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areabaylove
Samba Member
Joined: April 28, 2015
Posts: 94
Location: Alameda
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 Posted: Fri Apr 13, 2018 10:48 am Post subject: Does It matter the direction of the push tube rods and tubes? |
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Hey y'all again back with an other question here! So my tubes are all in the same orientation but I don't recall which and came from the block or the head. Same goes for the push rods themselves, I do notice that one end has lines? Thanks a million
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owner of a 1980 two door rabbit diesel, part owner of 1971 bay window type 2...... you guys or girls are the BEST  |
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raygreenwood
Samba Member
Joined: November 24, 2008
Posts: 21520
Location: Oklahoma City
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| Posted: Fri Apr 13, 2018 11:01 am Post subject: Re: Does It matter the direction of the push tube rods and tubes? |
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Which type of engine are we talking about? Type 1 and type 4 engine pushrod tubes are totally different and so are the pushrods.
Pictures of the pushrod "lines" please.
I am going to "assume" you have a type 4 engine. The shiny lines or bands that appear on type 4 pushrods....are not supposed to be there. They are wear marks that are caused by the pushrod retaining wire being bent or improperly installed and wear against the pushrods. Eventually this can almost wear through a pushrod.
The pushrod tube direction....again...on type 4...the larger end with the narrow o-ring groove is the cylinder head end.
Ray |
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SGKent 
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Fri Apr 13, 2018 11:29 am Post subject: Re: Does It matter the direction of the push tube rods and tubes? |
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Put the seams up. Lessens the chance of leaking. T4 pushrods have different size ends so I am guessing you have a T1 style motor in which case both ends are the same. if they are T1 pushrod tubes then you can gently stretch them back out a little from where they have compressed before using them again.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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raygreenwood
Samba Member
Joined: November 24, 2008
Posts: 21520
Location: Oklahoma City
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| Posted: Fri Apr 13, 2018 11:34 am Post subject: Re: Does It matter the direction of the push tube rods and tubes? |
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| SGKent wrote: |
| Put the seams up. Lessens the chance of leaking. T4 pushrods have different size ends so I am guessing you have a T1 style motor in which case both ends are the same. if they are T1 pushrod tubes then you can gently stretch them back out a little from where they have compressed before using them again. |
Actually...you are spot on....I missed it in his sig line...71 bus.... 
Sorry...drove too late last night!
Ray |
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areabaylove
Samba Member
Joined: April 28, 2015
Posts: 94
Location: Alameda
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| Posted: Fri Apr 13, 2018 12:39 pm Post subject: Re: Does It matter the direction of the push tube rods and tubes? |
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Definitely both ends look to be the same diameter. I guess now I'm more curious about the pushrods themself, does their direction matter
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owner of a 1980 two door rabbit diesel, part owner of 1971 bay window type 2...... you guys or girls are the BEST |
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tristessa
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Joined: April 07, 2004
Posts: 3992
Location: Portland, OR
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| Posted: Fri Apr 13, 2018 1:32 pm Post subject: Re: Does It matter the direction of the push tube rods and tubes? |
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| areabaylove wrote: |
| Definitely both ends look to be the same diameter. I guess now I'm more curious about the pushrods themself, does their direction matter |
I've never known it to matter, but I've never seen a pushrod with "lines" on one end either. Pictures would be a big help... |
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areabaylove
Samba Member
Joined: April 28, 2015
Posts: 94
Location: Alameda
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| Posted: Sat Apr 14, 2018 10:29 am Post subject: Re: Does It matter the direction of the push tube rods and tubes? |
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one end has them the other does not
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owner of a 1980 two door rabbit diesel, part owner of 1971 bay window type 2...... you guys or girls are the BEST |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50353
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| Posted: Sat Apr 14, 2018 10:47 am Post subject: Re: Does It matter the direction of the push tube rods and tubes? |
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| I don't think it matters which end of the pushrod goes where, as these pushrods don't show wear in normal use and thus do not "mate" with either the lifters or rockers. |
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raygreenwood
Samba Member
Joined: November 24, 2008
Posts: 21520
Location: Oklahoma City
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| Posted: Sat Apr 14, 2018 10:48 am Post subject: Re: Does It matter the direction of the push tube rods and tubes? |
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| areabaylove wrote: |
| one end has them the other does not |
That looks like a clamp mark where the pushrod body was held while the end was pushed in.
I have not done enough type 1 to know if that mark is common...but it would not be uncommon to find a mark like that on aftermarket pushrods that were a cut to length or custom made. Ray |
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914guy
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Joined: September 08, 2008
Posts: 167
Location: Cincinnati, Ohio
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| Posted: Sat Apr 14, 2018 1:32 pm Post subject: Re: Does It matter the direction of the push tube rods and tubes? |
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| Do check the o ring lands for the o rings to make sure they are not corroded. Some of ours had that and leaked. |
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