This site uses cookies to maintain login information on FarmallCub.Com. Click the X in the banner upper right corner to close this notice. For more information on our privacy policy, visit this link: Privacy Policy
NEW REGISTERED MEMBERS: Be sure to check your SPAM/JUNK folders for the activation email.
Compression test without starter
Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
-
- 10+ Years
- Posts: 49
- Joined: Mon Jan 24, 2011 11:10 pm
- Zip Code: 21921
- Tractors Owned: .
49 Cub
47 H
39 JD B
48 Massey-Harris 22
Gravelys (gobs of 'em) - Circle of Safety: Y
- Location: Elkton, MD
Compression test without starter
My '47 H, Arby, is proving himself to be a tired old fella. I'd like to run a compression test but I use a hand crank. How would I go about getting an honest reading without a starter providing the adequate cranking speed?
-
- 10+ Years
- Posts: 6338
- Joined: Wed Sep 12, 2007 8:40 pm
- Zip Code: 49120
- Circle of Safety: Y
- Location: Niles / Buchanan, Michigan
Re: Compression test without starter
Pull all the spark plugs and spin it over. Take dry readings then put about a tablespoon of oil in each cylinder and try it again for wet readings. You don't need a starter to get the compression readings.
1929 Farmall Regular
1935 John Deere B
1937 John Deere A
1941 John Deere H
1952 John Deere B
1953 Farmall Cub
1935 John Deere B
1937 John Deere A
1941 John Deere H
1952 John Deere B
1953 Farmall Cub
-
- Team Cub Mentor
- Posts: 20378
- Joined: Fri Jul 02, 2004 9:52 pm
- Zip Code: 65051
- Circle of Safety: Y
- Location: Mo. Linn
Re: Compression test without starter
Do as Ricky says. 4 or 5 compression revolutions (8 or 10 full engine revolutions) per cylinder test.
You will not be able to spin the engine over at 150 rpms. Just as fast as you can. So readings may be a bit low.
Run the tests, record the results. Report back.
You will not be able to spin the engine over at 150 rpms. Just as fast as you can. So readings may be a bit low.
Run the tests, record the results. Report back.
I have an excuse. CRS.
-
- Cub Pro
- Posts: 10290
- Joined: Mon Oct 24, 2005 8:35 pm
- Zip Code: 23962
- eBay ID: dmb2613
- Circle of Safety: Y
- Location: VA. Randolph
Re: Compression test without starter
you can take one pug out and install the tester and start it up , do the same the the other cylinders
the results with be the same as checking it with the starter, and save your arm
the results with be the same as checking it with the starter, and save your arm
IN GOD WE TRUST
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg
-
- Similar Topics
- Replies
- Views
- Last post
-
- 10
- 1401
-
by ScottyD'sdad
Thu Apr 28, 2022 8:08 am
Return to “Farmall / IH / CASE”
Who is online
Users browsing this forum: No registered users and 1 guest