V8 Rocker Arm Replacement - where to buy?
V8 Rocker Arm Replacement - where to buy?
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Discussion

Chim-4.6

Original Poster:

6 posts

76 months

Thursday 19th September 2019
quotequote all
Sorry folks, to bother you,

but even the "search" did not deliver answers.

I need one new / used original rocker arm for my out-built 4.0 HC RV8.
Reason: Hardened plate gone away.

This engine did only run for 28.000 miles.
You can imagine, that i was pretty relieved, when i found the reason for the tickering noise.
Not a slipped liner, just a rocker arm.
The first one, left bank, looking from gearbox to front.
Only labelling is HRC 1050 15.
That does not really give a hint, what to look for

Due to the low mileage, and the poor resonance of my engine-sell-offer at ebay,
i don´t want to rebuilt the complete engine.

What do i have to consider before ordering?
And where to order, that i can get the similar one?

Thanks

Steve_D

13,801 posts

279 months

Thursday 19th September 2019
quotequote all
I think you will find the 15 is just the mould the casting came from.
The casting is the same but the pad is fitted left or right hand.

I have a drawer full of used ones but they don't come with any guarantee.

Steve

ric355

215 posts

170 months

Thursday 19th September 2019
quotequote all
I've just done this myself. I had one go completely actually smashed into pieces, and then when I checked the other bank one fell off when I touched it, so I'd recommend replacing them all personally.

I bought mine from Rimmer Bros;

https://rimmerbros.com/Item--i-GRID009191

Note they are handed, so a full set is 8 left and 8 right. The left and right refer to left and right for each cylinder, not left and right banks. This is fairly obvious when the shaft is removed and you see how they are positioned.

602153 and 602154 are the numbers.

I used the all steel alternatives, as then there are no pads to fall off. 602153P and 602154P.

Sardonicus

19,289 posts

242 months

Thursday 19th September 2019
quotequote all
Dont be tempted to but pattern/aftermarket but used OE should see you well wink I would take Steve up on his kind offer , but post up a pic, mentioned already they are handed

rev-erend

21,596 posts

305 months

Thursday 19th September 2019
quotequote all

Oldred_V8S

3,764 posts

259 months

Thursday 19th September 2019
quotequote all
Real steel.

Be very careful where/what you buy. After buying from one from a TVR specialist, my car started smoking like a pig. Removing the rocker cover showed oil to be running out from edges of the rockers and swamping the valve stem oil seals.

Returning the rockers shaft and rockers, I purchased another set from a different TVR supplier. These did exactly the same and looked identical to the first ones I fitted.

Putting my old rocker assy back on the car again, I looked at the rockers with the engine running and could see a drop of oil every 10 seconds from the edge of the rockers and no more smoke.

I have to say both the suppliers readily reimbursed me with one of them pursuing me to contact them after I was delayed getting back to them. I thought I would have a fight on my hands (I had bought the rockers some months previously) but both suppliers behaved impeccably.

Sardonicus

19,289 posts

242 months

Thursday 19th September 2019
quotequote all
Hence why I said what I said wink I remember reading your woes previously Oldred frown if you want YT roller rockers go direct to Paul @ V8 Tuner rather than pay others inflated profit margins rolleyes make sure you budget for new good quality rocker shafts at the same time if going that route

Chim-4.6

Original Poster:

6 posts

76 months

Thursday 19th September 2019
quotequote all
Ok,
i´m really grateful for your help.

As the 4.0 engine has pretty low mileage,
i will not change the complete camshaft.

That´s what i plan for the new 4.6 next year.

Now i have to identify what alingment i need:
It´s the first one, gear/clutch side, left bank.
Exhaust valve and looks like a right hand side.

Am i right?

Chim-4.6

Original Poster:

6 posts

76 months

Monday 30th September 2019
quotequote all
No hint, where to buy that rocker arm?

What new parts do i need beside that, when i disassemble both heads?

Are there more gaskets / o-rings beside the head gaskets?
New bolts are mandatory, i´m sure.
Am i able to check before disassembly, if there are composite gaskets mounted?