Holed K series engine

johnnyb44 · 26th February 2016, 19:29

Hi
Whilst at my local garage today sorting out a replacement shot spring for my car I noticed a rather sad looking K series engine sitting next to an 04 plate freelander. I asked the mechanic had it been a victim of a overcooked head gasket failure. Surprisingly he said no. He said it had lost compression on cylinder 4 and when they cracked the head off they discovered a wacking big hole in the piston crown. I had a good look and sure enough I could fit my thumb through it. They decided to get a replacement engine for it as it was more cost effective. They had no idea why it failed in such a way either.

Southside · 26th February 2016, 21:49

I've replaced two k-series engines over the years with holed Pistons. Both were the result of serious overheating though. The one had got that got the inlet manifold had melted to the head as well.

rrobson · 27th February 2016, 06:29

It can happen if there's a restriction or no fuel getting to a cylinder. Could have been as simple as a blocked injector.

26th February 2016, 19:29	#1
johnnyb44 I really should get out more....... Rover 75 Join Date: Sep 2013 Location: north wales Posts: 2,721 Thanks: 1,774 Thanked 902 Times in 507 Posts	Holed K series engine Hi Whilst at my local garage today sorting out a replacement shot spring for my car I noticed a rather sad looking K series engine sitting next to an 04 plate freelander. I asked the mechanic had it been a victim of a overcooked head gasket failure. Surprisingly he said no. He said it had lost compression on cylinder 4 and when they cracked the head off they discovered a wacking big hole in the piston crown. I had a good look and sure enough I could fit my thumb through it. They decided to get a replacement engine for it as it was more cost effective. They had no idea why it failed in such a way either. __________________ Replaced pcv filter, springs, plenum spy hole mod,Bonnet cable divider mod. Wax oiled.Air con recharged. Auto box oil changed , Jules plenum guard fitted .Smoked wind deflectors fitted.S/S Compensator.Club Grill Badge kindly donated by Andyg2011..

27th February 2016, 06:29	#3
rrobson I really should get out more....... 75 tourer cdti, MG ZS 180, nissan terrano & 1.8t rover 25 Join Date: Feb 2010 Location: Pontefract Posts: 2,648 Thanks: 17 Thanked 295 Times in 218 Posts	It can happen if there's a restriction or no fuel getting to a cylinder. Could have been as simple as a blocked injector. __________________ How to view a car - everything you need to help you inspect a used car VIS motor tester avalible to local members Injector removal tool and auto gearbox pressure tester now available

26th February 2016, 21:49	#2
Southside Gets stuck in MG ZT Join Date: Dec 2007 Location: Tamworth Posts: 907 Thanks: 2 Thanked 75 Times in 43 Posts	I've replaced two k-series engines over the years with holed Pistons. Both were the result of serious overheating though. The one had got that got the inlet manifold had melted to the head as well.