Author Topic: Finally solved problem with my Jetaway, with pics  (Read 816 times)

Offline CaddyDaddy61

Finally solved problem with my Jetaway, with pics
« on: September 24, 2017, 11:14:12 AM »
G'day everyone, My Hydro Tranny Specialist friend Tom who is 72 and been rebuilding Hydro Transmissions for the last 40 plus years and who lives an hour north of where I live, rebuilt my Jetaway Transmission in my 61 Cadillac recently, within days of getting my 61 back the Transmission in first and reverse seemed to be slipping, like you would have to accelerate a fair bit to get the Caddy moving along, once in second and other gears it was fine, well except for a continued vibration from somewhere inside.

 So I had to take my 61 Caddy back to Tom, and he was true to his word and said he would solve the issue at no extra cost to me, but did not quite understand the problem till he drove it, and  and even then he said that it could be either the Sprag or even the oil pump, but after testing the oil pump he found out it was about 40psi above the recommended rating (50psi was the average and mine was 90psi) so after he pulled Jetaway out and pulled it down he found out that the Driving & Driven Torus Assembly (most people know this as the torque Converter in most modern transmissions) the fins inside were suffering metal fatigue and breaking up, this he checked when he first rebuilt it, only a couple of weeks ago, and  at first glance seemed ok to proceed with the rebuild, but after me driving the car for the last couple of weeks this slipping of first and reverse just got worse, see the pictures of the damage from the fins once one broke off it sure started to bend and mash all the other fins.

We are waiting on another Torus Fluid Drive or Coupling what ever you want to call it, ok well even Torque Converter to come in so that we can replace it, this looks like itís the reason I am getting this vibration once I go over 50 and also the slipping in first and reverse, canít wait for parts to arrive so that I can cruise in my 61 Caddy again, have two weddings this weekend, one has a 12 Harley Davidson Escort, donít want to miss this one.

Its was great to find my new friend Tom, this time finding the problem, since 2013 and after paying AU$6,000.00 to a Transmission shop that did not know what they were doing, but my 61 Caddy made it across the Nullarbor in 2014 cruising over 7500 miles across Australia towing my 59 Caddy Trailer, then in 2015 I only had reverse and first gears due to the Coupler, another Torus that these fins were too were damaged, but the local Transmission shop didnít know how to fix it, so the Coupler was sent to a specialist (Ron) in Sydney who I think is the only other Hydro Transmission Specialist in Australia, so yes we only have two over here, so I think we are lucky,

Anyway after the second rebuild costing me AU$4800.00 to have to do this again after only 2 years was over the top, and now again because my local Transmission shop donít know what they are doing I went for the 3rd rebuild recently after again only having 1st and reverse, I was so tempted to put in a T400 but I relinquished and got my Jetaway rebuilt by by new friend Tom, for AU$2500.00 this time, I think he felt sorry for me.

I asked Tom if he was passing on all his knowledge to his kids or grandkids and he said that they were not really interested, so I asked him if he would teach me, and he said heíd love too, so I am not sure where I will get the time, or the $$$ to travel an hour there and back, but Iíll find a way and Iím going to do it.

Restoring Hydro Transmissions is an art form, and soon will be lost, very similar to my own profession as a Bookbinder, I restore and repair old books, and it so happens that Tom has a heap of old car Manuals and Parts Lists for Cadillacs, and he showed my one of the 5 that he has and its the ď1955 to 1965 Cadillac Master Parts List 29th EditionĒ Not sure if there is too many of these books around these days, but I asked Tom if for his troubles I could repair he old car manuals, and so I started off with this one, ďThe 1955 to 1965 Cadillac Master Parts List 29th EditionĒ, well I finished it and I have attached the pics of what it looks like now, I went a bit over the top, but finished it in Bison Leather and Oxford Bookcloth with a new spine with raised bands, and Gold tooling of the text and the 61 Caddy logo which I had made. It come up a treat, he sure liked it, now it will last another life time or longer. Canít wait to pick up my 61 Caddy on Thursday, I am sure it will be better than it ever has been before. Smooth, no vibrations and take off like when it was new.
Milt
aka CaddyDaddy
But you can still call me Milt

Offline Externet

Re: Finally solved problem with my Jetaway, with pics
« Reply #1 on: September 24, 2017, 12:22:01 PM »
Very nice work on that very tempting book, Milt.
The torus shows a catastrophic failure like from a piece of metal 'interacting' with the fins.  Was the culprit found ?
5.0L+700R4 wrapped in a '61
V6 Vortec+4L60 wrapped in a '62
5.0L+THM350 wrapped in a '63
2000 LandRover, modified.

