That 213 sounds high. 120-150 psi is normal for most automotive purposes. The higher compression ratio the higher the compression test readings. 100 psi would be about right for an engine with a 8 to 1 compression ratio. your engine should run fine with that reading. It might down a little on power, but the valves may need adjusted to bring up the readings , valves that are too tight may bring down your readings.
Yeah, Stan at oregonvintage said the limits should be between 140 (normal on a warm engine) and 170 the high range. If a few drops of oil brings low compression up, there's a ring problem. Otherwise it's a valve problem. He really went o ut of his way to look it up for me. Karma points for him!
Make sure you hold the throttle in the wide open posiiton while cranking it over. I have seen guys do a compression check with the throttle in the idle positin and it doesn't get enough air in to compress thus it is not accurate. Also if the reading is low you can put some oil in the cylinder and see if the compression goes up. If it goes higher then you have bad rings if it stays about the same the problem is probably in the valves or head gasket.
I thought it was high too. I thought maybe they inverted the numbers, but they also list a metric value of 15 which is equivalent to 213psi. It is strange that they would make that big an error in a factory service manual. It IS China, though.
Mike I agree 213@ pounds of compression is an awful lot. I would venture to GUESS that 125# would be with in specs. and 100# would be boarderline. with 213# I don't believe that you would be able to kick it over or for that matter the electric starter could spin it.
wereed: HOw can I start a thread?
Jun 1, 2013 10:55:49 GMT -5
wereed: or respond to a thread I started three years ago...
Jun 1, 2013 10:56:07 GMT -5
marklorenzi: I just bought one of the Fleetwoods. They look like a clone of the Honda XRM's they sell overseas. It is in transit now and I should get it this week. I will try to post my experience here. Call me the guinea pig hahaha.
Jun 2, 2013 20:29:11 GMT -5
flyangler: wereed, this forum is read only the new forum is on the banner above. Dan
Jun 5, 2013 7:35:29 GMT -5
silkyg1973: can someone please tell me how to post
Jun 10, 2013 12:08:46 GMT -5