The Heirloom Laguna Deux - Redundant in the fleet

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SiC
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Re: The Heirloom Laguna Deux

Post by SiC » Wed Nov 27, 2019 5:27 pm

Oh dear oh dear oh no...

First an update.

The aux belt looked decidedly tired, so I took the decision to splash out on a cambelt, water pump and aux belt change. Four hundred squiggles at the local garage for that work. The garage showed me the belts after and the aux belt was nearly about to snap. Cambelt was noticeably aged too. Most likely original. I think my uncle deliberately never got it done for my grandad in the hope it would break and get him off the road. Dementia has got to him before that happened.
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The vibrations through the steering wheel were fixed by fitting new tyres. Old ones were cheap Chinese deathrings that were starting to crack up.
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Next up was going to the Renault dealer and buy an evaporator temperature sensor.
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This fixes the heating being stuck on full and also gets the Aircon working again. Unfortunately that's low on gas, so sounds quite horrible. Might just disconnect the pressure sensor for now and disable it completely from the climate control.

In case anyone comes across this thread from elsewhere, the evaporator sensor lives in the passenger footwell. Behind this panel
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Up here
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Now this brings us to today.

One problem this car had when it was under my Grandads ownership was it occasionally not starting. I cleaned up the crank sensor and also bent the pins out slightly. This fixed the problem. There is a known fault on this age Renault where the crank sensor appears to fail. Now they do fail but more often it actually is the connector. Renault released a new design connector repair kit to solve this. You can tell it as it's a blue connector rather than black.

I went to GSF car parts and ordered a new one. Unfortunately the crank sensor they supply is the wrong one for this model. The manual gearbox cars is what they supplied, while the automatic gearbox cars is the same sensor but has captive nuts welded on it. This allows the sensor to be installed the otherside. I guess the difference between a clutch flywheel and a torque converter flywheel setup.

Because of this, I decided to just bite the bullet by going to Renault and buying genuine. Off I trotted and £84 later I've got one on order to arrive on Saturday.

At this point traffic was getting heavy, so I made my way home. Not far, probably about 10-15 mins away.

Got to one of several roundabouts on the way back, accelerated over ... First gear ... secon... REVVVVV shit shit shit ... No where to pull over here .... THUMP ... We have a gear again phew.

Meh possibly just me rushing it a bit and being a bit hard on it. Set off again.

Quarter of mile later... Same thing. Drove it back in manual mode and it seems to behave itself for the rest.

BALLS

I'm just over £700 into this car now. Of course that crank sensor I've ordered is a non refundable special order too.

BALLS AGAIN

:(
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Re: The Heirloom Laguna Deux - Trouble lurking

Post by Hooli » Wed Nov 27, 2019 6:11 pm

TADTS.

Don't forget I was given one of these and decided I paid too much.
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Re: The Heirloom Laguna Deux - Trouble lurking

Post by richardthestag » Wed Nov 27, 2019 6:37 pm

ouch!

good luck mon brave
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Re: The Heirloom Laguna Deux - Trouble lurking

Post by SiC » Wed Nov 27, 2019 7:34 pm

Had a good look under the bonnet and couldn't see any obvious oil leaks. I have noticed previously that it has deposited oil on the ground. Noticeable when it had been raining. Engine oil is spot on and had never moved, so definitely not that. However it was on the offside and the gearbox is on the nearside. I put the oil on the ground down to a previous oil change where a dealer probably sucked out the dipstick tube and the filter oil spilling on the undertray when the filter was removed. As the car lived in a level floored garage and barely used since the oil change, there would have been no rain to wash it out.

There has been a ongoing gearbox fault that no garage or gearbox specialist could diagnose. However that's likely just because most places in the UK have zero idea on auto gearboxes. The fault used to be that the gearbox would throw up the warning light and go into limp home mode (3rd gear and reverse only). My suspicion it was one of two common faults - line oil pressure or shifter position switch.

Took it out for a drive again a minute and of course it was as good as gold...

I put it down to:
- Low oil level and driving it hard sucks all the oil up from the bottom and starving it.
- Shifter position switch. Manual mode may help allowing to tell this. When drive was lost, while scanning the dash I didn't notice it out of drive though. Maybe I was resting my arm on the shifter without realising and put pressure on it?
- Just being French. Seems a bit unlikely if it happened twice shortly after each other though.

It has spooked me though. These sort of sudden FTP failures is what originally caused the MGB to fall out of fashion with me...
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Re: The Heirloom Laguna Deux - Trouble lurking

Post by CLINT » Wed Nov 27, 2019 7:43 pm

'dislike'
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Re: The Heirloom Laguna Deux - Trouble lurking

Post by SiC » Wed Nov 27, 2019 7:51 pm

There isn't too many places it can really leak from. As far as I'm aware, the gearbox is pretty much untouched.

Here is an overview of box:
http://www.peugeot206cc.co.uk/repair-20 ... cb04k3.htm

ATF cooling is handled by the heat exchanger on the side. So there isn't any rubber or metal pipes that come out of the box. Only o-rings and the like for sensors + covers.

Of course there is no dipstick either. That would be way too helpful.
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Re: The Heirloom Laguna Deux - Trouble lurking

Post by The Reverend Bluejeans » Thu Nov 28, 2019 9:44 am

SiC wrote:
Wed Nov 27, 2019 7:34 pm

There has been a ongoing gearbox fault that no garage or gearbox specialist could diagnose.
That would have been a one way trip across the bridge for me. Soz.
"He's a spacer, a star chaser.....a spacer. He's a spacer, a star chaser" : Sheila & B Devotion.
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Re: The Heirloom Laguna Deux - Trouble lurking

Post by SiC » Thu Nov 28, 2019 12:20 pm

The Reverend Bluejeans wrote:
Thu Nov 28, 2019 9:44 am
SiC wrote:
Wed Nov 27, 2019 7:34 pm

There has been a ongoing gearbox fault that no garage or gearbox specialist could diagnose.
That would have been a one way trip across the bridge for me. Soz.
You say so yourself that perfectly usable and fixable cars get sent to the bridge all too easily and quickly. The fault it had was causing it to fall into limp mode, but that hasn't resurfaced yet.
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Re: The Heirloom Laguna Deux - Trouble lurking

Post by chadders » Thu Nov 28, 2019 12:38 pm

I guess that the family history has an effect as well.
Without this my MGB would have been broken and replaced by a V8 roadster, TR7/V8 or TR8 convertible. Converting it to a V8 is horrendously expensive, especially as it is as chrome bumper one, and the VW T2 restoration overspend used up my spare toy money.
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Re: The Heirloom Laguna Deux - Trouble lurking

Post by SiC » Thu Nov 28, 2019 1:07 pm

Also being able to waste large amounts of money has an effect too.

Been making the mistake of adding up what owning five cars and their association running, insurance, maintenance, storage costs are...
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