How can I tell if the ring is Moly, Chrome or Cast?
Moly will have a shiny grey OD; chrome will have a shiny silver OD and the cast ring will be black in color on all surfaces.
How do I know if I have the correct oversize?
The oversize is stated on the set label of the ring set – check the ring end gap in your bore to verify correct gap to bore.
How many brands are on TecDoc?
There are over 560 aftermarket brands with more than 136 million linkages of part numbers to vehicle applications.
I bought this set and it is supposed to be Chrome-Moly - how can I tell I have the correct rings?
Coatings on the rings are either moly filled or chrome plated. You can look at the side of your box to see the abbreviation as well. The set number indicates:
2C = Chrome
2M = Moly
No prefix = Cast
I don't want a Chrome ring set, they never "seat"
Chrome rings are “pre-seated” before leaving the factory. Proper finish of the cylinder wall for Chrome rings (220-280 Grit stone) will ensure a better and faster seating of the rings.
I removed the rings from the box, which is the top ring and which is the 2nd?
2nd ring has a DOT on the top and an inside bevel on the bottom – install DOT towards top of piston, check top ring for inside bevel, bevel install up, if no inside bevel, install either way in top groove.
Is my ring set Plasma Moly?
If the rings have a shiny grey O.D. indicating it is a Moly filled top ring.
Is TecDoc available in multiple languages?
Yes, it is available in 28 languages.
My application is a metric engine - how do I know I have the correct set and oversize?
If the engine is metric, the ring set is fitted for the metric bore and groove widths; the label on the set box is SAE.
The gap on the rings are out of spec. What should I do?
Advise customer standard SAE spec for Aftermarket – most customers are reading the manual for the OE rings and assume that is the spec.