Grapes
Sr. Member
Posts: 218
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« on: August 25, 2020, 05:20:09 pm » |
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Hi! Sorry images seem to be huge :S I knew I needed to make them small but this wasn't small enough apparently... So I removed the images. Sooo finally had a good look under the car (I know, should've done that when I bought it...) It's definitely leaking from the water pump but the pictures that I took from the pump aren't great. The video just shows what's dripping down the ...carter?: https://youtu.be/rBlWULlsLQsI checked the manual and the replacement of the pump seems to be really straight forward; drain system, bolt off, bolt on. Roy's website's alternative list mentions the Dolz T116 which is nicely available so I'm planning to buy that. Any things I need to pay attention to? Or is it really just a matter of drain, disconnect, bolt off, bolt on, connect, fill? (Are there e.g. no pastes required that need to be applied?) Can this be done as a roadside repair if I buy some ramps? They seem like an easier and safer tool than a jack and stands but I have no idea if that's true. Also if I buy enough supplies that I will likely need again in the future I can get free shipping so additional suggestions are welcome (grease?, Fluids?, Spare lights? etc. I have hardly anything yet)
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« Last Edit: August 25, 2020, 11:29:38 pm by Grapes »
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roy4matra
YaBB God
Posts: 1213
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« Reply #7 on: September 03, 2020, 06:04:51 pm » |
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I've got a good quantity of "ready-to-use silicated OAT lobrid antifreeze" ...
This is for modern cars, as Peter states. OAT stands for Organic Acid Technology, is red in colour and is not suitable for older car systems such as the Murena. These need IAT, blue in colour which stands for Inorganic Additive Technology. The modern stuff can attack parts of the system in an old vehicle. There is a third type HOAT which is Hybrid Organic Acid Technology which is Turquoise in colour, but unless it was recommended by the manufacturer (obviously not in the case of the Murena) I would ignore that one altogether. 2. Flushing the system • What's the easiest way to completely flush the system? Can I simply flush it by draining it, replacing the pump, filling it with some sort of cleaning product and distilled water and draining it again? Or does this car need a different procedure? I've watched a few videos and they all followed more or less this procedure but some talked about tap water as well after the cleaning product so that confused me a bit. • Also what to use for cleaning the system?
There is no easy way to flush the system on these cars because of the remote location of the radiator compared to the engine and the fact that the pipes linking them go under the car and are therefore lower. Plain water is fine to flush with, but you must never leave any plain water in any system with aluminium parts such as the Murena uses for the cylinder head, for a long length of time because the aluminium and water react and the sludge will block small passages such as in the radiator. You can buy special fluid for radiator flushing but with any system you need to flush in the opposite way to normal flow, so you would have to strip the radiator out of the car to flush it properly, and similarly with the metal pipes you need to remove them to clean out. The only way to really clean out the engine block is to remove it from the car, then remove all the core plugs. If you are totally stripping to overhaul the engine, then by all means get the block cleaned at the same time. If you can see that the cooling system has a lot of muck in it, then it might be the time to clean it out. Roy
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« Last Edit: September 03, 2020, 06:07:34 pm by roy4matra »
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Anders Dinsen
Administrator
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Posts: 3199
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« Reply #11 on: September 12, 2020, 07:20:38 am » |
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I'll recommend a proper extraction tool set for removing the bolt to prevent damage to the block. I have one of these and it has already saved me in a difficult situation. I think you can probably find something similar: https://www.biltema.dk/varktoj/handvarktoj/gevindskarersat/sat-med-skrueudtrakkere-25-dele-2000040658I have checked my reproduction of the original parts manual and it doesn't show the size or type of the bolts. They have a Talbot part number 80625211 but it's not the same as on the 2.2 which I could measure for you. So I'm not sure. Simon's manual does not show the bolts. I would think they are 7 mm, but I recommend you contact CarJoy or Simon Auto to get a new set of bolts. I would have thought the water pump came with new bolts, but obviously that did not happen. If you feel safe replacing the pump yourself (don't overtighten the bolts, *only* do them to the specified torque!), I don't see why you shouldn't complete the job yourself. If you are unsure in any way, by all means take it to the garage and leave it to experienced hands to do the job. If the garage is used to work on old french cars with 7 mm bolts, they should be good. Best, Anders
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1982 Talbot Matra Murena 2.2 prep 142 (under restoration) 2017 BMW i3 "Charged Professional" 94Ah 2024 VW id.buzz Pro
Used to own: 2001 Renault Matra Grand Espace "The Race" V6 24v 1997 Renault Matra Espace 2.0 8V 1987 Renault Matra Espace J11 2.2
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roy4matra
YaBB God
Posts: 1213
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« Reply #13 on: September 12, 2020, 11:38:47 am » |
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Yay, parts have arrived! And replacing the pump went really well until while screwing the last bolt in the new pump, the bolt broke 😭
Any particular type?
The four bolts in the 1.6 water pump are indeed 0080625211 as Anders states, and they are M7x1.00x45mm. (these are exactly the same as 18 of the bolts holding the 2.2 sump to the block see Frame A31-02) Now 7mm thread bolts are not that common - it was NOT an ISO metric size but the French seem to love using non-standard sizes Check around to see if you can get them easily. Roy P.S. my modified Matra parts manual has the exact bolt sizes for as many as I have managed to find out so far, but if anyone can provide me with exact details of any bolts in any of the manual frames, please let me have the Matra frame number, part number and the details as above - thread size and pitch followed by length and I will add any I don't already have, to my master parts manual. Thanks.
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« Last Edit: September 12, 2020, 12:08:10 pm by roy4matra »
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