MG
The Classic Marque

Thanks, guys. It's got me puzzled. There was no such drop in coolant before I did the heater plumbing a few months ago. There is no sign of any leakage under the car. No mayonnaise signs. I'll try cracking the crankcase plug later today to if any water shows up. I topped up a couple days ago and it has dropped a couple of inches since then without having started the engine.
Thanks, again.

KGM

Thank you for checking the set-up. Good idea to fit the jacks from below.

If you care to roll under the car again, please take some pictures. If possible to show the area of the inner wing :o)

thanks
Anton

I've noticed a tail off in BBS posts recently. Is the cold weather keeping us all in doors?

Jan T

Hi there,
Gosh, you should not scare me like that.
The front jacks for my YT are happily sitting in a box on the shelf, hoping one day to be re-united with the rest of the vehicle. (The body work is all finished, and the seats are away at the upholsterers. Still need to wire the dash.)
hence my concern.
So I rolled under the car, itself a significant effort for me, with one jack. A...

The screen frame bolts go through over-sized holes in the body so there is quite a lot of scope for sliding the whole screen back and fore and tilting it, when all four are slack and the centre bar is loose. Marks in the paint with the original seal should give you the fore and aft position. The quarter-light should barely touch the seal on the screen frame uprights, not compress it, or you can ...

My enquiries to the companies that Roger suggested didn't turn up any useful information and the person selling the nicely restored hardtop on ebay is a used car dealer who separated it from a car he sold.

The pictures in the advertisement show an arrangement of seals that might work but they are not like originals. I have been sent pictures of two original tops but it is difficult to de...

There is a simple and cheap tester you can purchase at any auto parts store that will check your coolant for combustion gasses. If it is a head or head gasket, there will be gasses in the coolant.

Google combustion leak tester.

The windshield in the 1970 was badly pitted (from blowing sand in New Mexico and Arizona) and finally took a huge rock thrown up by a semi-trailer. Two vertical cracks then appeared from bottom to top and they, along with the pits, created an annoying glare problem.

There is no mandated inspection and I should have left well enough alone but I had purchased the glass several years ago an...

A cracked cylinder head or leaking head gasket can allow coolant to be expelled through the exhaust when the engine is running. Pull the valve cover and look for condensation or mayonnaise. A loose plug behind the rear cover plate will more likely cause oil to contaminate the cooling system as the oil is under pressure where the coolant isnt. Again mayonnaise or oil will be seen in the coolant....

Hi Rod, see http://www.ttalk.info/Tech/Overflow_tank.htm. I've had a coolant overflow recovery tank since 2004. That's why I'm trying to figure out why I'm having to add coolant. There's no sign of leakage under the car. Almost has to be getting into the crankcase. Thermostat area is the only place disrupted in the past couple of months.
Bud