valve oil seals?

Garth84x · Post by **Garth84x** » Fri Apr 25, 2008 7:06 pm

problem !

took the heads off my 3.5 rv8 to inspect all the components, while i was at it i thought it might be a idea to give the heads a bit of a rebuild.

took the heads into work and one of the techies took the valves out for inpection, then decides that he dosn't know much about the rv8 (horray)

so i bought a head set and am wondering how to put new valve stem oils seals in. thinks iv'e found em in the head set, about the size of a 1p piece made of a rubber sort of stuff. what else needs to be put where please, and also is the rv8 (mine is from a early range rover) ok for unleaded?

cheers

garry

ChrisJC · Post by **ChrisJC** » Fri Apr 25, 2008 8:38 pm

The rubber washer type oil seals just need to be put over the valve stem after sliding the valve through the guide. Inertia keeps it down on the top of the guide.

Personally I have changed all my guides for the later type with the more usual (i.e. modern!) neoprene type seals. Supposely you can get existing guides machined, although I don't know where / who would do that.

Chris.

mgbv8 · Post by **mgbv8** » Fri Apr 25, 2008 9:11 pm

Real Steel machined my valve guide tops for the later seals when they were tarting my heads up last year. Didnt cost a fortune either.

Garth84x · Post by **Garth84x** » Sat Apr 26, 2008 10:45 pm

sorry for sounding a complete turnip.. but what are the valve guides, the bit that the valve goes through the head?

garry

kiwicar · Post by **kiwicar** » Sun Apr 27, 2008 6:32 am

Yes the bit the Valve gos through.
Mike

Garth84x · Post by **Garth84x** » Sun Apr 27, 2008 6:52 pm

decided to go for a few new bits, but i can't find where to get 'em from.

i need set of valves and the guides for a early rv8, also the rockers are shot so some new ones would be good.

anyone got any links where i can get me bits?

garry

mgbv8 · Post by **mgbv8** » Sun Apr 27, 2008 8:06 pm

Where are you based Garry?
I've got some tidy early V8 heads in the garage for not much money.

Garth84x · Post by **Garth84x** » Sun Apr 27, 2008 9:39 pm

im in southampton bud

ChrisJC · Post by **ChrisJC** » Wed Apr 30, 2008 7:31 pm

Check forum sponsors first, then hit eBay, Rimmer Bros or any of the Land Rover places like Paddock Motors.

Chris.

ian.stewart · Post by **ian.stewart** » Wed Apr 30, 2008 7:42 pm

Just opend up my head set to rebuild, they have given me the wrong set, got rubber washers rathen the push on type,
Anyone got any idea for a x refference

Garth84x · Post by **Garth84x** » Fri May 09, 2008 6:00 pm

so just to clarify, the seals go over the valves after they have gone through the guides, so they are held in by the springs.

i only ask because there were no traces of the old seals on any of the valves on either head ?

garry

desertrover · Post by **desertrover** » Tue May 13, 2008 3:22 pm

Is it a good idea to use old-style seals on later heads?
I ask because I´ve got late heads, but these just have "room" for a max valve lift of 11.4mm with the neoprene seals.
The cam I intend to use is the piper 270 with 11.3 mm of lift.
That´s very close.
I know that it´s possible to short the valve guides, but as I´m from Germany, where the RV8 isn´t that popular, it´s not easy to find a company to do that job with experience with the RV8.

Garth84x · Post by **Garth84x** » Sat May 17, 2008 3:26 pm

do the valve oil seals only go on one valve of the two? i.e exhaust or inlet as my head set onlt has eight seals in it?

garry

kiwicar · Post by **kiwicar** » Sat May 17, 2008 5:17 pm

Inlet valves, they are the ones that see vacuum.
Mike

Garth84x · Post by **Garth84x** » Sat May 17, 2008 10:53 pm

Cherrs kiwi

Garry