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1.8 vvc timing 
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Ready for SVA

Joined: Wed Aug 11, 2010 9:27 am
Posts: 432
Location: Sheffield
GTM: Libra
Post Re: 1.8 vvc timing
Removing the spare wheel, spare wheel moulding, battery and battery moulding will give good access to the ends of the tunnel pipes. Removing the front clam (unplug lights connector first!) is easy if you have two people to do it and gives much better access but isn't entirely necessary.

If you need to remove the big rad pipes I found withdrawing them rewards easiest. I lubricated the p clips holding them in the tunnel and twisted/pulled them out - the clips can twist causing em to jam so its best to have one pulling and one under the car. I did this rather than trying to remove clips cos i'd have to take seats/carpets out to get at their bolts. Threading the pipes back thru the clips was easier, especially if you lube them again first.

My big rad and small heater ally tunnel pipes are not beaded either, as rec'd from factory, but I use two jubilee clips per end and generally have no issue. All the bends/straights at the front and rear I replaced with silicone hose and proper beaded ally pipes.

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2000 GTM Libra 1.8VVC 145BHP


Mon Jun 10, 2019 11:04 am
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Joined: Sun Oct 19, 2014 10:10 pm
Posts: 802
Location: Bristol
GTM: Spyder
Post Re: 1.8 vvc timing
In my experience you can get away without beaded ends if using rubber hose but silicone hoses slip even with two hose clips. As Sidewinder says, removing the battery box gives good access. I changed my radiator for the Passat one without taking the front clam off. Mine are beaded but I still get a very slow leak from the join on the front of one of the main ali pipes. It seems that there is a pin hole in the ali on the wrong side of the bead and the hose only just overlaps with it. Next time I have the coolant drained I'll change the hose as I have a set from a TF that are much longer so I can put the clips on past the pinhole. To be fair it hasn't got any worse in the last 3 years and only leaks a little bit. I've never seen it drip when the coolant is hot so I wonder if some expansion closes the hole and it doesn't seem to leak when its cold and un-pressurised, just a few drips as it cools down. Good luck!


Mon Jun 10, 2019 1:49 pm
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Part built GTM

Joined: Thu Nov 22, 2007 10:31 am
Posts: 103
Post Re: 1.8 vvc timing
Great, thanks. The battery housing bolts are hard to get to behind the pedals but I found them so I'll look to remove the front clam and proceed as you say.

Few other generic questions:

Does anyone have a recommendation on a good air filter? Decent bang for buck, but not like £300! I currently have a cheap one off eBay, just to keep the dust out during commissioning, but it's not going to be great on the road.

On the wiring front the diagrams suggest a white + orange wire from the speed sensor should be connected to my speedo, but the ECU pin out's say the white and orange on red connector pin 30 is "not used." Does that mean the wire should run directly from the sensor to the speedo?

I may have made a mistake in that I purchased an oil temperature gauge and it appears that the metro loom only reported out engine oil pressure. Does the 1.8 VVC engine have an oil temperature sensor or is it just pressure? I see the VVC has an oil temperature sensor...?


Sat Jun 15, 2019 4:46 pm
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Ready for SVA

Joined: Wed Aug 11, 2010 9:27 am
Posts: 432
Location: Sheffield
GTM: Libra
Post Re: 1.8 vvc timing
I made my battery holder fixings 'captive' in the tub and floor of the cowling for just this reason - thick pieces of stainless bolted in place that have threaded holes in em to accept the M6 battery molding fixings.

I used to use just a KN RU-1480 filter clamped straight on the intake drawing air from inside engine bay for ages which seemed to work fine, but it did get quite dirty.
Replaced it with a cheapo clone of the KN Apollo kit, ditched the actual filter element included in the kit and bought a genuine KN one (RC-5052) - worked out much cheaper than a whole genuine KN Apollo kit. Cold air is better and it looks 'cooler' - no real performance change I could tell, but hasn't made it worse so I like it.

air-filter-t3945.html?hilit=apollo

What instruments/speedo gauge do you have? The MGF (early) uses mechanical cable speedo drive direct to the instruments, later ones have electronic I think but both go direct to instruments - the ECU isn't involved. There is a speedo sensor available that's supposed to connect to the ECU but it's only for the automatic CVT(?) version.

My VVC doesn't have oil temp gauge, only pressure warning light (though I do have a plug socket for it on the engine). The temp sensor goes in a blanked off hole in the oil filter mount I think. I think the ECU is again not involved but am not sure.

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2000 GTM Libra 1.8VVC 145BHP


Sat Jun 15, 2019 5:44 pm
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Joined: Sun Oct 19, 2014 10:10 pm
Posts: 802
Location: Bristol
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Post Re: 1.8 vvc timing
Air filter - I'm using a simple K&N cone on the throttle body. Seems to work okay but I have thought about ducting in colder air one day.
Speedo - mine has a gismo that fits to the gearbox end that converts the mechanical speedo cable drive into an electronic signal for the GTM supplied speedo. IIRC the wire goes direct from the gismo to the speedo, not via the ECU but I could be wrong.
Oil temp - I fitted one of these to my current MGF VVC but there wasn't a spare tapping for the sender so I added a sandwich plate between the oil filter and housing. Mine doesn't seem to have an oil pressure light but does have a pressure gauge. The gauge sender is in the hole that would originally have had the switch for the light. I have a TF160 engine waiting to go in, the TF did have an oil temperature gauge (but not oil pressure, just a light), There is a tapping for the temp sender on the oil filter housing elbow thingy. That engine also has a factory fitted oil cooler in the form of an oil to water heat exchanger, kind of like a budget version of a laminover so I guess MG Rover realised that the oil does get a bit hot on these mid mounted k series.

My battery box top fixings are just tapped into the grp. Seems to work okay but if it ever comes too loose I might use rivnuts.


Sat Jun 15, 2019 9:17 pm
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Part built GTM

Joined: Thu Nov 22, 2007 10:31 am
Posts: 103
Post Re: 1.8 vvc timing
I picked up some Smiths clocks ~4 years ago which were similar to the original GTM ones to fit in the original binnacle (my dad was lucky enough to buy one from Westfield). Pictures attached.

When it stops raining (if it ever stops raining!) I'll get on with the water and have a bash at wiring in the clocks. Fingers crossed the fuel sender / petrol gauge work because, for some crazy reason, no petrol gauge was installed on the car and I'm not sure if Dudley wired them up or not.


Attachments:
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Clocks.JPG
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Sun Jun 16, 2019 11:42 am
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Ready for SVA

Joined: Wed Aug 11, 2010 9:27 am
Posts: 432
Location: Sheffield
GTM: Libra
Post Re: 1.8 vvc timing
Did you get a speedo sender with the clocks? What's attached to the gearbox speedo drive at the moment?

My gauges etc were American 'Classic Instruments' from a UK company, I got an 8 pulse electronic sender with em that I had to adapt to fit the GBox mech drive output.

Might be some useful stuff for you here http://www.sidewinderforge.co.uk/netlib ... libra.html

I think the sender I bought unnecessarily is the one for the MGF electronic speedo (YBE100520).

Is there wires from the fuel sender under the dash somewhere?

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2000 GTM Libra 1.8VVC 145BHP


Sun Jun 16, 2019 2:58 pm
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