DVA liners Question?

[Russ H]

Anyone had their head reworked and NOT neaded the liners reset?

On my 6k k Series what would I expect or doesn't mileage matter?

Russ.

[Esprit]

My liners were all ok after 23k miles from a height point of view. I had to replace them because they'd ovaled (VHPD).

[LRGS2]

My liners have been low since manufacture and gave problems with multiple head gasket failures! DVA recommend 4-5 though clearance above block face. DVA also has special longer liners if your current liners are less than this recommendation. Liner height should not change with engine age unless you have a soft cast block? Liner heights should be consistent over all four. Hope this helps!

[kevin ritson]

Yep - lots of them came out of the factory at the wrong height(s). Depending on what they are, Dave can linish the block, fit new liners or if they're very slightly under, use an elastomer gasket to make up the difference.

[bogie]

the variability in manufacture is one of the points to address on the K series ...and what DVA does as routine business

...at least you havnt got a porous head or such like too

[JTBUSH]

bogie said:

the variability in manufacture is one of the points to address on the K series ...and what DVA does as routine business

...at least you havnt got a porous head or such like too

Think Id prefer a porous head.

[bogie]

JTBUSH said:

bogie said:

the variability in manufacture is one of the points to address on the K series ...and what DVA does as routine business

...at least you havnt got a porous head or such like too

Think Id prefer a porous head.

yes, less hassle to sort than height issues LOL

[JTBUSH]

Someone shouldve properly screwed Rover for the low liner issue.

Edited by JTBUSH on Friday 9th October 14:45

[Russ H]

So it seems likely that any head work will usualy need the liners sorting.

Now what engines were common for having aero heads? Just the standard ones,
VVC or both and what years of manufacture?

Russ.

[JTBUSH]

Not 100% on this but think there may have been a particularly bad period re liners.

[bogie]

Russ H said:

So it seems likely that any head work will usualy need the liners sorting.

Now what engines were common for having aero heads? Just the standard ones,
VVC or both and what years of manufacture?

Russ.

I think its like a TVR speed 6 style lottery LOL ...although the S2 135rs had a high percentage of failure considering the numbers produced....

[TIPPER]

My understaing is that things worsened on newer cars (casting quality went down as Rover neared its demise).
As bogie says, there also seemed to be a problem with the batch of heads used in the 135R.

[RonnieP]

Sinkage, heat/cool aluminium and its properties diminish/change and the old iron liners gradually sink into it and surprise, surprise, tolerances change. Shame that a bit of basic O level chemistry eluded the chaps at Longbridge.