Cleaning Trannies?, These ones lived thru the barn fire |
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
Cleaning Trannies?, These ones lived thru the barn fire |
pete-stevers |
Oct 22 2017, 01:39 PM
Post
#1
|
saved from fire! Group: Members Posts: 2,642 Joined: 10-October 04 From: Abbotsford,BC, Canada Member No.: 2,914 Region Association: Pacific Northwest |
I have a couple of transmissions that lived thru the barn fire
They are all black with soot ... I AM thinking oven cleaner... any other thoughts (IMG:style_emoticons/default/idea.gif) |
iankarr |
Oct 22 2017, 02:28 PM
Post
#2
|
The wrencher formerly known as Cuddy_K Group: Members Posts: 2,481 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region |
Brake cleaner. Expect to go through 5-6 cans. Mineral spirits works great, but takes more effort. Are you planning on taking the gear stack out, breaking the box down and replacing the seals? If so, you can dip the cases or soda blast. I'd probably stay away from oven cleaner, as it may pit the box if you're not careful.
|
porschetub |
Oct 22 2017, 03:02 PM
Post
#3
|
Advanced Member Group: Members Posts: 4,705 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
Block off the case breather with duct tape,brush non caustic degreaser on and waterblast them.
A big NO to the oven cleaner as mentioned,how these clean up will most likely indicate how hot they got,@ minimum I would replace the input shaft and output shaft seals. |
Dr Evil |
Oct 22 2017, 08:22 PM
Post
#4
|
Send me your transmission! Group: Members Posts: 23,002 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
Oven cleaner is fine, I have run tests with it over months with no pitting. Old wives tail. Likely the best fit for your situation. You should pull the stack and wash the cases thoroughly. If I can help, let me know. What ever I have to give is yours.
|
914_teener |
Oct 22 2017, 08:38 PM
Post
#5
|
914 Guru Group: Members Posts: 5,205 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
Block off the case breather with duct tape,brush non caustic degreaser on and waterblast them. A big NO to the oven cleaner as mentioned,how these clean up will most likely indicate how hot they got,@ minimum I would replace the input shaft and output shaft seals. If one water blasts it and doesn't pull the stack.....the gears will rust. Ask me how I know. |
Dr Evil |
Oct 22 2017, 08:47 PM
Post
#6
|
Send me your transmission! Group: Members Posts: 23,002 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
Block off the case breather with duct tape,brush non caustic degreaser on and waterblast them. A big NO to the oven cleaner as mentioned,how these clean up will most likely indicate how hot they got,@ minimum I would replace the input shaft and output shaft seals. If one water blasts it and doesn't pull the stack.....the gears will rust. Ask me how I know. Water will get in the side seals and other parts under pressure. Pressure wash is a bad idea unless disassembling. |
falcor75 |
Oct 23 2017, 04:59 AM
Post
#7
|
Senior Member Group: Members Posts: 1,579 Joined: 22-November 12 From: Sweden Member No.: 15,176 Region Association: Scandinavia |
Ice pellet blastning should work, havnt tried it myself yet tho.
|
McMark |
Oct 23 2017, 06:11 AM
Post
#8
|
914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
If not disassembling, slow, tedious, meticulous cleaning.
Pull the stack and diff, then soda blast. Then you only have to manually clean the intermediate plate. Plus you can inspect the internals in case something should be attended to now (perhaps something melted inside?). |
76-914 |
Oct 23 2017, 09:09 AM
Post
#9
|
Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,508 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California |
Oven cleaner is fine, I have run tests with it over months with no pitting. Old wives tail. Likely the best fit for your situation. You should pull the stack and wash the cases thoroughly. If I can help, let me know. What ever I have to give is yours. (IMG:style_emoticons/default/av-943.gif) (IMG:style_emoticons/default/lol-2.gif) (IMG:style_emoticons/default/shades.gif) |
Eric_Shea |
Oct 23 2017, 09:29 AM
Post
#10
|
PMB Performance Group: Admin Posts: 19,278 Joined: 3-September 03 From: Salt Lake City, UT Member No.: 1,110 Region Association: Rocky Mountains |
Walnut
|
914_teener |
Oct 23 2017, 09:31 AM
Post
#11
|
914 Guru Group: Members Posts: 5,205 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
.....and bake at 450 degrees until done (IMG:style_emoticons/default/smile.gif)
|
bretth |
Oct 23 2017, 10:53 AM
Post
#12
|
Senior Member Group: Members Posts: 899 Joined: 23-June 15 From: Central TX Member No.: 18,882 Region Association: Southwest Region |
Wouldn't the whole case be warped depending on how close the cases were to the fire?
