Genuine VS. non-genuine

Been looking this up quite a bit as it interests me. Hydraulic lifters/tappets for the Rover V8.

So obviously when something goes wrong people complain about things and you don't really hear about the things that went well or didn't fail - unless someone specifically mentions it.

Again, obviously genuine hydraulic lifters are the best way to go but as I said above, it interests me. There are countless threads online with noisy tappets/lifters and the advice is to use genuine ones.

But there's part of me that says, is there anyone out there that has had a good experience with non-genuine tappets? There has to be?

That and if you bought non genuine lifters and they were noisy what would be the result of going back to the supplier and telling them they're faulty... get new sets until you get a good set? Is there such a thing as non-faulty non-genuine Rover V8 tappets?

real steel do a set for £50 so should be decent

They also do cheaper ones and the comment makes me giggle...

"As above but seconds- not perfect" :lol:

yes..i have..

genuine not needed..but oe is.

marccleave said:

They also do cheaper ones and the comment makes me giggle...

"As above but seconds- not perfect" :lol:

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Presume that means they have scratches on them or britpart bags

zen said:

yes..i have..

genuine not needed..but oe is.

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Ah right interesting!

Dr_evil said:

Presume that means they have scratches on them or britpart bags

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I want to build a Rover V8 completely out of aftermarket/cheapo parts and see what goes wrong... I'm not sure I could put a block through that!

marccleave said:

Ah right interesting!





I want to build a Rover V8 completely out of aftermarket/cheapo parts and see what goes wrong... I'm not sure I could put a block through that!

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get a shagged block then

zen said:

yes..i have..

genuine not needed..but oe is.

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Now I'm curious... what about camshafts? Would OEM be okay? Not that I'm considering slinging in a new cam in my engine or anything...

Dr_evil said:

get a shagged block then

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A shagged block in my eyes requires new liners or +10/20 thou rebore... I know we own Land-Rovers but some of us aren't made of money! Was just a thought I had thats all.

i shouldnt think genuine tappets are genuine ,like most parts for obsolete units, you can still buy lucas injector nozzles but there made in poland and poor so are only genuine by name not quality

marccleave said:

Now I'm curious... what about camshafts? Would OEM be okay? Not that I'm considering slinging in a new cam in my engine or anything...




A shagged block in my eyes requires new liners or +10/20 thou rebore... I know we own Land-Rovers but some of us aren't made of money! Was just a thought I had thats all.

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You can pick up a block from the scrappy for £30 though and then britpart it! See what breaks first, water pump, belts, timing chain, head gaskets etc

Very cynical, I mean realistic james! :lol:

Would be interesting to find out the differences between decent parts and absolutely crap parts, just machining tolerances or what... The mind boggles how some things can be so bad?

Dr_evil said:

You can pick up a block from the scrappy for £30 though and then britpart it! See what breaks first, water pump, belts, timing chain, head gaskets etc

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"The Cheapest Rover V8 Rebuild Ever"

Then see what breaks first yeah you're right!!!

marccleave said:

"The Cheapest Rover V8 Rebuild Ever"

Then see what breaks first yeah you're right!!!

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Don't bother with a rebore or anything just make the ****est V8 you can!

Dr_evil said:

Don't bother with a rebore or anything just make the ****est V8 you can!

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That would be horrible! Please no!

marccleave said:

Very cynical, I mean realistic james! :lol:

Would be interesting to find out the differences between decent parts and absolutely crap parts, just machining tolerances or what... The mind boggles how some things can be so bad?

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its usually quality of the metal and hardening i find more than tolerances, you can see the difference , ive just fitted a set of britpart tappets recently customer supplied so ill see how long they last

jamesmartin said:

its usually quality of the metal and hardening i find more than tolerances, you can see the difference , ive just fitted a set of britpart tappets recently customer supplied so ill see how long they last

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Right excellent, real life experiment... Keep us updated! Can have any more information on the parts put in, kept original push rods, new cam as well or what? Details please if you can!

just tappets ,original cam and push rods ,not my idea , but an extremely nice classic ,and a bloke who takes much care which is surprising he insisted on just tappets

I think the need for "genuine" parts are more applicable to performance vehicles.

I own a Volvo V40 T4 and i've found that basic service parts that are non-genuine tend to hold back the performance of the vehicle.
For instance, i use genuine Volvo spark plugs in it as even the top end Iridium plugs from NGK have an adverse reaction at top end speeds.

MAF sensors are the same too.
I was trying to diagnose an issue on my car and found that when i used a non genuine MAF, it caused the car to throw up all sorts of sensor issues related to it.
It also pointed out that i had an intermittent fault on one of my O2 sensors.
And those things, even though they're not cheap, also need to have genuine Volvo parts too.

So i would say that unless you are running an RR sport or some kind of supercharged RR, i wouldn't worry so much about using non-genuine parts.