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keith808 Samba Member
Joined: August 19, 2004 Posts: 132 Location: California
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Posted: Tue Jan 22, 2019 11:53 am Post subject: Bearing crankshaft not seating |
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Hi
I have not built engine in years.
Running into an issue. I checked online, MUIR, and Wilson How to rebuild vw engine
Single port stock engine. all original parts
My problem is When installing the crankshaft assembly all at once, the bearing by the oil slinger will not seat, it spins. The other bearings are in and seated. I have marked them all to make sure the holes are lining up.
When I install the crank assemble at an slight angle, putting the oil slinger/crank pulley side in first the bearing seats but then as i put down the flywheel side and the bearings fit into place the bearing by the oil slinger pops out and is not seated any more.
Any ideas on what i am missing????
I have tried it with distributor out and in but no difference . |
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mark tucker Samba Member
Joined: April 08, 2009 Posts: 23937 Location: SHALIMAR ,FLORIDA
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Posted: Tue Jan 22, 2019 1:01 pm Post subject: Re: Bearing crankshaft not seating |
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the pin? or possiably the pin on another bearing is holding the bearing up some...dont tighten it up till you figure it out or get help from a local that can put eyes on it for you. |
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FreeBug Samba Member
Joined: March 12, 2012 Posts: 4278 Location: deepest, darkest Switzerland
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Posted: Tue Jan 22, 2019 2:14 pm Post subject: Re: Bearing crankshaft not seating |
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Is the number 2 bearing shell the proper size? Absolutely sure? Is it fully seated? It sounds like the crank is "rocking" on something in the middle... |
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keith808 Samba Member
Joined: August 19, 2004 Posts: 132 Location: California
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Posted: Tue Jan 22, 2019 3:09 pm Post subject: Re: Bearing crankshaft not seating |
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pins are all good. no blemishes or mushrooming. holes are all correct on bearings
Yes it is 99 percent. it is rocking. you can see it pivoting on or near the 2nd bearing or gears. Can't figure it |
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UK Luke 72 Samba Member
Joined: September 07, 2011 Posts: 2867 Location: Little Britain
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Pruneman99 Samba Member
Joined: February 22, 2012 Posts: 5013 Location: Oceanside
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Posted: Tue Jan 22, 2019 3:28 pm Post subject: Re: Bearing crankshaft not seating |
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Are you sure the bearings are installed correctly on the crank? Pins are offset towards the flywheel. |
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[email protected] Samba Member
Joined: August 15, 2002 Posts: 4394 Location: Brew City
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Posted: Tue Jan 22, 2019 3:28 pm Post subject: Re: Bearing crankshaft not seating |
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keith808 wrote: |
Hi
I have not built engine in years.
Running into an issue. I checked online, MUIR, and Wilson How to rebuild vw engine
Single port stock engine. all original parts
My problem is When installing the crankshaft assembly all at once, the bearing by the oil slinger will not seat, it spins. The other bearings are in and seated. I have marked them all to make sure the holes are lining up.
When I install the crank assemble at an slight angle, putting the oil slinger/crank pulley side in first the bearing seats but then as i put down the flywheel side and the bearings fit into place the bearing by the oil slinger pops out and is not seated any more.
Any ideas on what i am missing????
I have tried it with distributor out and in but no difference . |
If nothing like the slinger or one of the rods is interfering with it seating, it's possible(however unlikely but worth checking) if the nose is bored to a larger size that the other main bearing saddles. Or the nose bearing could be the incorrect diameter. Have you tried seating the nose bearing by itself? Its easy enough to remove and check. _________________ Please "LIKE" us on facebook to see what we are working on.
https://www.facebook.com/mofoco?ref=ts&fref=ts
www.mofoco.com
Cylinder Head Reference Sheet |
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modok Samba Member
Joined: October 30, 2009 Posts: 26744 Location: Colorado Springs
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Posted: Tue Jan 22, 2019 7:41 pm Post subject: Re: Bearing crankshaft not seating |
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thing not fit in hole right?
Measure the OD of the bearing.
Measure the ID of the hole.
Compare to specifications. |
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rugblaster Samba Member
Joined: March 31, 2016 Posts: 1163 Location: San Angelo, Texas
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Posted: Tue Jan 22, 2019 11:07 pm Post subject: Re: Bearing crankshaft not seating |
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Have you tried it without the distributor drive in? You mentioned with and without the distributor, but what about the drive? _________________ '69 Karmy, '69 Camper, Meyers clone, '65 drag bug, 10.78 @ 128 (sold it) '51 Dodge farm truck,
'09 MB E350 '18 MB E400, '65 Plymouth Valiant convertible and a '19 Ford F250 King Ranch (nicer, but dirty, farm truck)
VWoA factory trained line tech 75 till 90 or so
ASE Master Certification
VWoA Assoc. of Quality Technicians inductee (One of 25 in the five state southwest region)
La Confrerie des Chevaliers du Tastevin (San Angelo Chapter)
TCU ......GO FROGS!!!!!! |
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FreeBug Samba Member
Joined: March 12, 2012 Posts: 4278 Location: deepest, darkest Switzerland
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Posted: Wed Jan 23, 2019 4:52 am Post subject: Re: Bearing crankshaft not seating |
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I'd take out the n°2 bearing, install the crank, and spin it, measuring run-out on that journal.
The crank could be bent. Got access to a press? |
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keith808 Samba Member
Joined: August 19, 2004 Posts: 132 Location: California
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Posted: Wed Jan 23, 2019 9:26 am Post subject: Re: Bearing crankshaft not seating |
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Thank you. I will do what you guys recommended this morning and post back |
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