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 Post subject: Re: Rear hatch lock
PostPosted: Thu May 11, 2017 8:14 pm 
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I have checked the motor and the arm which has the cable attached stops in different positions


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 Post subject: Re: Rear hatch lock
PostPosted: Thu May 11, 2017 10:36 pm 
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Location: cape town SA
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I think possibly that your problem lies with the adjustment of the rod/cable. As your original post says correctly, that on opening via the either switch, the motor does one cycle ie opens the clams then closes the clams (one cycle). In between this cycle, the hatch should lift free partially, depending on the strength of the struts. If this initial cycle is not completed (or in your case, interrupted) and needs extra 'input' to get the clams closed, then the rods could be fouling around the locking pin assembly, or the cable is too tight (it must have a decent amount of 'play' on the joint on it's motor peg. Check both sides - both have to work in conjunction...

Just a possible suggestion...


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 Post subject: Re: Rear hatch lock
PostPosted: Tue May 15, 2018 9:59 pm 
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Joined: Wed Jan 17, 2018 9:15 pm
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I'm sure there was a thread on here about adjusting the hatch lock/cams/assembly.

If anyone can point me to it, I would be grateful.

My problem is:

First the spring in the lock barrel was weak and would not return the key to the vertical position. Bit fiddly but I managed to fit a stronger spring.

Changed weak struts.

Changed latch pin aperture rubbers - looks great.

The link rod to the motor cam arm was bodged on and I fixed it. There was so much play in it, that it wasn't releasing the clams sufficiently to release the hatch.

Managed to get it to work.

Except, initially, a small bump (on our beautiful ultra smooth UK roads) would release the hatch. (Every 5 yards).

Bought newish pins.

Still cannot get them adjusted so that they strike a happy balance between opening the hatch and staying closed over the bumps.
So I have released one strut just so I can drive the thing without extra ventilation.

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Rob

Fun - 944 2,7 Lux '89 acquired Nov '17, needing less TLC than when I bought it.
Everyday - Merc C220 '95, Elegance, almost mint
Work and general skip - MK6 Transit - workhorse, bus , van...
Project - 944 C Reg 2.5 n/a. Who tf wrapped it in vinyl?


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 Post subject: Re: Rear hatch lock
PostPosted: Wed May 16, 2018 7:11 pm 
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The release cable might be too tight, or the clams are completely cream crackered

It can be quite a mission to get it all setup right

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 Post subject: Re: Rear hatch lock
PostPosted: Wed May 16, 2018 8:33 pm 
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I'll adjust the threaded end of the connecting rod and see if that works.

If not, where could I get new clams?

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Rob

Fun - 944 2,7 Lux '89 acquired Nov '17, needing less TLC than when I bought it.
Everyday - Merc C220 '95, Elegance, almost mint
Work and general skip - MK6 Transit - workhorse, bus , van...
Project - 944 C Reg 2.5 n/a. Who tf wrapped it in vinyl?


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 Post subject: Re: Rear hatch lock
PostPosted: Wed May 16, 2018 11:13 pm 
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Porsche dealer about £40 each, I will check tomorrow

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 Post subject: Re: Rear hatch lock
PostPosted: Thu May 17, 2018 3:44 pm 
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The motor should make one rotation and stop, like a wiper motor. You need to address this first.

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 Post subject: Re: Rear hatch lock
PostPosted: Thu May 17, 2018 4:28 pm 
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quite right Michael

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 Post subject: Re: Rear hatch lock
PostPosted: Thu May 17, 2018 4:31 pm 
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well i was miles out on price, they have gone up massively in the last year,

its this restoration competition that the OPC did, cleaned out the parts bins

they are now £89.99 each !!!!!!!

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 Post subject: Re: Rear hatch lock
PostPosted: Thu May 17, 2018 8:27 pm 
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white944 wrote:
The motor should make one rotation and stop, like a wiper motor. You need to address this first.


Okay. What determines that?

I looked at the PET sheets and no joy. Have you got a part number for the clams Waylander? I might get them from the US.

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Rob

Fun - 944 2,7 Lux '89 acquired Nov '17, needing less TLC than when I bought it.
Everyday - Merc C220 '95, Elegance, almost mint
Work and general skip - MK6 Transit - workhorse, bus , van...
Project - 944 C Reg 2.5 n/a. Who tf wrapped it in vinyl?


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 Post subject: Re: Rear hatch lock
PostPosted: Fri May 18, 2018 4:41 pm 
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944 538 955 00 LH
944 538 956 00 RH

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 Post subject: Re: Rear hatch lock
PostPosted: Fri May 18, 2018 8:53 pm 
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Joined: Wed Jan 17, 2018 9:15 pm
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Thank you.

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Rob

Fun - 944 2,7 Lux '89 acquired Nov '17, needing less TLC than when I bought it.
Everyday - Merc C220 '95, Elegance, almost mint
Work and general skip - MK6 Transit - workhorse, bus , van...
Project - 944 C Reg 2.5 n/a. Who tf wrapped it in vinyl?


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