have to alter any ecu maps etc. whatever happens it's going when it's fixed , i just want a cupra now lol.
Many thanks in advance
Dan
