|
|
| Re: A15 Rebuild Progress |
Subject: Re: A15 Rebuild Progress
by Lorne on 2018/4/17 18:50:51
Hi there, are you planning on a long-term build (ie: do it once and use it for high mileage) or is this a race engine (for time attack or short races), because these are either ends of the spectrum.
I've done the quick hone and wash up routine for a race weekend using a moly coated ring and had good short term success but a lot has changed with rings lately.
I would recommend you search the tech areas of several piston & ring makers online. Most are talking about plateau honing and All of them use deck plates for honing and some are even using a deck plate for valve jobs. Also, D-Sport magazine has a recent article series on proper ring gaps, honing and break in procedure.
Bottom line is, IMO, either method will work but the latter method is the one I would use if starting over now. Hope this is helpful.
Quoted from D-Sport article:
Years ago, the common practice was to hone a cylinder with a single grade of abrasive stone based on the type of ring to be used. This left a surface with sharp peaks that provided limited surface contact with the ring creating a challenging “break-in”. Today, high-performance machine shops employ a plateau honing procedure where stages of finer stones or abrasive brush knock down these peaks, establishing a better load-bearing surface during break-in."
http://dsportmag.com/the-tech/educati ... in-the-right-way/#respond
Good luck!
|
|
