Author |
Message |
t0ne321 Samba Member
Joined: February 06, 2006 Posts: 119 Location: San Diego, Ca.
|
Posted: Fri Dec 04, 2015 5:18 pm Post subject: Re: Nightmare before Christmas — Teflon buttons |
|
|
So I had a chance to undo the engine last night. This is what I found:
First off I went to harbor freight and bought myself a little magnetic stand so I could check the runout on the crank. It cost me around 13 dlls, and I used a dial indicator I had already at home.
So I pulled the case half with the flywheel still torqued to the crank. I removed the 1st and 2nd connecting rods as of right now and the journals look good. No heavy pitting or damage.
The cam bearings seem to have some weird wear patterns. Can anyone tell me if this is normal?
Other than that the cam and followers look like they broke in well.
FOUND MY BUTTONS
hmmm
This is the rod from the piston that broke. Notice the uneven wear. Hopefully it didnt bend
Next step is to tear it all apart and CLEAN CLEAN CLEAN _________________ my 1965 sedan > yo mama. |
|
Back to top |
|
|
t0ne321 Samba Member
Joined: February 06, 2006 Posts: 119 Location: San Diego, Ca.
|
Posted: Fri Dec 04, 2015 5:47 pm Post subject: Re: Nightmare before Christmas — Teflon buttons UPDATED W/PI |
|
|
and heres a video of a test run to check runout. I haven't removed the center bearing so im not surprised it doesnt move, but this is this the correct way to check this?
Link
_________________ my 1965 sedan > yo mama. |
|
Back to top |
|
|
scotth17 Samba Member
Joined: January 30, 2012 Posts: 335 Location: Bedford Texas
|
Posted: Fri Dec 04, 2015 7:46 pm Post subject: Re: Nightmare before Christmas — Teflon buttons UPDATED W/PI |
|
|
That's a shitload of weight anyone could do without! Why re-invent the wheel? Don't most pistons come with retainers? Use em..... |
|
Back to top |
|
|
Boolean Samba Member
Joined: January 19, 2012 Posts: 1712 Location: Stockholm
|
Posted: Fri Dec 04, 2015 9:26 pm Post subject: Re: Nightmare before Christmas — Teflon buttons UPDATED W/PI |
|
|
t0ne321 wrote: |
and heres a video of a test run to check runout. I haven't removed the center bearing so im not surprised it doesnt move, but this is this the correct way to check this?
Link
|
Hard to see where it's touching, but it seems alright. You have to remove the center bearing to get useable measurements of course. Then try it with #1 and #3 bearings as well as #1 and #4. _________________ I strive for perfection. Excellence will not be tolerated!
Build thread here:
http://www.thesamba.com/vw/forum/viewtopic.php?t=529379 |
|
Back to top |
|
|
fastfil Samba Member
Joined: November 25, 2006 Posts: 356 Location: Sunshine Coast, AUS
|
Posted: Fri Dec 04, 2015 11:32 pm Post subject: Re: Nightmare before Christmas — Teflon buttons UPDATED W/PI |
|
|
Make sure you don't mix those lifters up. _________________ "...swingaxle...transaxle...same diff." |
|
Back to top |
|
|
t0ne321 Samba Member
Joined: February 06, 2006 Posts: 119 Location: San Diego, Ca.
|
Posted: Wed Jan 27, 2016 12:17 am Post subject: Re: Nightmare before Christmas — Teflon buttons UPDATED W/PI |
|
|
So I went ahead and started building it back up after everything checked out. Bought a set of Silverline bearings for the rods and the fit seems a bit odd.
Is this normal? Two of the rods seem to fit normally and the other two have this weird unevenness on the sides. I remember my last bearings fit completely flush on the sides. They are torqued down to 24 lbs. Should I just return them and get a set of Mahles? those were the ones I had on them before. _________________ my 1965 sedan > yo mama. |
|
Back to top |
|
|
modok Samba Member
Joined: October 30, 2009 Posts: 26743 Location: Colorado Springs
|
Posted: Wed Jan 27, 2016 3:06 am Post subject: Re: Nightmare before Christmas — Teflon buttons UPDATED W/PI |
|
|
Mahle are ok but it's a bi-metal bearing, fine for a stock rebuild but not usually used for high performance stuff.
Use clevite rod bearings, part number: 780p |
|
Back to top |
|
|
t0ne321 Samba Member
Joined: February 06, 2006 Posts: 119 Location: San Diego, Ca.
|
Posted: Wed Jan 27, 2016 2:05 pm Post subject: Re: Nightmare before Christmas — Teflon buttons UPDATED W/PI |
|
|
ok. This is the worst one of the four. Seems like the bearing shells are sitting uneven inside the rod. I moved the bearing around on the other 3 rods and it's always this pair of bearings that are odd.
_________________ my 1965 sedan > yo mama. |
|
Back to top |
|
|
Boolean Samba Member
Joined: January 19, 2012 Posts: 1712 Location: Stockholm
|
Posted: Wed Jan 27, 2016 3:24 pm Post subject: Re: Nightmare before Christmas — Teflon buttons UPDATED W/PI |
|
|
The sideways difference is not an issue unless the bearing edge contacts the crank radius.
The surface finish on the bearing shells look awful though... _________________ I strive for perfection. Excellence will not be tolerated!
Build thread here:
http://www.thesamba.com/vw/forum/viewtopic.php?t=529379 |
|
Back to top |
|
|
mcmscott Samba Member
Joined: March 12, 2010 Posts: 4848 Location: sanger ca
|
Posted: Wed Jan 27, 2016 3:37 pm Post subject: Re: Nightmare before Christmas — Teflon buttons UPDATED W/PI |
|
|
I have had terrible results with silverline rod bearings, their main bearings are usually good tho _________________ There are no stupid questions, only stupid people,
68 Ghia
67 T-1
65 Notch
02 Mexican beetle
74 Thing
15 Long travel rail
07 Nomad
05 f-250 |
|
Back to top |
|
|
t0ne321 Samba Member
Joined: February 06, 2006 Posts: 119 Location: San Diego, Ca.
|
Posted: Wed Jan 27, 2016 4:31 pm Post subject: Re: Nightmare before Christmas — Teflon buttons UPDATED W/PI |
|
|
Thanks for the input guys. I was a little worried about the fit but everyone I've asked really isn't too concerned with it so I guess I'll put it together.
I haven't thoroughly cleaned all the parts after I disassembled the engine, I just sorta cleaned them out, and a bit of grit got into the bearings and scored them a little. They don't look as bad as the pic makes it seem, though.
I'll keep posting pics as I continue assembling. I'm gonna drop the tranny in the next few days and send it to to get the R/p changed out to a 3.88. First gear was a joke and my top speed was 55 before the engine sounded too winded for me. 65 sedan swing axle. _________________ my 1965 sedan > yo mama. |
|
Back to top |
|
|
|