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Author Topic: Rover HG - is it HG?  (Read 24224 times)

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JamesV6CDX

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Re: Rover HG - is it HG?
« Reply #15 on: 14 January 2007, 20:36:22 »
Do the compression test first, see what it comes back with. It might be obvious if it's low between two cyls.

Just disconnect something to stop it starting.. not sure about the newer models, but the K series I've always worked on had a coil and king lead!
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Re: Rover HG - is it HG?
« Reply #16 on: 14 January 2007, 20:39:23 »
Jaime, As far as I am aware, the best way to test compression is indeed to pull fuel pump fuse then check the compression in each cylinder. They should be within 10% of each other (and damn high considering it is a diesel!)

It will probably take a little while for the engine to run out of fuel though as there is a reservoir I think.

Where is Mark when you need him? ;)

Remember, given time, oil and water will seperate and the oil will rise above the water.

« Last Edit: 14 January 2007, 20:41:06 by admin »
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TheBoy

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Re: Rover HG - is it HG?
« Reply #17 on: 14 January 2007, 20:40:30 »
Quote
Jaime, As far as I am aware, the best way to test compression is indeed to pull fuel pump fuse then check the compression in each cylinder. They should be within 10% of each other (and damn high considering it is a diesel!)

Remember, given time, oil and water will seperate and the oil will rise above the water.

Its a 1.6 Petrol LB66...
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Grumpy old man

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Re: Rover HG - is it HG?
« Reply #18 on: 14 January 2007, 20:42:27 »
Why the heck did I think it was a diesel???  :-[

Well it is dead easy to test compression then! :)
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TheBoy

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Re: Rover HG - is it HG?
« Reply #19 on: 14 January 2007, 20:43:38 »
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Why the heck did I think it was a diesel???  :-[

Well it is dead easy to test compression then! :)
Probably coz you saw me in a rover diesel at Santa Pod? That wasn't mine, I'd borrowed it to tow the 'burger van'...
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JamesV6CDX

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Re: Rover HG - is it HG?
« Reply #20 on: 14 January 2007, 21:08:33 »
heh, get out there with one of yer lights, and post up the results ;D
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TheBoy

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Re: Rover HG - is it HG?
« Reply #21 on: 14 January 2007, 21:11:17 »
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heh, get out there with one of yer lights, and post up the results ;D
I think that is going to be a job for the morning, when I've found the tester...  ...and daylight will be handy...
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Matchless

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Re: Rover HG - is it HG?
« Reply #22 on: 14 January 2007, 22:09:28 »
For a compression test:

Kill ignition somehow..coils dont like working into a disconnected plug lead and can die as a result.
Stop injectors.

Open throttle fully and crank til you get a stable reading.

When a car loses its coolant the temp gauge goes high but is often missed (especially by the females of our species), as more coolant is lost the heater starts to go cold due to lack of circulation and the gauge goes normal or low because its not fully immersed in water anymore.
If its run for too long in this state the head gets very hot and may warp, exhaust valves can burn out and the gasket fails.

I would refill it with water and see how it runs then work through any symptoms.
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JamesV6CDX

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Re: Rover HG - is it HG?
« Reply #23 on: 14 January 2007, 22:56:05 »
Do you still want to meet up next week, or shall we wait to confirm a diagnosis?
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TheBoy

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Re: Rover HG - is it HG?
« Reply #24 on: 15 January 2007, 09:43:32 »
Right, not hugely successful morning.

Assuming No 1 is nearest cambelt...

No 1, can't get plug out - the place that changed plugs last has left the rubber bit from plug socket on.  I cannot get new socket on, even if I remove rubber from socket.

No 2 - about 11 - 12 bar

No 3 - about 6 bar

No 4 - about 6 bar

Due to depth of plug wells, I don't think I have a perfect seal with the gauge, so not 100% sure if conclusive?

Currently got the gauge stuck in No 4  >:( and having trouble getting it out (brass handle bit on the gauge isn't long enough so having to tighten/losen as best I can with long nose pliers)

Once I get it off, I will take Matchless's advice and take for a spin - is it OK to run on neat water, as I used all my coolant on Tunnies Senny last night.
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Marks DTM Calib

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Re: Rover HG - is it HG?
« Reply #25 on: 15 January 2007, 09:52:28 »
Should be ok for a spin on water only....just prey it doesn't freeze tonight (you can always drop the coolant again...)

Note, compression tests dont always show head gasket failure to well.....
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TheBoy

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Re: Rover HG - is it HG?
« Reply #26 on: 15 January 2007, 09:54:53 »
Quote
Should be ok for a spin on water only....just prey it doesn't freeze tonight (you can always drop the coolant again...)

Note, compression tests dont always show head gasket failure to well.....
Once I get that bloody gauge out, I will take for spin...

When driving it, how will I know if HG failed?
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Re: Rover HG - is it HG?
« Reply #27 on: 15 January 2007, 10:11:08 »
Coolant loss plus pretty pressurised coolant system with engine running (hard pipes)

Exhaust looks like it should be sat on the flying scotsman if bad......its worth popping into a local garage and asking for a header tank sniff...

One other thing which is a give away....look on the back of the car, if you see a badge that says rover....and it is a 1.4/1.6/1.8.....
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TheBoy

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Re: Rover HG - is it HG?
« Reply #28 on: 15 January 2007, 10:13:46 »
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Coolant loss plus pretty pressurised coolant system with engine running (hard pipes)

Exhaust looks like it should be sat on the flying scotsman if bad......its worth popping into a local garage and asking for a header tank sniff...

One other thing which is a give away....look on the back of the car, if you see a badge that says rover....and it is a 1.4/1.6/1.8.....
When I first saw it last week, the header tank had that rich smell that you get if you stand behind your Omega and start it when cold....
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Allenm

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Re: Rover HG - is it HG?
« Reply #29 on: 15 January 2007, 10:52:32 »
Quote

One other thing which is a give away....look on the back of the car, if you see a badge that says rover....and it is a 1.4/1.6/1.8.....

PMSL  ;D ;D ;D
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