[ROVERNET - UK] De-coking a rover V8
kkinard at swbell.net
Mon Feb 6 06:42:17 GMT 2006
I don't know if the product is available in Oz, but I have used
non-toxic oven cleaner (Easy Off blue). May take several applications.
I used to swear by the composite gaskets, but I think proper use of 10
studs per side (rather than 14 bolts) makes even the steel gaskets work
quite well. If your heads are held by all 14 bolts, the heads are
actually tilting on the block promoting leakage. Des Hammil actually
reccommends specially ground studs that bottom "on center" in the block.
Just one of many good tips in his book on the Rover V8. If you need to
lower compression a little, use composition head gaskets. Buy new
valves. What year is the engine?
Gavin.Walker at csiro.au wrote:
> Last year a stuck inlet valve bent a pushrod 45deg. I have finally
> taken the heads off. All the valves appear straight. One valve guide
> on the other head has dropped and cracked but the valve seems ok. Some
> of the exhaust valves are a little stiff in the last few mm of movement
> but I expect that'll disappear when I clean them up.
> The carbon is really thick on both the heads and the pistons. What the
> best way of cleaning this up?
> The head gaskets show signs of cylinder leakage between the cylinders
> and into the valley. Heads and block, however, are flat within 0.05mm.
> Don't know what's going on there.
> Gavin Walker
> Canberra, Australia
> rovernet mailing list
> rovernet at lyris.ccdata.com
> To unsubscribe, go to this web page, look near the bottom and follow instructions:
> Back-up list and photos at:
More information about the rovernet