I'll probably stir up some controversy here, but I have wanted to post this for a long time. I have had 7-B21F, B23F, and B230 engines in as many cars and have had to replace the front seals in most of them because of clogged flame arrestors here in Minnesota. The first thing I do when buying one of these used cars, and have done for 10-15 years, is to throw out the Flame Arrestor and replace the seals. I have never had a problem with backfires, etc.
Has anyone ever thrown out their Flame Arrestor and had a problem?? Thanks.
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