Installing a dipstick guide tube.....
Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
PIA, I forget if slip fit or not.....if not, need use a open end wrench over the tube and hammer on the wrench....
to me one of the true PIA details of anything to do with drivetrain work is the tranny and engine dip tubes....
to me one of the true PIA details of anything to do with drivetrain work is the tranny and engine dip tubes....
Thread Starter
Le Mans Master
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
OK, figured it out with some help from an old school engine builder. The lower guide is insert from the top into the block. It is then tapped down past 1/2" to met the bottom of the dipstick tube when it is inserted.
Now I just need to figure out which dipstick tube to use. The one with the tapper at the top or the longer one for a 20" stick.
Now I just need to figure out which dipstick tube to use. The one with the tapper at the top or the longer one for a 20" stick.
Thread Starter
Le Mans Master
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
I've got two I can use. One is about 7" with a tapered top and an green tip stick. The other is a 10" tube with a requires a 20" black tip stick.
Which one cam with a 327/350hp motor? Anyone got a pic.
Which one cam with a 327/350hp motor? Anyone got a pic.
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Team Owner
Joined: Jul 1999
Posts: 65,492
Likes: 230
From: Orange Park Florida
Long as it works, I have resorted in the past to pouring 5-6 whatever quarts in the pan, and dipping the stick to mark appropriately for whatever length was necessary....just a notch with a dremel will work....
Team Owner
Joined: Sep 2006
Posts: 31,278
Likes: 4,372
From: Westminster Maryland
Hi B68,
This is what I found.
All SB sticks have a black plug.
Original SB tubes change diameter about two inches from the top.
Service Replacement tube is the same diameter the whole way down to the block.
A/C cars have a 4" longer tube.
I don't know if this helps at all!
Regards,
Alan
Thanks 68-69 Manual, NCRS
This is what I found.
All SB sticks have a black plug.
Original SB tubes change diameter about two inches from the top.
Service Replacement tube is the same diameter the whole way down to the block.
A/C cars have a 4" longer tube.
I don't know if this helps at all!
Regards,
Alan
Thanks 68-69 Manual, NCRS
Last edited by Alan 71; Mar 29, 2009 at 05:30 PM.
Thread Starter
Le Mans Master
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
Hi B68,
This is what I found.
All SB sticks have a black plug.
Original SB tubes change diameter about two inches from the top.
Service Replacement tube is the same diameter the whole way down to the block.
A/C cars have a 4" longer tube.
I don't know if this helps at all!
Regards,
Alan
Thanks 68-69 Manual, NCRS
This is what I found.
All SB sticks have a black plug.
Original SB tubes change diameter about two inches from the top.
Service Replacement tube is the same diameter the whole way down to the block.
A/C cars have a 4" longer tube.
I don't know if this helps at all!
Regards,
Alan
Thanks 68-69 Manual, NCRS
What was throwing me off was, that all the catalogs say except hi. perf. My tapered tube you mentioned looks to short that is why I wanted a measurement.
I guess the tube Zip sent me is a A/C car tube. It is alot longer.
Melting Slicks
Joined: Dec 1999
Posts: 2,157
Likes: 0
From: Pensacola FLA
That help, now I just need the lenght of the black tip rod.
What was throwing me off was, that all the catalogs say except hi. perf. My tapered tube you mentioned looks to short that is why I wanted a measurement.
I guess the tube Zip sent me is a A/C car tube. It is alot longer.
What was throwing me off was, that all the catalogs say except hi. perf. My tapered tube you mentioned looks to short that is why I wanted a measurement.
I guess the tube Zip sent me is a A/C car tube. It is alot longer.
Here's some pics of my 68 and 72 dipsticks. The top pic is the 68 dipstick. It is a GM service replacement. The part number is 3981019. I have my original 68 dipstick but it has lot of rust pitting on the loop and is missing the black plug. So I replaced it. The original tube and guide is still in the block.
The 72's dipstick and tube I believe to be original. The part number is 3862730.
Both measure out at 21 3/16". Hope this helps.
Also, the 4" longer tubes are for the 427 with a/c.
68 tube
72 tube
Thread Starter
Le Mans Master
Joined: Sep 2000
Posts: 9,078
Likes: 7
From: DFW TX
Cruise-In VII Veteran
St. Jude Donor '07
That helps alot. My tapered tub is even with the bottom of the valvecover. Looks like the replacement tube matches your 72.
I guess I need to find a longer dipstick. Thanks again for all your help.
I guess I need to find a longer dipstick. Thanks again for all your help.
