Shaun Morgan

Sounds like a problem under load..  Did you change out the fuel filter ? Or as MNTL.XD said..trans fluid level OK? Sounds like its going into limp mode.

Is the NF really hot under the bonnet, maybe your gauge is out of whack, and she's overheating. Try changing the 'stat for a cooler one, or grab a second hand radiator, maybe? Is the timing correct.?

Radiator 8 months old .once you climb the hill all good again  I will do the Themostat and temp sender unit see what Happens Thanks lads

So it's only when going uphill?

Will it do it on level ground if you floor it enough for it to drop back to 2nd?

Maybe it could be a gearbox (fluid) problem?

LEVEL GROUND It seems to be fine .Thinking Thermostat maybe  Up hill on a long pull when it dose it

Fuel pump shagged, coil pack shagged, blocked fuel filter or air filter, plugs knackered, leads stuffed, cracked distributor cap, hand brake on........

It starts and runs fine All the above done . temp in middle of Gauge when I have trouble ..May be Thermostat  ??? .. Its had the head and rad done 1 year ago

When temp is Normal range The car  loses power up hill  will change back to 2nd and gutless . before it would be in 3 gear doing with power to spare

got me beat

OK, after reading that a few times,

 

You would like to know the inside diameter so you can find some heavy springs to fit?

 

 

Have you been to your local Repco/Sprint/Autobarn? They would be able to tell the number straight up, and if you find a half decent (rare these days) attendant, they might actually be able to point you in the right direction.

 

What do you need hardier set for? Have you thought about Air Shocks?

It rides to soft . And i do tow some trailers time to time . Thanks for your reply .Ebay has a set of rear coils $175.oo not to bad

Rear coil springs inside  Size I think same as ef/el I need inside DIA so i can find some heavy springs to fit. I had  a toyota tarago I put KIA rear springs in It worked well

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