How to check your Porsche Air-Cooled Piston Ring-Gap

In this lesson on how to rebuild your air-cooled Porsche engine, we are checking our ring gap.
We will do the final gap placements when we install the pistons, but for now, we set up and check the gap size, install the oil rings, 1st and 2nd rings, and we will be ready for the next lesson.
On this particular two-liter engine, we are using aftermarket pistons and cylinders. If you want to check your old pistons and cylinders, you will need to measure them. We have an article on the subject here;
www.klassikats.com/index.php/...
Cylinders here;
www.klassikats.com/index.php/...
Check out our website for more air-cooled Porsche information.
www.klassikats.com/index.php/...
You may need a
Depth Gauge, amzn.to/31iUL4B
Feeler Gauge Set, amzn.to/3qp0Wzw
Video is for entertainment purposes, please Porsche responsibly.
Like and subscribe, share with an air-cooled buddy, let us know what you think and what you are interested in.
Thanks, Klassik ATS

Пікірлер: 10

  • @KoenigsTiger957
    @KoenigsTiger9572 жыл бұрын

    Great video!! Thank you for sharing your knowledge!

  • @klassikats

    @klassikats

    2 жыл бұрын

    Glad you enjoyed it!

  • @johnfreeman1189
    @johnfreeman11893 жыл бұрын

    Always great videos... Thanks for the tips! Much appreciated!!

  • @klassikats

    @klassikats

    3 жыл бұрын

    Thanks for watching!

  • @nevenmacewan1869

    @nevenmacewan1869

    3 жыл бұрын

    Hi Kurt, what is your opinion on aftermarket cylinders versus boring a mahle biral for JE pistons? I'm facing this decision for my 85mm bore. That cylinder looked biral or was it nikasil? Thanks

  • @klassikats

    @klassikats

    3 жыл бұрын

    @@nevenmacewan1869 Neven, You can certainly bore your existing cylinders to match a new piston. Both biral cylinders and Nikasil cylinders can be overbored for new pistons. The only difference is that a Nikasil cylinder will need to be sent to a specialty shop to recoat the cylinder after boring. Whereas a biral cylinder can be overbored at almost any machine shop. If you have Nikasil cylinders I would look at over boring and retaining the cylinders. If you have Biral cylinders now then I would most likely just buy the new set. It will be cheaper and quicker than machining your cylinders, with no loss in quality.

  • @nevenmacewan1869

    @nevenmacewan1869

    3 жыл бұрын

    @@klassikats Thanks, so in your opinion the aftermarket biral cylinders are as good as a rebored mahle one? My concern is that they only come in 86mm (whereas I was planning to bore my mahle ones to 85mm) and that leaves little distance of direct seal to the head before the CE ring

  • @klassikats

    @klassikats

    3 жыл бұрын

    @@nevenmacewan1869 AA has 84 mm biral cylinders. I would not be concerned about boring a cylinder to 85 mm either.

  • @dennisvogel
    @dennisvogel7 ай бұрын

    Hi Kurt. 1. Do you grind a single side of the ring or equally from each side? I have seen arguments for both. 2. Does the direction the wheel rotates make any difference? I'll be using a manual ring grinder if it matters. Thanks.

  • @klassikats

    @klassikats

    7 ай бұрын

    Dennis, When grinding a ring, you should only have to take a very small amount off. If you need to take off a lot of material, then I would be looking at buying a different set of rings that are closer in size to start with. When dressing the ring, you can just pick an end and adjust the gap. Just make sure that the grind is square to the ring. Kurt