Early Oil Lines

[chris_seven]

DIAGRAM 104-00


Does anyone know when Item 19 changed from Aluminium to steel (Part# 901.107.301.12)

This is from an early engine and is completely aluminium including the nuts.



I am also interested to learn more about Item 18 Part # 901.10.10201

His seems to have changed recently and the numbers have altered.

This part is also shown as being used 1969 to 1973



Does anyone know if there was an earlier version and were they ever made in Aluminium?

[John Straub]

Chris, I'm pretty sure the part #18 on my '65 is aluminium.

I'll need to get under and check.

John

[John Straub]

Chris, checked...yes #18 is aluminium. And the short line #19 is the same as pictured.

Hope that helps,

John

[smedley]

Chris, checked...yes #18 is aluminium. And the short line #19 is the same as pictured.

Hope that helps,

John

John,

I'm thinking your lines have been replaced. My survey and inspection experience tells me that all the SWB oil lines, at least up through late'68 were steel crimped ferrules on braided steel lines with blue or orange tracer. Also check the photos in an original Vol. I shop manual......crimped/braided. The only variation would be silver zinc plating on '65-'66 and yellow zinc starting to appear on '67-'68 ferrules. Brad Davis is the REAL expert on this. Brad? What say you??

[smedley]

I found this archival photo in m "originality" file......... crimped steel ferrules on braided steel. Note the really early 901 heater box!

[Frank Beck]

Brad Davis will chime in soon I would imagine.

He should be able to provide clarity and the final word. He's the resident Hoser.

[beh911]

Just looked at a dead nuts completely original ex Parade winning 66 and the lines are crimped ferrule blue tracer

[Frank Beck]

I love to see grown men chase shiny objects but I think one of Chris' primary questions was "when did they change to or from aluminum"? I hardly doubt Chris thinks the first gen lines were aluminum.



No one has answered that yet.

[beh911]

True. Could be the hooch I'm into...

[Brad Davis]

Hey Guys,

The feed line that Chris shows would be for either a '70 or '71 911. 1970 is when TCh started using the all aluminum fittings. Chris what are the date codes on that line? Guessing something in the 70-71 timeframe. Porsche started to use the aluminum collar rebuildable TCh lines in early 1968. Everything before would be the TCh crimped line with the steel fitting and aluminum nut / braided blue tracer hose.

The TCh scavenge line that Chris shows started in mid 1968. They were all steel up until 1972. In '72 the size of the line went from 18mm tube to 22mm tube. With the change to 22mm tube they used an all aluminum hoop line. In '73 they went back to an all steel scavenge hoop line, a crimped line.
An interesting note is that some cars ran a soft TCh line up over the transmission for the scavenge and others had the hard line that looped under the transmission. I am not sure why, but my suspicion is that the sportomatic cars used the hard line with the loop as the sporto also had a couple smaller lines that followed the same path under the transmission.

Thanks,

Brad