Renault Scenic 1 - Head Gasket Replacement*FIXED* - Page 6 - Renault Forums :: Independent Renault forum

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post #26 of 56 (permalink) Old 1st January 2008
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Originally Posted by Bob925 View Post
Hello again delta!
At the worst of my head gasket problems the car would barely start - once the mis-firing had cleared the damned thing would do a 50-odd mile journey no sweat. It emptied it's coolant through the exhaust, but she kept on going!

Hi Bob - This is only a shorty as I'm about to go get rid of the swirling noise as discribed in the megane 'how-to' guide on this forum!

You describe our car perfectly with the bit I've quoted above. Once it starts (eventually) it'll drive any distance without hesitation or loss of power. It's just getting it started which is always interesting...

When you got your HG and pump done did it improve the starting problems?

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post #27 of 56 (permalink) Old 1st January 2008
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Hi Bob,

Well, I tinkered with the air valve on the radiator - No spluttering etc so quite whats causing that water swirling sound I've no idea.

Well, I'm afraid ours probably isn't in quite as good condition as yours - especially under the hood!

Here's some pics I took today on the phone to show you:

This is the beast the moves our motor:

This is some of the oil thats on the engine case at the front by the oil filter:

Oil leak at the rocker cover

Was this the crystalline deposits you were talking about? - It's on top of the engine ABOVE the leaks so I assumed not..

Not terribly proud of this but here's the dirty coolant tank as seen from the outside:

On a slightly different note, some corrosion I need to get dealt with when the windscreen gets replaced again (when the chip turns into a crack):

Scratch where some git keyed it before delivery:

Engine from above (I know your going to think I'm cruel standing on the car for this pic but I couldn't think of another way to get you a decent shot - I wanted you to get a detailed look):

Inside the coolant tank - Looks rather dirty (excuse the whilte around the outside - camera phone - exposure isn't very good) Note that the coolant is orange where I put in the halfords pink coolant and it's mixed with older oily coolant:

Bottom of the radiator is not looking healthy - I didn't even realise it was this bad until I shoved the camera down there and snapped this pic:

Small dent to the drivers wing thanks to some idiot in a kent highways uniform (Insurance company wrote off the car as Cat D so we got 720 for it - which we spent on the bravo which blew its G/box away Grrr):

This is damage from the previous owner - When we bought the car we knew the previous owner had a minor prang which had been cheaply repaired - This is it (one day I'll try to get this fixed):

Something good to show at last - Nothing nasty looking coming out of the exhaust (Yes the engine is running):

This is one of the main reasons I don't want to let this car go - The mileage being so low:

I'd really be interested to know what this is (it's behind the drivers door). It's making a high pitched whining noise but only when the engine is running:

Yet another possible fault - This (which I'm pointing at) is making a funny buzzing rattling sound when the engine is running:

The new TDC sensor which I can proudly say I fitted myself (Note however that the plug on it is completely the other way around from the old TDC which I've also photo'd):

Are these lines meant to line up?:

This is the back loight panel on the passenger side. Some of these pins are slightly loose:

Plug for the above - After I've been at it with a screwdriver. Note that the bottom bits (bottom in this photo - top in real life when fitted) are the bits I've attacked with the screwdriver. Unfortunately it didn't make any difference and the connection is still very dodgy:

And finally, the most stubborn part of this car which took me months to learn to master and control with sheer brute force mixed with technique, I proudly present the clutch pedal (Note I've worn it down to the metal it's given me such a fight on a daily basis):

I've got other photo's in the "Your first Renault..." thread here
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post #28 of 56 (permalink) Old 1st January 2008
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Originally Posted by Bob925 View Post
I would be seriously interested in the chap you mentioned that gets K7M engines in. Although mine is running sweet as at the mo, its always good to know for when the inevitable comes. Might be a wise idea for you to get a second hand engine for your car if she really is that poorly. It's a big job, but with the hire of an engine crane and a few tools you could feasibly do the job on your own drive!
1st Call Renault Ltd: 01268 566 755

The chap I spoke to said that they only buy insurance write offs. He said they don't buy MOT failures, non-starters etc as they have no idea about the engine. He said they nearly always test the engine when they take it out, it comes with 90 days warranty and he said that they should be able to fit a cam belt for the belt cost plus 10-20 before sending.

