Recent content by onebounce

Thanks, on Rimmer site now....

Just got them back, lovely job. Lightly skimmed, valves and seats re-cut, new guides fitted. <GBP500

Hi I've had the heads done (L322 4.2 SC, burnt out exhaust valve) but noticed the timing chains looked fairly stretched (180k miles) and wondered if I should change them ? If so, how did you get on with sourcing them... cost etc ?

Any tips re timing chains and guide replacement ? I’ll be doing the same once I get the heads back (burnt out ex valve, skimmed and new guides)

Top tip re Classic and Modern Engine Services in Bracknell - dropped the heads off for them to skim and review the exhaust valves, thanks

Have to say I only changed one, not both, no noticeable effect on handling… Did expand my vocabulary though when I was changing it…

Sorry, don’t know about removing the sump, I’m not touching the pistons, just the heads off. Are you doing the timing chains also ?

Hi all I’m just getting the heads lightly skimmed and a dodgy exhaust valve or two replaced and will be putting it all back together next month. Does anybody have the Engine Timing Kit for this engine that they would be willing to loan or sell ? I know it’s only about £40, but on top of the...

Think I found it on the Jaguar site… for an AJV8 4.2 litre, but not SC, but assuming its the same…

Pulled the first exhaust valve, not from a cylinder showing any compression related problems… After a brief lapping, seat looks okay and valve, although pitted, not too bad. Will push on and pull the rest…

Interesting, thanks I haven’t looked at this option yet, wondered if you had an idea of the cost to refurb the heads ? I’m expecting to also need a cyl head gasket and bolt kit, timing chain kit and engine timing tools.

Thanks, good point. My worry is that these heads have done nearly 200k miles, 150k of which on lpg, so might be better to replace with a set of ‘petrol only’ heads ? Which might be less subject to vsr. Also thinking that the broken valve might have damaged the valve seat. Maybe next step is...

Thanks - will give them a call.

Spoke to an engine shop a while back and they had a pic or two of similar, not Rangie, but similar Valve failure. Question is, rebuild or replace with s/h heads (if I can find any !)