1982 GTC project gumtree

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Re: 1982 GTC project gumtree

Post by scimjim » Mon Jul 10, 2017 9:37 am

I thought that all of the brake system on a GTC were metric apart from the rear wheel cylinders?


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Re: 1982 GTC project gumtree

Post by greeny » Mon Jul 10, 2017 10:43 am

scimjim wrote:I thought that all of the brake system on a GTC were metric apart from the rear wheel cylinders?

Same as a 6a so its a bit of a mut.


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Re: 1982 GTC project gumtree

Post by Roger Pennington » Mon Jul 10, 2017 11:27 am

Yes, as I mentioned earlier, that was my understanding too.


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Re: 1982 GTC project gumtree

Post by ronnie » Mon Jul 10, 2017 11:58 am

I can confirm Metric threads on Lockhead master cylinder and brake bias valve.

Just made new pipes up yesterday for my older S-reg SE6 and only found this out AFTER having fitted Imperial nuts for the brake bias valve !

Metric - Metric between the master cyl and brake bias
Metric - Imperial between brake bias and flexi pipes



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Re: 1982 GTC project gumtree

Post by ard126k » Mon Jul 10, 2017 12:38 pm

The changeover point on mine seems to be the flexi to the rear axle which is imperial.


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Re: 1982 GTC project gumtree

Post by scimjim » Mon Jul 10, 2017 12:50 pm

That's where I understood the change to be (on a GTC) - from Steve Cork's 404 thread. Metric threads were introduced as a rolling program according to a Reliant service bulletin.


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Re: 1982 GTC project gumtree

Post by Corky » Tue Jul 11, 2017 3:32 am

Here are the only imperial connections on the system :-

Image

And this is how the copper pipes look :-

Image
Image


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Re: 1982 GTC project gumtree

Post by scimjim » Tue Jul 11, 2017 6:57 am

So basically the tee piece on the back axle is metric in and imperial out. Everything forward is metric, everything aft/outboard is imperial.


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Re: 1982 GTC project gumtree

Post by scimmy_man » Tue Jul 11, 2017 9:05 am

scimjim wrote:That's where I understood the change to be (on a GTC) - from Steve Cork's 404 thread. Metric threads were introduced as a rolling program according to a Reliant service bulletin.
that means whichever bin we took the bits out of?


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Re: 1982 GTC project gumtree

Post by scimjim » Tue Jul 11, 2017 9:18 am

:-)


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Re: 1982 GTC project gumtree

Post by philhoward » Tue Jul 11, 2017 11:37 am

My Dad had. 77 6a with a full Girling braked rear axle..


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Re: 1982 GTC project gumtree

Post by ard126k » Wed Jul 19, 2017 12:43 am

Small milestone reached today when I took the car down off its stands and moved it from the garage under its own power. A bit reluctant to go at first, but after I poured two pints of ATF into the box all was well and I seem to have at least one forward and one reverse gear. So that's a relief. I'll have a look at the rear brakes next I think, handbrake is useless and I'd better investigate the brake unions (!)
While I was getting ready to put the seat in place I noticed that only the driver's has a pressure sensor in it. Peter Freeman's wiring diagram shows both seats should have them, and the car has wiring for two, but the passenger one isn't there. I can't see any point in having a driver's one (there's generally a driver present, eh?) so I think I'll see if it's possible to move the sensor from one side to t'other. How hard can it be?


1971 SE5 1977 SE6 1982 GTC

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Re: 1982 GTC project gumtree

Post by ard126k » Wed Jul 19, 2017 8:34 pm

Decided to have a look inside driver's door today to see why the inside latch lever was stiff. Think I found the reason -
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Why would anyone route the linkage out through a slot in the door then back in through a hole next the lock? Answers please on the back of a blank cheque to me.


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Re: 1982 GTC project gumtree

Post by ard126k » Sat Jul 22, 2017 10:36 am

Wondering if the door mirrors are supposed to move smoothly? This one does a little jerk when I move the switch then stops. It gets there eventually but it's hardly elegant!


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Re: 1982 GTC project gumtree

Post by Corky » Sat Jul 22, 2017 10:42 am

Depends which mirrors it's got. Some are smooth, some are jerky.

I think it's the type with the electromagnets that are jerky. The SS1 style move smoothly (ish).


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