Compression numbers..

Posted by jim lee [172.68.142.44] on Friday, June 01, 2018 at 22:15:45 :

In my vain attempt to get this machine to run up to snuff, I ran a compression test. (Due diligence before buying a Carb.)

1: 135
2: 135
3: 125
4: 100
5: 125
6: 125

I'm a little worried about #4. So I squirted oil in there and ran the test again. No change. I guess its a valve issue going on in there.

Now I looked around for what this motor is supposed to have for compression numbers. Depending on what I read its 90..120.

What say you?

-jim lee

• Overland signup.

Follow Ups:

• Bad Piston/Rings - Vaughn 10:16:15 06/03/2018
• Re: Compression numbers.. - Matt Wilson 15:24:09 06/02/2018
• Adjusted your valves lately? - Chris Case 08:24:56 06/02/2018
  • Wait a second.. - jim lee 15:12:58 06/02/2018
    • Re: Wait a second.. - Keith in Washington 18:10:47 06/03/2018
    • Re: Wait a second.. - Kaegi 13:50:55 06/03/2018
    • As the set wear, the lash gets less, soon valve don't close. nm - Chris Case 09:24:57 06/03/2018
    • Re: Wear - Jeremy Horvath 19:21:02 06/02/2018
  • 4 or 5? Way ahead of you, I used 6. ntx - jim lee 12:15:14 06/02/2018
• Thanks! - jim lee 03:05:27 06/02/2018
• Re: Compression numbers.. - Daryl in Oz 01:38:27 06/02/2018
• Re: Compression numbers.. - Kaegi 00:42:49 06/02/2018
• Re: Compression numbers.. - Vaughn 00:37:35 06/02/2018

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