edashmead@verizon.net Posted February 11, 2019 Report Share Posted February 11, 2019 So I've got a basket case TR33. Just checked ring gap - about .045in. Kinda BIG. I've read about lack of pistons but does anybody make rings for these? Thanks. Quote Link to comment Share on other sites More sharing options...
section swept Posted February 12, 2019 Report Share Posted February 12, 2019 How are you measuring the ring gap? Quote Link to comment Share on other sites More sharing options...
edashmead@verizon.net Posted February 12, 2019 Author Report Share Posted February 12, 2019 Push ring into the cyl from the the top, about 1/2-3/4" down. Then feeler gauge on the gap against the cyl, not at the pin gap. Quote Link to comment Share on other sites More sharing options...
section swept Posted February 13, 2019 Report Share Posted February 13, 2019 (edited) 9 hours ago, edashmead@verizon.net said: Push ring into the cyl from the the top, about 1/2-3/4" down. Then feeler gauge on the gap against the cyl, not at the pin gap. Put ring into bore where piston ring doesn’t normally reach....this is relatively unworn area square up with pistoncrown now measure ring gap. Its not usual to measure between the ring and cylinder wall. There are some good videos to show you how on google. Edited February 13, 2019 by section swept 1 Quote Link to comment Share on other sites More sharing options...
edashmead@verizon.net Posted February 14, 2019 Author Report Share Posted February 14, 2019 So I know how to measure the gap, just did not explain it well. Still wondering about original question - is there a source for rings? Quote Link to comment Share on other sites More sharing options...
edashmead@verizon.net Posted February 14, 2019 Author Report Share Posted February 14, 2019 i'll look into it, thanks Quote Link to comment Share on other sites More sharing options...
nigel dabster Posted February 15, 2019 Report Share Posted February 15, 2019 On 2/14/2019 at 2:42 AM, edashmead@verizon.net said: So I know how to measure the gap, just did not explain it well. Still wondering about original question - is there a source for rings? pretty sure not. Exactly the same as tr34 no pistons no rings afaik.........???? Quote Link to comment Share on other sites More sharing options...
section swept Posted February 15, 2019 Report Share Posted February 15, 2019 Just had a quick look on Google and Goetz seem to state that they have a wide selection of piston and rings. As I understand it when you want to manufacture an engine for mass production or a one-off, the designers specify the requirements and the various suppliers look at what they have in terms of manufactured stock. In other words by referencing they tell what to use. So out there somewhere is a supplier that may well be able to match the specs from their stock. As for rings I’ve taken a pattern to a local engine remanufacturer who plopped the ring onto a magnifier and produced a slection of options for me to select. Without being petty about it....if you are determined you will eventually find what you are looking for and don't discount the idea of searching in other areas such as the marine (outboard) industry. Then theres the China and India route.....? In all of this I hope it may be helpful?? Quote Link to comment Share on other sites More sharing options...
suzuki250 Posted February 15, 2019 Report Share Posted February 15, 2019 might be worth asking https://www.omegapistons.com/index.php Quote Link to comment Share on other sites More sharing options...
pschrauber Posted April 1, 2019 Report Share Posted April 1, 2019 I had good experience with Woessner, who made the piston, rings, piston pin and also did the cylindercoating to my TR34, all in all verý convinient and cheaper as if it would have been done separatly. I now can get through my engine workshop spare rings just by sending them the batch number, (I refer to German Woessner here…) Quote Link to comment Share on other sites More sharing options...
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