Skip to main content
Topic: Allison dip stick tube (Read 3644 times) previous topic - next topic

Re: Allison dip stick tube

Reply #25
Make sure when fixed and ready to install that you are very careful to install the upper attachments such that the tube is not under a bind.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Allison dip stick tube

Reply #26
Make sure when fixed and ready to install that you are very careful to install the upper attachments such that the tube is not under a bind.
Thank you Brett. That part is relatively easy. There are 3 locations the tube is held at with pipe bracket. I may add one more. I would like to put a collar on top of the crack during the repair, but will see. I so want to set my welder to lowest setting and do this myself but, there is a shop down the road from me do this kind of stuff but he is out with family health issue. I'll probably call FT Monday too to see if they have a replacement tube. I don't have a part number.
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

Re: Allison dip stick tube

Reply #27
Not good to weld over something that has been brazed. You would better using MAAP torch and brazing rod.

https://www.youtube.com/watch?v=GfsM9ytzwgw
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Allison dip stick tube

Reply #28
One of my primary tools I regularly use when welding is my sand blast cabinet and the water hose followed with brake cleaner
Don't know if you do any mig/tig with argon as shielding gas but might want to  rethink using brake cleaner.  Poduces Phosgene gas. One whiff and youre a blowed toad.

"Not so  long ago we were a nation of risk takers, riding five million pounds of  thrust straight into space."  Joe Gresh
Chuck Pearson
1996 U295
2018 Can Am X3 TurboRS

Re: Allison dip stick tube

Reply #29
Never seen any residue once sprayed and dried. It flashes off real fast even in low temperature. Ive also had good luck with using it on aluminum as prep rather than alcohol. Will look into it for sure today. The only for sure producer of Phosgene gas I've been aware of was galvanized steel. Always strip it with Muriatic acid which also produced Phosgene gas but a more controlled environment outside in my rocks. Galvanized steel should never be heated above its critical temperature without first being stripped. Yes tig, mig, argon, argon blend gas, helium. Always been more worried about all the exotic tungsten and Iridium tig electrodes that produce radioactive byproducts.
Scott

Re: Allison dip stick tube

Reply #30
Sir you are correct. Been doing it for years and will never again. Thank you for bringing this to my attention. Very possible have actually saved my life.

 The chemical in the brake cleaner is Tetrachloroethylene. When this chemical is exposed with excessive heat and argon (used in MIG and TIG welding) it also produces phosgene.

Scott

Re: Allison dip stick tube

Reply #31
And i didnt know about galvanized welding dangers, thanks for the heads up.  Welding in general is a full assault on the human body.  I reckon a remote air hood is probably a good idea.  Im struggling with the idea, frankly, about whether I should continue doing it.  May be two Powermig 350's with push pull python guns coming on the market soon.  Gettin too old, damnit.  Sure would like to build one more boat though.
"Not so  long ago we were a nation of risk takers, riding five million pounds of  thrust straight into space."  Joe Gresh
Chuck Pearson
1996 U295
2018 Can Am X3 TurboRS

Re: Allison dip stick tube

Reply #32
That multimatic 255 pulse machine was not on my want list but since I now have had it a year I don't want to part with it. Runs real nice. Push pull gun works perfect. Also rigged for .045 steel wire on other nozzle.

Re: Allison dip stick tube

Reply #33
Sir you are correct. Been doing it for years and will never again. Thank you for bringing this to my attention. Very possible have actually saved my life.

 The chemical in the brake cleaner is Tetrachloroethylene. When this chemical is exposed with excessive heat and argon (used in MIG and TIG welding) it also produces phosgene.

Scott
I hope you all are having a great Sunday.
I've done some preliminary cleaning to that tube using brake parts cleanning fluid. However for now it is just sitting there and I have not done anything further. I am waiting to hear from a local shop, hopefully Monday. I assume the brake parts cleanning fluid should be dried and should not cause any issues by Monday/Tuesday? Perhaps I should also clean it with just water and let it dry under Texas Sun?
Thank you,
Al   
Former 2003 GV U295 (6230) (2015 - 2025)
Former 94 GV U225 (2013-2016)

 

Re: Allison dip stick tube

Reply #34
I hope you all are having a great Sunday.
I've done some preliminary cleaning to that tube using brake parts cleanning fluid. However for now it is just sitting there and I have not done anything further. I am waiting to hear from a local shop, hopefully Monday. I assume the brake parts cleanning fluid should be dried and should not cause any issues by Monday/Tuesday? Perhaps I should also clean it with just water and let it dry under Texas Sun?
Thank you,
Al   
That is if your using argon. Brazing with a torch you should be okay. Probably the reason I've never had a problem with it is most of the surfaces I weld on dont collect fluid. If I was now going to tig work on it I might hit it first with a torch to flash off any liquid before applying the argon gas.