The stock measurement for thrust is 0 864 and it can be cut as much as 0 080 under.
Air cooled vw thrust bearing.
Includes 6 shells to do 1 engine.
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The thrust measurement is determined by measuring the thickness of the last main journal on the flywheel end of the engine.
This is a really good idea to use on any engine that uses stiffer than stock valves prings or uses a bigger than stock camshaft.
This is all based around the main bearing wearing over a long period and developing a more sloppy fit in the journal the bearing sits in.
If they aren t be prepared to make another trip back.
It s important to note that each thrust bearing will have a bearing tang on it.
Oversized thrust bearings are typically offered in 1 and 2mm os versions.
Watch as john edwards costa mesa r d automotive.
Here s a neat trick to save your air cooled vw engine block when the thrust had been knocked out and a double oversize thrust bearing won t work.
Theory behind thrust wear.
If your machine shop specializes in air cooled vws they may have a set of main bearings ready.
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Main journal thrust is the final measurement that must be performed when sizing your air cooled vw main bearings.
How to measure you aircooled vw main bearing set.