I made a stock style rocker arm geometry video.

[Brian_e]

Since it’s probably the most confused, and most frequently asked about topics, I decided to do one on setting up STOCK STYLE rocker arms. This video does not pertain to swiper foot ratio rockers as they set up a little different. Those will be a different video.

I try to keep them simple, and short, and explain them in easy terms, with good examples.

Other topics are in the works, but they take a while to get filmed, and my busy son does the editing.

Hope the video makes sense to you.


Link

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So more or less the lazier and stupider you want to be, the nicer quality parts you need to buy.
-Modok

Narrowed beams, Drop adjustable spring plates, Bus disk brake and IRS kits.
www.type-emotorsports.com

Type E Engine Parts and Supplies
https://type-emotorsports.com/collections/engine-parts

[oprn]

Thanks for that!
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[dunk]

Great video. Very informative.

One question.

The point you are concerned with... is where the arc motion of the rocker assembly turns into the reciprocating up and down of the valve... the exact intersection of the two motions.

With stock rockers that's the valve tip, same with slipper feet... but with elephants feet, it's not at the valve tip.. is it? Same with roller rockers, or the devil's design, the swivel balls.. not quite the valve tip.. slightly further up.

Again. Fantastic video. Probably.. no.. definitely the best one out there for the average vw guy. You have righted so many wrongs!

[Glenn]

Great video, gonna add it to the Sticky index.

BTW, CB sells pedestal shims in .015", .030" and .060" sizes.
https://www.cbperformance.com/product-p/1534.htm
https://www.cbperformance.com/product-p/1535.htm
https://www.cbperformance.com/product-p/1536.htm
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[vamram]

Great video, thanks for doing this. This engine novice has struggled understanding the whole lift thing and know I got it all wrong on my '74 w/a 1679. I'm going to try and correct that following this.
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[Brian_e]

Here is the next video about setting up swiper style ratio rockers, with the adjuster on the pushrod end.



Link

_________________
So more or less the lazier and stupider you want to be, the nicer quality parts you need to buy.
-Modok

Narrowed beams, Drop adjustable spring plates, Bus disk brake and IRS kits.
www.type-emotorsports.com

Type E Engine Parts and Supplies
https://type-emotorsports.com/collections/engine-parts

[hulbyw]

Thanks Brian!! Couple of questions (and apologies if this has already been covered). Firstly the spacing of the rockers for both applications - you only did one and checked the swipe. Should they all be centred the same as the one you checked the swipe?
Secondly, are slightly loose lash caps ok or should they be tight on the valve stem (it frightens me somewhat that loose lash caps might come off)

[Brian_e]

[chrisflstf]

If the mic is getting in the way, you can set it up one time, find half and full lift, note where the crank pulley degree wheel reads, then yank the mic out.

And dont forget to reset both the adjustable P/R length and adjuster screw if you reset either. Great video

[dl1970]

Just wanted to say a huge thanks for making this video. Had read/watched quite a bit about rocker geometry and to be honest, for someone doing it the first time, none of it made much sense. Your method makes it so much easier when you are measuring real things rather than going by sight/feel. It still took a few attempts to get it dialed in but without that video Id still be at it! For any one else doing this I ended up using the deck height tool bolted to a head stud out the side as i found it easier to get the gauge in the right place. Thanks again, your sharing of your skills is appreciated.

[Brian_e]

Glad to hear it worked out well for you.

Brian
_________________
So more or less the lazier and stupider you want to be, the nicer quality parts you need to buy.
-Modok

Narrowed beams, Drop adjustable spring plates, Bus disk brake and IRS kits.
www.type-emotorsports.com

Type E Engine Parts and Supplies
https://type-emotorsports.com/collections/engine-parts

[Murt]

Absolutely Great Video should be a 'Light Bulb' moment for other Newbies like me.
Oh how I wish that video was available in February !!!
I had watched a load of YouTube on geometry, and was getting nowhere fast. I was convinced that it was all about horizontal planes, and sat in front of my whiteboard, trying to figure out how it all worked, and once I had it explained in writing by you guys on here, made my little brackets and bought the angle finder did I finally understand the principles.

Here's the rabbit hole I was going down from February

If this video was available then, I would have been a lot better prepared, so thank you Brian. Will be using it again on the next build
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[UnSlow]

Thank you so much for providing that informative and easy to understand video. I now feel empowered to tackle the inspection and adjustment of my valvetrain on my 1642 turbo build and know that it will be assembled properly.

Next step will be to figure out which springs, retainers, and pushrods I should get since I am using an Engle W100 cam.

[hulbyw]

Thanks again Brian however I have a few questions. Building a 1904.
I have a copy 2239 cam with clearanced and countersunk stock rockers and Berg elephant feet.
With 030" shims I can get nearly equal angles at full and zero lift and 0.0 degrees at half lift. So the rocker angles are all good.
However at half lift the shim stock placed on top of the valve points to a point lower than the centre of the CB solid shaft.
Do I need to remove the shims and maybe get the rockers clearanced further?

[Brian_e]

I would try it without the shim, and screw the adjuster in some. You will also probably need to shorten the pushrod some.

Brian
_________________
So more or less the lazier and stupider you want to be, the nicer quality parts you need to buy.
-Modok

Narrowed beams, Drop adjustable spring plates, Bus disk brake and IRS kits.
www.type-emotorsports.com

Type E Engine Parts and Supplies
https://type-emotorsports.com/collections/engine-parts

[hulbyw]

OK. I have removed the shims and with the angle at 0.00 for half lift the top of the valve still points a little low. Is this going to cause issues given that the angles are 9.4 and 9.3 with zero at half lift? Thanks

[modok]