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DanS
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Joined: Jun 17, 2012
Posts: 159
Location: Minnesota
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 Posted: Thu Jul 06, 2017 5:16 pm Post subject: |
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Don't rule out the oil pumper either. I had the same issue, the original pump spec'd out correctly, but did not provide adequate lubrication to the bearings. I had to rebuild my newly re-built engine because of this. As a result, I will NEVER use a "used" oil pump again. Very expensive lesson.
Dan
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Dan Schultz
MD20035 9/1952
MC70324 dod 6/52
GPW 14944 dod 4/10/42
K38 Linemans Trailer 4/43
M100 Trailer 01177488 dod 8/51 |
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johnpstoll
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Joined: Aug 19, 2016
Posts: 19
Location: Dent, Minnesota
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| Posted: Thu Jul 06, 2017 5:45 pm Post subject: |
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| I don't have a photo gallery and haven't figured how to upload a pic to my post. Still looking. |
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wesk
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Joined: Apr 04, 2005
Posts: 16256
Location: Wisconsin
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| Posted: Thu Jul 06, 2017 6:49 pm Post subject: |
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How much of the overhaul did you do yourself?
Was the block hot tanked?
Were all the oil passageways checked with air pressure before the engine was assembled? Not just the main galleries. Each individual passageway?
The normal culprit in #1 rod bearing accelerated wear is the 0.070 oil jet for the timing gears but you said you installed a .040 jet.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100
Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php |
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wesk
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Location: Wisconsin
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johnpstoll
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Joined: Aug 19, 2016
Posts: 19
Location: Dent, Minnesota
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| Posted: Thu Jul 06, 2017 7:56 pm Post subject: |
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All the machining was done by the shop. I assembled the engine myself. The pistons, bearings and valves were all new. I checked and blew out all the galleries. I may have missed something. I believe it was hot tanked. I've used this shop before and had no problems. He's an older gentleman and is well known for the work he does.
I did a quick measurement of one of the rod end journals and it doesn't seem to meet the minimum criteria. I'll have to check again after I get the crank out to be sure.
Here's a pic of the front end crank, #1 and #2 rod end bearings. I haven't checked #3 or #4 yet. I've seen enough.
You used the wrong brackets for your photo link: [url] [/url]
use these: [img][/img]
Then per the instructions I included with your album select the size photo you want to post from your album (thumb nail, middle and original full.), right click on it and post the url between the [img][/img] brackets.
This was the link at the top of the page in your photo album that the photo you wanted to post was on and it was the link you tried to place between the brakets.. http://willysmjeeps.com/v2/modules.php?set_albumName=album547&id=Bearings&op=modload&name=gallery&file=index&include=view_photo.php
When you right click the photo and click on "Copy image address" you will get this link: http://willysmjeeps.com/v2/modules/gallery/albums/album547/Bearings.sized.jpg This is the link I placed between the [img][/img]. |
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4x4M38
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Joined: May 30, 2014
Posts: 3447
Location: Texas Hill Country
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wesk
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Joined: Apr 04, 2005
Posts: 16256
Location: Wisconsin
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johnpstoll
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Joined: Aug 19, 2016
Posts: 19
Location: Dent, Minnesota
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| Posted: Thu Jul 06, 2017 9:14 pm Post subject: |
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Thanks for the help Wes. Give me day or two and I'll post a pic of the upper bearings. I'm going to start taking it apart tomorrow.
I've got the tranny cover installed and the latches on. I couldn't get the latches to reach with a new cowl rubber so I had to manufacture new latches to fit.
Was going to drive it in a parade this weekend, maybe next year. Got a few more bugs to work out any way. |
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oilleaker1
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Joined: May 14, 2009
Posts: 971
Location: South Dakota
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| Posted: Fri Jul 07, 2017 6:45 am Post subject: |
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I hate to admit it, but on my first engine re-build, I installed all the rods with the offset backwards. It took out the rod bearings in 105 miles. They looked like yours and there was a pile of bearing material in the oil pan under each rod. I then did as you are doing. It was a 300.00 education. the machinist said: Education is expensive.  My oil pressure did as yours did. Check it out. Oilly |
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johnpstoll
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Joined: Aug 19, 2016
Posts: 19
Location: Dent, Minnesota
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wesk
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Joined: Apr 04, 2005
Posts: 16256
Location: Wisconsin
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johnpstoll
Member
Joined: Aug 19, 2016
Posts: 19
Location: Dent, Minnesota
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| Posted: Sun Jul 09, 2017 11:29 am Post subject: |
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Sorry Wes, When I right click on the photo I get the option of "copy link" so that's what I've pasted. I'll figure it out one of these days.
The rod ends all show wear, but the mains all look good and I can feel that main bearings are smooth. I'll see what the machine shop can tell me this week. |
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4x4M38
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Posts: 3447
Location: Texas Hill Country
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wesk
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Joined: Apr 04, 2005
Posts: 16256
Location: Wisconsin
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wesk
Site Administrator
Joined: Apr 04, 2005
Posts: 16256
Location: Wisconsin
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