|
914_7T3 |
Oct 23 2017, 03:10 PM
Post
#13
|
Please forgive me, I'm new to all of this! Group: Members Posts: 1,853 Joined: 3-April 17 From: Los Angeles, CA Member No.: 20,991 Region Association: Southern California |
Block off the case breather with duct tape,brush non caustic degreaser on and waterblast them. A big NO to the oven cleaner as mentioned,how these clean up will most likely indicate how hot they got,@ minimum I would replace the input shaft and output shaft seals. If one water blasts it and doesn't pull the stack.....the gears will rust. Ask me how I know. Water will get in the side seals and other parts under pressure. Pressure wash is a bad idea unless disassembling. Oooops, looks like I just screwed that up! (IMG:style_emoticons/default/sad.gif) Now going to add a rebuild to my resto to do list. Had a few small random issues with first gear and the down shift to second at times, so now whether or not to split open the transmission case has just been decided. |
whitetwinturbo |
Oct 23 2017, 07:30 PM
Post
#14
|
Honey, does this wing make my ass look fat? Group: Members Posts: 1,391 Joined: 22-October 11 From: Newport Beach/Kalefornya/USA Member No.: 13,704 Region Association: Southern California |
Test ZEP 505 on small sample.... (IMG:style_emoticons/default/smile.gif)
|
Mikey914 |
Oct 24 2017, 07:12 AM
Post
#15
|
The rubber man Group: Members Posts: 12,678 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
Do look for crystallization of the aluminum. Of you see this you will probably not want to bother cleaning as the case will be shot. The internals should be fine.
No point in cleaning if it's garbage. |
Mikey914 |
Oct 24 2017, 07:14 AM
Post
#16
|
The rubber man Group: Members Posts: 12,678 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None |
The only reason I mention this is I was with Rob and Chris yesterday and saw how hot the fires burned, aluminum will harden, but once the metal gets too hot it's done.
|
914_teener |
Oct 24 2017, 07:51 AM
Post
#17
|
914 Guru Group: Members Posts: 5,205 Joined: 31-August 08 From: So. Cal Member No.: 9,489 Region Association: Southern California |
Ah....the tranney case is magnesium.
|
iankarr |
Oct 24 2017, 09:00 AM
Post
#18
|
The wrencher formerly known as Cuddy_K Group: Members Posts: 2,481 Joined: 22-May 15 From: Heber City, UT Member No.: 18,749 Region Association: Intermountain Region |
I have a spare case if anyone needs one.
|
Dr Evil |
Oct 24 2017, 06:07 PM
Post
#19
|
Send me your transmission! Group: Members Posts: 23,002 Joined: 21-November 03 From: Loveland, OH 45140 Member No.: 1,372 Region Association: MidAtlantic Region |
|
pete-stevers |
Oct 24 2017, 09:26 PM
Post
#20
|
saved from fire! Group: Members Posts: 2,642 Joined: 10-October 04 From: Abbotsford,BC, Canada Member No.: 2,914 Region Association: Pacific Northwest |
Thanks Mike!
one of these trannys was rebuilt at a clinic the other was a good tranny from the 914 that burnt ... They both where out on a steel shelf a ways from the heat of the fire, there was a wooden table close by that was blackened but was not burnt.. So the order of business is just to take the black crap off of them... But I see pressure washing won't be a very good way... I dont really want to disassemble them... but we will see |
Lo-Fi Version | Time is now: 7th June 2024 - 11:44 PM |
All rights reserved 914World.com © since 2002 |
914World.com is the fastest growing online 914 community! We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ... |