Land Rover V8 Cylinder Leak / Crack
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- เผยแพร่เมื่อ 27 มี.ค. 2013
- 2 pin-hole leaks in an aluminum 4.6L V8 out of a 2003 Land Rover Discovery II. Block pressure-tested up to 60psi without leaks when liners/sleeves were in. After removed sleeves/liners, the leak appeared. I'm glad I didn't try to run the engine like that thinking it was just a head gasket leak!
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Great video Jake! Best I've seen so far. This is the same location Robison found on the blocks they tested. Seems to have something to do with the proximity of the head bolt threads.
+Dan Easter Yea, one theory is the tooling Land Rover bought from Buick from the 215ci V8 motor was worn. Some say they weren't waiting enough time between engine casting and drilling cylinder head bolt holes.
You can buy tophat liners that have o-rings at the bottom. I've got a spare 4.0 that I think I'll be doing this with.
How is the engine holding up after you did the weld repair to the block?
Damn, that sucks....just subscribed
Jake,
What type of symptoms did this engine have due to the pinholes ?
+Billkoustenis Overheating, white smoke in exhaust, coolant in oil pan. When I bought it, the auto transmission was in the back seat, uninstalled, the starter motor had exploded, and it hadn't been run in months. I thought it was a simple headgasket job, but later realized it was a block leak.
Think this is what’s wrong with my car are sleeves not an option? Would welding be a permanent fix?? My car has same head gasket type symptoms, white smoke coolant in the oil too, is cold stitching an outdated fix?? Would be grateful for some advice
The recommended sleeve are called "top-hat" sleeves. They have a flange at the top that sits in a groove that you would have to have machined into the top of the piston. The sleeves also have an o-ring at the bottom. The designs prevents the sleeves from slipping downwards and any future block coolant leak from reaching the cylinder head.
The best place to get them from is actually England, even though the sleeves are made in California. It was less expensive and 1-2 days to get them from England via DHL than from the actual manufacturer in California. The website is: turnerengineering.co.uk.
Good luck
I know this is an old video but I’m curious on where I can find this pressure test kit? I’ve called MotorcarsLTD and they don’t carry this kit anymore. My local machine shop is out about 6 weeks so I’m curious if I can at least check if the block is trash before then. Thank you for all your videos. I started from thinking my timing chain was creating the ‘tic’ haha sure enough it gets way deeper than that. Cheers!
Hi Eli, I fabricated it out of 1/2" Aluminum plate and 1/2" thick rubber from Amazon, using cardboard templates and cut both materials on a sub-$100 chinese bandsaw. Then I drilled and tapped holes for an air hose quick connector (also using cheap NPT taps from Harbor Freight). Good luck with your motor!
Which engines should be avoided if I'm going to buy a land rover? Are all diesels like this or petrol?
How come the 60psi test, when coolant circuit is only 14psi?
Because the leaks sometimes don't show until you test at a higher PSI and with heat too (from halogen work lights).
Подробно и полезно . Спасибо .
Такие дыры они делаются или как?
Wow....these early 2000's land rovers are a ticking time bomb......I see so many cheap Range's on the market.....under $2k for a car that was originally $80k 20 years ago!!! Too good to be true lol.
I dont have coolant in oil...but it runs hot..new thermo...new WP...no smoke out exhaust...
you could try epoxy
if theres a pinhole theres a big chance the walls are eaten intoo by bad coolant and anodisation
+watahyahknow I TIG welded the holes and then installed top-hat liners from TurnerEngineering in the UK (actually USA made sleeves, but was cheaper and quicker to order from UK).
interesting , was looking intoo a manufacturer closer to europe myself , will look intoo that one
thank you
...... oh darn their landrover only