| TRANSMISSION LINE BROKE TODAY IN THE GARAGE | |
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randall729 Rookie
Name : randall r. beard Age : 70 Location : upper peninsula of michigan (yooper) Joined : 2015-10-01 Post Count : 13 Merit : 0
![TRANSMISSION LINE BROKE TODAY IN THE GARAGE Empty](https://2img.net/i/empty.gif) | Subject: TRANSMISSION LINE BROKE TODAY IN THE GARAGE Thu Oct 08, 2015 9:13 pm | |
| I had my son remove the engine oil filter. The filter is up above the transmission lines. They were rusty and one of the lines broke. The question is are the lines under any pressure of sorts? I was going to cut out the bad part and repair with braided hose line and clamps? Would this work? | |
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robotennis61 Guru
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Name : robotennis Age : 62 Location : las vegas Joined : 2007-12-17 Post Count : 5562 Merit : 143
![TRANSMISSION LINE BROKE TODAY IN THE GARAGE Empty](https://2img.net/i/empty.gif) | Subject: Re: TRANSMISSION LINE BROKE TODAY IN THE GARAGE Thu Oct 08, 2015 11:09 pm | |
| Well,I used just plain old rubber hose transmission oil compatible. I then cut and flared the trans line and joined them with the rubber hose with two circle clamps/No problem.From what I can gather trans lines are low pressure.But flaring the line is really recommended. | |
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deekster_caddy Master
Name : Derek Age : 52 Location : Reading, MA Joined : 2007-01-31 Post Count : 7717 Merit : 109
![TRANSMISSION LINE BROKE TODAY IN THE GARAGE Empty](https://2img.net/i/empty.gif) | Subject: Re: TRANSMISSION LINE BROKE TODAY IN THE GARAGE Fri Oct 09, 2015 2:43 pm | |
| Those transmission lines are definitely under high pressure. Yes, they _can_ be repaired with hose clamps and hose, but _should_ they? No. At least use a compression fitting to a hose barb, or flare the ends. The lines actually aren't that hard to replace end to end, and that's your better move. It's just 5/16 tubing, cheap and reliable. I've seen fires started from leaking transmission cooler lines hitting the exhaust manifolds, IMO not worth the risk here. | |
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albertj Master
![albertj](https://2img.net/u/3215/30/10/37/avatars/149-76.gif)
Name : Location : Finger Lakes of New York State Joined : 2007-05-31 Post Count : 8676 Merit : 181
![TRANSMISSION LINE BROKE TODAY IN THE GARAGE Empty](https://2img.net/i/empty.gif) | Subject: Re: TRANSMISSION LINE BROKE TODAY IN THE GARAGE Fri Oct 09, 2015 3:31 pm | |
| - robotennis61 wrote:
- Well,I used just plain old rubber hose transmission oil compatible. I then cut and flared the trans line and joined them with the rubber hose with two circle clamps/No problem.From what I can gather trans lines are low pressure.But flaring the line is really recommended.
Hi Robo Rubber hose? Depends on where that line runs. Albertj | |
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robotennis61 Guru
![robotennis61](https://2img.net/u/3215/30/10/37/avatars/342-35.jpg)
Name : robotennis Age : 62 Location : las vegas Joined : 2007-12-17 Post Count : 5562 Merit : 143
![TRANSMISSION LINE BROKE TODAY IN THE GARAGE Empty](https://2img.net/i/empty.gif) | Subject: Re: TRANSMISSION LINE BROKE TODAY IN THE GARAGE Fri Oct 09, 2015 10:59 pm | |
| - albertj wrote:
- robotennis61 wrote:
- Well,I used just plain old rubber hose transmission oil compatible. I then cut and flared the trans line and joined them with the rubber hose with two circle clamps/No problem.From what I can gather trans lines are low pressure.But flaring the line is really recommended.
Hi Robo
Rubber hose? Depends on where that line runs.
Albertj
Hey Al,I replaced both lines going into the Independent rad trans cooler | |
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albertj Master
![albertj](https://2img.net/u/3215/30/10/37/avatars/149-76.gif)
Name : Location : Finger Lakes of New York State Joined : 2007-05-31 Post Count : 8676 Merit : 181
![TRANSMISSION LINE BROKE TODAY IN THE GARAGE Empty](https://2img.net/i/empty.gif) | Subject: Re: TRANSMISSION LINE BROKE TODAY IN THE GARAGE Sat Oct 10, 2015 2:32 pm | |
| Oh. - robotennis61 wrote:
- albertj wrote:
- robotennis61 wrote:
- Well,I used just plain old rubber hose transmission oil compatible. I then cut and flared the trans line and joined them with the rubber hose with two circle clamps/No problem.From what I can gather trans lines are low pressure.But flaring the line is really recommended.
Hi Robo
Rubber hose? Depends on where that line runs.
Albertj
Hey Al,I replaced both lines going into the Independent rad trans cooler | |
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Rickw Guru
Name : Rick Location : Lancaster, MA Joined : 2008-09-13 Post Count : 6282 Merit : 119
![TRANSMISSION LINE BROKE TODAY IN THE GARAGE Empty](https://2img.net/i/empty.gif) | Subject: Re: TRANSMISSION LINE BROKE TODAY IN THE GARAGE Sat Oct 10, 2015 6:39 pm | |
| From what I know one line is a High pressure line and the other is the return line (low pressure).
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LARRY70GS Aficionado
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Name : Larry Age : 67 Location : Oakland Gardens, NY Joined : 2007-01-23 Post Count : 2191 Merit : 149
![TRANSMISSION LINE BROKE TODAY IN THE GARAGE Empty](https://2img.net/i/empty.gif) | Subject: Re: TRANSMISSION LINE BROKE TODAY IN THE GARAGE Sat Oct 10, 2015 7:56 pm | |
| The transmission lines are relatively low pressure. I just installed a new 400 transmission in my 70 GS. I have seen several cases over the last few years of guys pushing the crank and wiping out the thrust bearing in their big block engines. One of the things that can cause that is too much pressure in the cooler circuit of a transmission. It causes the torque converter to push forward on the back of the crank. Anything from a crimped line, or clogged cooler can cause higher pressures. Since I just spent 10K on my engine, I wanted to err on the side of caution, so I plumbed in a digital gauge to read the cooling circuit pressure. It would vary between 18 and 40 psi. If I put the transmission in manual low, the pressure would go to 60 psi with some throttle, but no higher. Good power steering hose and clamps are OK. I had that leading to my cooler for years and it stood up to drag racing. Just use the right hose, not regular fuel line. _________________ 98 Riviera SC3800 All stock except gutted air box. 1970 Buick GS455 Stage1, TSP built 470BBB, 602HP/589TQ Best MPH, 116.06 MPH, Best ET, 11.54 https://www.youtube.com/watch?v=UHCda-t_Jls https://www.youtube.com/watch?v=sfT2tEO4XcU
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