Mud-club

Vehicle & Technical => Range Rover => Topic started by: baileys_1984 on October 26, 2006, 19:06:48

Title: Head gaskets
Post by: baileys_1984 on October 26, 2006, 19:06:48: whats involved easy/hard how long it take how to do
last one i ever did was on a ford pinto
Title: Re: Head gaskets
Post by: hairyasswelder on October 26, 2006, 19:44:19: Quote from: "baileys_1984"
last one i ever did was on a ford pinto

Eaiser than a pinto, just doing it twice.
Its only like two siamesed OHV engines, no belt or valve timing involved in head gasket job
Title: Head gaskets
Post by: Range Rover Blues on October 27, 2006, 16:41:16: Depending on engine, one is easy and the other harder as it's got the alternator bracket bolted to it, this little detail accounts for an extra few hours in my experience as the older the car gets the more problems dismantling it entails.

Good new is you can't screw up the timing.

Check your heads don't need skimming though, or skim them anyway and fit composite gaskets. The later heads had smaller combustion chambers to acount for the gasket thickness which is 0.5mm tin and 1.2mm composite.

You can tell it it's been skimmed already because there is a small hole drilled in the front face of the RH head, on a small sqaure sticky out bit. If it's closer to the bottom face than the side it's been skimed.
Title: contact
Post by: way2deep on October 27, 2006, 21:15:23: u got pm :D
Title: Head gaskets
Post by: Range Rover Blues on October 27, 2006, 23:17:44: I have? :shock:
Title: Head gaskets
Post by: baileys_1984 on October 27, 2006, 23:19:47: i think he meant me :lol:
Title: Head gaskets
Post by: Range Rover Blues on October 27, 2006, 23:34:26: Sorry, it must be the medicine :wink:
Title: Head gaskets
Post by: Garth on October 29, 2006, 11:58:18: Can you do one side without the other. I have miss on No 8 most noticable on tick over. Its not electric or injectors so now looking at sticky or NG valve or NG head gasket.

Do you need to fit new headbolts?

How can you tell what type of gasket you need before you take the head off?
Title: Head gaskets
Post by: Range Rover Blues on October 29, 2006, 12:20:59: No * is D/S isn't it?

Yes you can do one side only but, if you regrind the valves you may end up with unbalanced compression. You must fit the same type of head gasket that you find and you shouldn't skim only one head. you can get round this by fitting a composite gasket in place of a tin one and skiming the head.
Title: Head gaskets
Post by: muddyweb on October 29, 2006, 13:56:00: I'd never bother only doing 1 side to be honest. You've got the top end in pieces so it's worth doing both and checking it all / giving it a clean up whilst you are in there. Head gaskets are peanuts, so the extra cost is minimal.

Take it apart once... put it back together once ;-)
Title: Head gaskets
Post by: Garth on October 29, 2006, 23:56:41: Baileys_1984

Why are you asking?

I have fitted another (spare) set of leads and put in a upper engine cleaner addttive yesterday and performance is noticable better and running a lot smoother.
Title: Head gaskets
Post by: baileys_1984 on October 30, 2006, 13:33:29: cuz hubby thinks gasket gone between piston and water chamber
Title: Head gaskets
Post by: Range Rover Blues on October 30, 2006, 14:34:52: :shock:

That could be something a lot worse.
Title: Head gaskets
Post by: Garth on October 30, 2006, 23:40:38: I presume water in oil and/or vise versa?
Title: Head gaskets
Post by: baileys_1984 on October 31, 2006, 13:29:22: Quote from: "Garth"
I presume water in oil and/or vise versa?

nar just water bottle get's water comming out when engine hot overheating drivers side pistions showing from front 90psi 90psi 90psi 120psi got to test other side
Title: Head gaskets
Post by: Garth on October 31, 2006, 23:08:06: [!Expletive Deleted!] :!: :!:
Title: Head gaskets
Post by: jjsaul on October 31, 2006, 23:19:39: im currently losing 2-3 litres per 100 miles from mine with no obvious leak... :?
Title: Head gaskets
Post by: DaveS on November 01, 2006, 09:15:25: That's what mine was doing, it was the head gasket!

Have you checked for white sludge in the rocker covers? The filter on the left (from front) on mine was choked up with it.
Title: Head gaskets
Post by: Range Rover Blues on November 01, 2006, 14:18:13: That's called a flame trap.

expect about 165 psi from a used but solid high compression V8 with no obvious tuning work (MY LSE tops 205 PSi but it broke the guage) so your's sound poorly.

If it is just the gasket then I'd say that head needs a skim, so don't shirk on it, do both sides and re-lap all your valves too. If this takes out the problme you'ff notice how much better it will run after.
Title: Head gaskets
Post by: Garth on November 07, 2006, 23:34:27: Done compression test tonight and LH bank between 155 psi and 163psi
So its back to the drawing board
Title: Head gaskets
Post by: Range Rover Blues on November 10, 2006, 16:52:50: 90 PSi, I think someone has stolen your rings, or you've burned out 3 valves. expect between 165 and 200 psi depending on wear/head skim etc.