Offline CaddyDaddy61

Re: Finally solved problem with my Jetaway, with pics
« Reply #2 on: September 25, 2017, 12:28:24 AM »
Yes metal fatigue on one or more of thoes fins in the Torus, one in the picture, the top half of the fin is missing. Thanks for your comments.
Regards Milt.
Milt
aka CaddyDaddy
But you can still call me Milt

Offline Roger Zimmermann

Re: Finally solved problem with my Jetaway, with pics
« Reply #3 on: September 25, 2017, 02:17:22 AM »
Just in case: I have a NOS driven torus, # 8618712.

Offline CaddyDaddy61

Re: Finally solved problem with my Jetaway, with pics
« Reply #4 on: September 25, 2017, 04:22:04 AM »
Hi Roger, thanks for the offer, he has a Torus coming up from Sydney and ordered one from Fatsco that should arrive today or tomorrow just in case, as I have two weddings to do on the weekend, means a grand in the hand if I turn up to both so lets hope it happens. Thanks for your offer, just so I know, how much would you charge for this, and is this one half or both the driven and the drive?
Milt
aka CaddyDaddy
But you can still call me Milt

Online russ austin

Re: Finally solved problem with my Jetaway, with pics
« Reply #5 on: September 25, 2017, 08:59:15 AM »
I would love to learn how to rebuild a jet away. It sounds like it may be a necessity.
63 series 62 4 window sedan, 63 Superior Hearse
62 Fleetwood

Tucson, AZ  USA

Offline CaddyDaddy61

Re: Finally solved problem with my Jetaway, with pics
« Reply #6 on: September 25, 2017, 03:07:07 PM »
Hi Russ, yes I think if we have an opportunity to learn a lost art and one that could affect us or friends down the track we should take advantage of this now, as these specialists are dropping like flies and no one will be left to repair of service these magnificent Hydro boxes.
Milt
aka CaddyDaddy
But you can still call me Milt

Offline Roger Zimmermann

Re: Finally solved problem with my Jetaway, with pics
« Reply #7 on: September 29, 2017, 01:50:59 AM »
Hi Roger, thanks for the offer, he has a Torus coming up from Sydney and ordered one from Fatsco that should arrive today or tomorrow just in case, as I have two weddings to do on the weekend, means a grand in the hand if I turn up to both so lets hope it happens. Thanks for your offer, just so I know, how much would you charge for this, and is this one half or both the driven and the drive?
The part I have is the one with the small valve (driven). I need CHF 250.- for it (about $ 257.00) plus shipping. Expensive? yes because the part came from the US; in that price the shipping US to Switzerland is included, plus import duties...

Offline Peter.1961

  • 61-62 Cadillacs Owners Group
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Re: Finally solved problem with my Jetaway, with pics
« Reply #8 on: September 30, 2017, 10:09:21 AM »
Milt, Have you picked up the car? I'm sure you must be in Cadillac heaven :-)

Thank you for sharing the story including the missteps along the way. I'm sure many of us are in the same boat, and sometimes it feels like you are the only one who for some reason can't figure it out. It's very encouraging took see that others face the same obstacles (including money lost on shops that don't know what they are doing) - and to see you got it worked out in the end.

I think I have some $4,000 in my hydro at this point and it runs pretty well, can induce some oversteer around a low speed corner, smooth shifts, and cruising at 85-90 for hours.

 (All is well except for an undiagnosed leak ... Had the Taurus cover welded a few years back which fixed it for about a year so I figure it cracked again ... But it's somehow fine as long as I keep the fluid at the lower end of the dip stick range)

Hope you can find the time to learn the trade ... There is so much art in this type of work beyond just following the instructions in the FSM, and the knowledged is fading quickly.

Whenever I'm stumped with my car I go up to a mechanic here in LA. He is in his late sixties, started working in his dad's shop on Cadillacs in the early 1960s and still is at it, still in the same place. Does everything from a brake job to a full rebuild right there in his little shop. After I was struggling for months to get my rebuild carb to run right I drove to his shop, and 45 mins later we had it running perfectly. But same thing, his shop helpers don't really want to learn the trade, his kids don't have an interest in it, so this shop will be gone when he retires.

That book looks gorgeous by the way! What a work of art, blows my mind that people still know how took do this.
ďIf everything seems under control, youíre just not going fast enoughĒ -- Mario Andretti

Offline 62Caddee

  • 61-62 Cadillacs Owners Group
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  • 62 SDV in Carrollton, TX
Re: Finally solved problem with my Jetaway, with pics
« Reply #9 on: October 01, 2017, 11:24:24 PM »
Nice post Milt!  Thanks for sharing and for the pics. 

So whats the deal with these Jetaway trannys?  Is there something drastically different that a normal modern tranny shop can't handle?  The reason I ask is because the Jetaway in my SDV is leaking like crazy, and I suspect that the vibrations while driving are caused by the transmission.

Reading these posts scares me, and makes me cautious about who I'll take mine to for repair when it finally dies.

Do you have to find a "Jetaway specialist," and if so how do you do that?   :-\