Rocker arm/shaft question

[Tinster]

I believe a defect in the manufacture of my existing rocker arm
shaft is the cause of dry rockers No.12 and No 1.

I have a new shaft ordered and some almost new rocker arms gifted,
in case any of mine show excessive wear.

My question: I have never seen a TR6 engine operate, except
my own. With valve cover off, at full operating temperature,
my rocker arms oil holes "seep" oil. One tiny drop at a time.

Is this correct? Or should oil flow swiftly out of the 2 oil holes
in each rocker arm. Thanks, Dale

My pushrod for valve No.1 spins but is dry of oil. No 12 has
plenty of oil.

I am hoping the new shaft will correct the existing problems.

Photo of what I think is the defect in the existing shaft.
Defect in oil channel to rocker No. 12.

 

[DrEntropy]

It should just "ooze".

As for the wear on #1 & #12, it would be my WAG that over the life of the thing entropy sets in, and wear on the entire length of the shaft/rocker has allowed lubricant to escape thru the increased tolerances. That would decrease the overall "pressure" of the shaft, the end two would be affected most due to the design.

I'd call it "normal wear", replace the parts you can afford (shaft being primary) to and reassemble it. Then drive th' livin' *&%$ outta it. It'll outlive us all.

 

[Tinster]

Thanks Doc,

No wear at all on No. 1 rocker.

ALL the shaft oil holes have a shallow groove connecting to the shaft vertical slot under each rocker- except No 12. Would the lack of the oil groove under No 12 cause excessive
shaft wear and low oil pressure at No. 1 ?

Thanks,

dale

 

[TR6oldtimer]

Dale, yes if the shaft lacked the groove, it would not be properly oiled. On the other hand, if the oil feed hole was for some reason blocked, then the rocker arm could have worn down the shaft enough to eliminate the groove. This could also have happened if the valve clearance was not set right.

But who really knows?

The important thing now is how you inspect and assemble the parts.

 

[Brosky]

Dale,

Ray & Doc are correct as usual. Just don't add any worn or sloppy fitting arms to the new shaft and you will be fine. But also, don't expect to get an oil shower when you run the engine with the cover off at normal idle. No matter what, that won't happen.

 

[Brosky]

And where did they ship that shaft from??? You ordered that about two weeks ago, didn't you?

 

[Tinster]

And where did they ship that shaft from??? You ordered that about two weeks ago, didn't you?

Ordered 3 weeks ago from British Parts, Inc in Atlanta.
$10. shipping to anywhere in the USA.......except PR
which costs $65 to write zip 00961 on the box instead of 21046.

So I had to double ship it to a buddy in the States and then here.
It's in the priority mail system now for 10 days. I hoping it arrives
next Tuesday.

A funny. British Parts wanted $87. shipping for one rocker arm!!

Thanks for the interest.

dale

 

[Gliderman8]

Hey Dale, it's too bad they can't ship in the USPS flat rate boxes. I would think the parts would fit as they are small.

 

[Tinster]

Hey Dale, it's too bad they can't ship in the USPS flat rate boxes. I would think the parts would fit as they are small.

<span style="color: #990000">Sure they could ship flat rate boxes but they won't. We use them
all the time and honest vendors like Tony the Autoist use them.
It is profiteering pure and simple. I'm not positive but I
think the actual cost from my friend's PO in New England to
PR was around $8.00

I call these guys on the phone and always get the same answer:
"We're very sorry but that is our company policy. You argue
until they finally hang up on you.

Robbery. I feel sorry for the PR folks who do not have friends
in the States to double mail.

Makes me steamed.

dale</span>

 

[Brosky]

Sorry Dale. I thought that the new PO flat rate package would have taken care of that for you. I didn't realize it was up to the shipper to do the ripping off.

Well, only a couple of days to go now.

 

[Tinster]

Sorry Dale. I thought that the new PO flat rate package would have taken care of that for you. I didn't realize it was up to the shipper to do the ripping off.

Well, only a couple of days to go now.

<span style="color: #990000">It has always been the shipper, Paul. I've lived and worked
here 20 years, I know what it costs to USPS stuff back and forth.
And it sure doesn't cost $80. for 6 spark plugs!!

I'm hoping Tue or Wed. for the new shaft. But I find it odd
that so many Stateside sellers would rather turn down a sale
than charge honest postage.

later gator,

d</span>

 

[DNK]

Dale- I hope you just order from Tony from now on .I bet you get fair prices and shipping from him.
If you need something from BPNW, let me know

 

[Tinster]

Dale- I hope you just order from Tony from now on .I bet you get fair prices and shipping from him.
If you need something from BPNW, let me know

<span style="color: #990000">Yup Don, Tony's great! I wish I had know him before
I had the car 95% replaced with new parts.

I wrote off BPNW years ago due to their outrageous shipping
prices. I checked yesterday and they seem have come down to
the world of reality. Still high in shipping but affordable.

As question, posted to me</span> " <span style="color: #000099">This could also have happened if the valve clearance was not set right.</span>

<span style="color: #990000">Is this another way of saying rocker arm clearance?
Thanks, I can't wait to get my engine back together even
though the heat index for today is 100*

dale</span>

 

[70herald]

valve clearance is the same as rocker arm clearance just depends if you are looking from top to bottom or bottom to top.
I fail to see how it is relevant though.