The 250 price Includes delivery charge of 75. The engine itself is actually only 175. Not sure about VAT.

I'm defo gonna grab one about march time (once this bravo gearbox failure has been recovered from financially) so that our beast has got a backup incase this one goes kaput and needs a serious re-build. Also gonna grab an engine hoist too..

You can never have too many spare engines lying around
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Last edited by delta1066; 1st January 2008 at 03:39 PM.
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post #29 of 56 (permalink) Old 3rd January 2008
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Our Scenic, with the 1.6 8V engine, has had 2 HG failures. The first was at about 3 years old, just out of warranty. Renault paid for most of the cost, and as it included a cambelt change it saved having to do that job at a later date.

Cost about 600, from memory, when it went the 2nd time (Renault dealer did the repair).

There must be something wrong with the design of this engine if it's quite common. Has anyone worked out what the problem is? I'm assuming that if it's happened twice, it will happen a third time.

Is there any way to prevent it happening again? Is there anyway to know if it's about to happen again?

In both cases the heater stopped working, and that was the first sign of problem, followed by eating the coolant (out the exhaust).
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post #30 of 56 (permalink) Old 4th January 2008
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Hi again Delta - been back at work (noooo!) so my internet time has been somewhat curtailed!

Its amazing how photos help tell a story! They are great. As promised I will upload some myself, but due to a lack of a camera (!) and breaking my mobile over christmas (so no more camera on that then!) I can't! I'll work my way through the photos as best as I can... On the starting "issues" - yes, it fired up straight away, as it always used to and then quickly settled to an even idle with minimal steam from the back. The most satisfying improvement was the sloshing noise had almost gone. I had a bit of bleeding to do (as discussed elsewhere 'round these parts) then gone for good hopefully.

Looking at your pics, the car doen't seem in too bad a nick, that corrosion on the A pillar is easily treatable with the screen out. I have corrosion on the rear wheel arches, which hasn't got much worse over the last few years fortunately. Other dents and scratches are par for the course on an older car though, I rammed a shopping trolley into the side of my car once. Long story... Looking at the leaks, I shouldn't worry too much about them as they seem to be from the rocker cover gasket. This'll be changed when the HG is done. Similarly around the oil filter, mines covered in oil there because the oil filter is such a **** to replace without getting oil all over the place.

That coolant expansion tank looks basically the same as mine was. Its basically full of engine oil , are there any dull grey or whiteish deposits opn the dip-stick or oil filler? The red colour could well be corrosion from the radiator. Does your car have air-con? If not then I think a radiator swap will be fairly strightforward. With air-con these jobs tend to be more expensive, I have no idea if this is the case on the Megane though. A new rad from somewhere like GSF is 60ish and could be fitted when the HG is being done, since the coolant system will be drained anyway.

The thing thats whining under the car looks to be the fuel filter - dead easy a simple swap over though you'll get convered in petrol (I did). The thing buzzing under the bonnet is I think the idle control valve, though I'm not sure. Never had to touch that one before. I wasn't flush enough for a new TDC sensor, so I just took mine off and gave it a wipe so it'll do for now! I've no idea if those lines are supposed to match up on the HT leads with the ones on the coil packs. I doubt it though, as the position of the leads relative to the coil packs makes no difference.

Those rear light clusters are a pain, my rears still flicker a little and I'm hoping that come May the MOT chap doesn't say anything. I managed to get to the point where the flickering only happens when the rear fogs are on (which is never). The pins will be a little loose on the clusters (mine are too) give them a good clean up with some emery cloth to get rid of the white corrosion, then a little squirt of WD40. See if that helps.

And finally... Yes my clutch pedal rubber is also down to the metal, on the same side in the same place.

And to Bruce, keep a really close eye on the coolant levels. Sudden variations in the level (best to check with a cold engine) is the first sign of trouble. There is (to the best of my knowledge which isn't saying much) no way to tell when its about to happen again. And 600 for the job from a Renault dealer doesn't sound a bad price to me.

Phew! The keyboards on fire! Hope this helps.

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Last edited by Bob925; 4th January 2008 at 10:41 AM.
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gasket , head , renault , replacementfixed , scenic

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