Replace head gasket on KV6 2.5l - Page 2

DMGRS · 21st December 2022, 15:54

Good luck with the diagnostic work - I've worked on many KV6s, and I've yet to see a single HGF case (despite being presented with at least 10 that were 'definitely head gasket mate').

I'd do a full compression test and go from there - if you're DIY-handy a decent compression tester is a handy thing to own, and they're not too expensive.

I am seeing a few cases of worn piston rings as the cars age - usually these are vehicles that have been laid up for a number of years, I'm guessing the rings have 'seized' into position on the grooves of the piston itself.

Ched · 21st December 2022, 18:17

I've had 2 190 lumps blow the head gasket, it's more common than the nay sayers would have you believe, centre cylinder front bank is the usual culprit.

nh627 · 23rd December 2022, 15:01

Just a quick update on the problem. Managed thanks to DMGRS to deliver a full set of coil packs and plugs(plus some other bits ) and Happy Days! One of the rear bank was cracked so the misfire has gone and no codes after a brisk trip down the dual carriageway. Now armed with fresh mot just need to attend to the cracked and leaking thermostat. Just goes to show there are some less than honourable garages out there so a code reader is a must.

Wish you all a very Merry Christmas and hope to meet you at a future event.

21st December 2022, 15:54	#11
DMGRS Discount MG Rover Spares Rover 75 CDTi, 2x MG ZS180 Join Date: Jun 2011 Location: Hythe, Southampton Posts: 11,321 Thanks: 456 Thanked 3,377 Times in 2,027 Posts	Good luck with the diagnostic work - I've worked on many KV6s, and I've yet to see a single HGF case (despite being presented with at least 10 that were 'definitely head gasket mate'). I'd do a full compression test and go from there - if you're DIY-handy a decent compression tester is a handy thing to own, and they're not too expensive. I am seeing a few cases of worn piston rings as the cars age - usually these are vehicles that have been laid up for a number of years, I'm guessing the rings have 'seized' into position on the grooves of the piston itself. __________________ Your trusted MG Rover specialist! Tel: 02380 001133 / Email: [email protected] We now have a 'chat' function on our site for even quicker replies. Give it a try! Remember - discount code FORUM5 for 5% off

21st December 2022, 18:17	#12
Ched I really should get out more....... MG ZT V8, MGZT 135 derv ,MG TF 135 Join Date: Dec 2011 Location: Romsey Posts: 2,294 Thanks: 553 Thanked 573 Times in 385 Posts	I've had 2 190 lumps blow the head gasket, it's more common than the nay sayers would have you believe, centre cylinder front bank is the usual culprit.

23rd December 2022, 15:01	#13
nh627 Regular poster Rover 75 Join Date: Jun 2022 Location: Chichester Posts: 31 Thanks: 0 Thanked 4 Times in 3 Posts	Just a quick update on the problem. Managed thanks to DMGRS to deliver a full set of coil packs and plugs(plus some other bits ) and Happy Days! One of the rear bank was cracked so the misfire has gone and no codes after a brisk trip down the dual carriageway. Now armed with fresh mot just need to attend to the cracked and leaking thermostat. Just goes to show there are some less than honourable garages out there so a code reader is a must. Wish you all a very Merry Christmas and hope to meet you at a future event.