andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,162
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Apr 23, 2024 22:00:30 GMT
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Spoke to the engine builder who machined the heads, the head is under guarantee and he'd like it back to find out why. Obviously, if it's something the muppet who fitted the head has done, then it's down to said muppet.
If it's a part failure or assembly issue, he'll take responsibility. I don't think it's me and the fitting, all the other valves are fine, the rockers rock and the pushrods are straight and still push. The valve does seem stuck in the guide though.... I'll know more after tomorrow.
Anyone know an exorcist? I'm beginning to believe this Land Rover is possessed!
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,162
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Been thinking about this, if it is a manufacturing fault, what is reasonable to ask for?
When I spoke to the engine builder, he did ask if the missing bit had been found. Now I'm fully aware that the only way to find it, will be a full re-build of the engine, something I have neither the skills for or the facilities.
Can I ask for the re-builders to pay for the engines removal, rebuild and replacement?
I have the feeling it'll be a set of gaskets if I'm lucky and a diesel when the V8 eats itself!
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Davey
Posted a lot
Resident Tyre Nerd.
Posts: 2,218
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If that fault is with the builders then its on them to sort it out completely. You shouldn't be out of pocket at all. They will probably only want to cover work they've done, so if you fitted the engine then they wont cover that but it will be on them to sort any damaged otherwise. Much like any other warranty.
How did you pay for the work? If it was by credit card you have a lot more protection than you may realise. If you haven't had the heads off or been fiddling with anything internal I can't see how this can be anything other than a faulty valve or something amiss with the building.
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if it's not anywhere in the rocker cover the only place it's either gome down the oil drain to the sump or the push rods to the valley, hopefully you will find it when you pull the head and take the valley gasket off.
Should it even have exhaust valve stem seals? Only the later ones had them, I'd not have fitted them on something like this, a bit of oil will prevent the valves seizing in the guides...
I am suprised the valve has broken though usually the push rod bends.
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Last Edit: Apr 24, 2024 9:39:19 GMT by kevins
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,162
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Apr 24, 2024 14:47:51 GMT
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Apr 24, 2024 15:14:31 GMT
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The dent in it's aelf probably wouldn't be an issue, I'd be worried it's distorted the piston though, If you can get the sump off in situ it's a fairly simple task to pop the piston and rod out.
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Darkspeed
Club Retro Rides Member
Posts: 4,705
Club RR Member Number: 39
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Apr 24, 2024 15:46:10 GMT
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I would want to see the rocker shaft and the wear pattern on the rocker pad. The ends of the shafts are unsupported on the RV8, with that being the end valve a possible failure is that the rocker has been smacking it sideways due to a worn or damaged rocker, a bent rocker shaft, or the end rocker not assembled on the shaft correctly.
The issue can be made worse when using higher lift cams and uprated valve springs which is why rocker shaft end supports are available.
That must have been making a right old racket.
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,162
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Apr 24, 2024 16:26:15 GMT
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Wear pattens seem even across the rocker pads, both sides and I can't see/feel any issues with the shafts.
I didn't really hear any noise, but it is a a tin Land Rover with an "almost" straight thru exhaust!
It did get very hot and I pulled over and after the temperature dropped to normal and I did 80+ mph in it!
It's a standard build, just a Newman PH1 cam which is just meant for low revs torque. I may drop the sump and pull the piston, but I'll probably just bolt it back together and run it. No more patience for it now, in a way I wish the engine had gone bang, I'd have a good excuse to fit a TDI!
As I said before, Rover V8's, too light to be a boat anchor and not much good for anything else!
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,162
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Apr 24, 2024 16:27:41 GMT
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Forgot to mention, the wedges in the collet for the valve spring is broken. It's in 3 parts, not 2!
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misteralz
Posted a lot
I may drive a Volkswagen, but I'm scene tax exempt!
Posts: 2,341
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I'd be inclined to do the same, although I'd get a wee file on the jaggy bit of damage just to prevent hot spotting.
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Apr 25, 2024 19:19:07 GMT
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Stange you've had so many problems, I've found them (mine have all been 3.5's) to be reliable, the main weaknesses being oil leaks from all sorts of places and a propensity to chew up cams on modern oils.
That said I did have one that had had a trauma (looked like it had hydrauliced) that was never right.
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andyborris
Posted a lot
Freedom is just another word for nothing left to lose.
Posts: 2,162
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Stange you've had so many problems, I've found them (mine have all been 3.5's) to be reliable, the main weaknesses being oil leaks from all sorts of places and a propensity to chew up cams on modern oils. That said I did have one that had had a trauma (looked like it had hydrauliced) that was never right. I was once told that "if I didn't have bad luck, I'd have no luck at all", so probably not the engines fault, it's in the hands of a "Jonah".
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geoffc
Part of things
Posts: 56
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Hi Andy. Been following with interest. With regards to you engine and it's running temps, can I suggest that you have another look at you belt layout. As you have I believe a serpentine cover and pump and these spin the opposite way to a v belt system. With yours also missing a few items from the normal setup it could be spinning the wrong way. Hope this may help.
Geoff
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