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Hi all, I am currently experiencing an issue with my MG Metro whereby my car without driving very far heats up very quickly and get very hot, and I am not getting as much power out of the car as I used to (whether cold or hot). I have had the brakes all replaced including the master cylinder and have had all of the radiator bits replaced too but can’t seem to locate the issue. I have noticed that the handbrake light flickers on when I am driving and there is a lot of ‘snap’ on the exhaust whererby I can hear it hit the bottom of the car when easing off the accelerator. I have had the brake system looked over again and the handbrake system too, but I have been given the okay. I am really stuck with where to look next, has anyone had these issues with a metro or A-series engine before? Any help or advice would be greatly appreciated.  |
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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Mar 10, 2018 11:59:53 GMT
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I'm not sure what brakes have to do with overheating? It sounds like it could be a head gasket tho. Both symptoms match that. Is it pressurising the system and blowing the coolant out?
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slater
Club Retro Rides Member
Posts: 6,390
Club RR Member Number: 78
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Mar 10, 2018 12:01:08 GMT
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Oh and compression test it to find out. :-)
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Mar 10, 2018 12:51:38 GMT
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Sounds very much like a potential HG problem to me. Compression test is a good start. The good thing is that a HG change on these is a straightforward thing to do.
That said, having re-read your post does it actually heat up or is it just the gauge telling you it heats up? Might be worth checking that out first. The exhaust thing sounds more like dodgy mounts than anything else to me. And I don't understand how the handbrake light is connected to all this - that should just be a standard switch which turns the light on when the handbrake lever is lifted.
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Last Edit: Mar 10, 2018 12:55:25 GMT by mrbounce
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Mar 10, 2018 13:49:06 GMT
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I'm not sure what brakes have to do with overheating? It sounds like it could be a head gasket tho. Both symptoms match that. Is it pressurising the system and blowing the coolant out? Well it did for me this week ...... sticking front brake calipers ......but to be fair it was on a fully loaded 32 ton Daf tipper trying to get up and down the hills in lincoln ...... lots of heat and smoke from the front axle and advancing engine temperatures....... |
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Mar 10, 2018 13:50:46 GMT
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But on a more serious note, definitely sounds like head gasket issues.
Have you checked both oil and coolant to see if they have mixed?
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stwat
Part of things
Posts: 546
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Mar 10, 2018 14:14:49 GMT
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It could well be the ignition timing is out.
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1992 190E 1.8 manual
1989 300SE Low mileage LuxoBarge
1988 190e 2.6. 1988 190 2.3-16 Cosworth
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Mar 10, 2018 14:29:27 GMT
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Had this years ago with my mini with a 1275 mg metro engine in . Just didnt go very well anymore and i assumed it was on its way out being a kid and not knowing any better. Sold the car for peanuts .
The new owner told me it was just the inlet manifold gasket leaking !!
Might be worth checking the basics !
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Mar 10, 2018 15:21:03 GMT
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That could also be related to the exhaust knocking, if the inlet/exhaust manifold bolts are loose.
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ChasR
RR Helper
motivation
Posts: 10,309
Club RR Member Number: 170
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That could also be related to the exhaust knocking, if the inlet/exhaust manifold bolts are loose. If it has an aftermarket exhaust or inlet manifold it may need special/custom washers making up so that they can stay secure. It depends on if the manifolds are secure however. I'd expect it to be running poorly. Going by what you have said I'd check the brakes aren't binding. That would cause an overheating situation potentially as well as dented performance! What have you had done to the brakes exactly? Does the car roll by itself freely? Otherwise I'd look at the basics. Ignition timing and fuel mixture. |
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Last Edit: Mar 12, 2018 9:30:35 GMT by ChasR
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steveg
Posted a lot
Posts: 1,586
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Mar 12, 2018 10:54:07 GMT
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Sounds like you have had to spend a fair bit. If the car rolls easily when cold check again once it's hot. Assuming there isn't a problem when the car isn't running the only other brake component I can think of that might cause a problem is the servo but that would only be when it's running.
If it isn't the brakes and something is dragging the next thing could be the gearbox. That isn't likely though unless it's started making a noise.
Lack of power could be all sorts. I guess you are running it on unleaded, has it had hardened valve seats fitted ? If it hasn't it's possible the valve clearances have closed up a lot so that and the other checks like the plugs etc is a good place to start. I'm not sure what sort of ignition is fitted but it's possible the timing has been set to compensate for unleaded and could be closer top dead centre than the factory figure. Check the vacuum advance is connected and working as well as that will make it feel sluggish, and check the carburettor dash pot oil as well.
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