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Operation Pig Iron: Volvo 740, Diff oil change, Pg 20.


danthecapriman
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I had to make do* with a plain NA 2.5 @juular. That S70 was probably the best, most comfortable do it all cars and I was a fool to get rid.  I need a  modern-ish daily in the next 5 months and a 740 thru to 960 estate is just as competent at what I need as the Octavia front runner, with a 1st gen Xc90 lurking. In no way did my Volvo fetish influence my suggestion of a C30 to the GF when her fiesta died 2 months ago .

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Parts ordered. 2 x rear shocks, 2 x rear springs. Opted for the heavy duty springs, slightly thicker metal and slightly bigger coils over standard. Mainly as it’s an estate so load carrying ability and I do tow with it occasionally. Standards would likely have been fine tbh but the price difference isn’t much.

Just over £100 from a german supplier. Not bad!

Had a quick look online at fitting, it looks like I can do this without a spring compressor. Two bolts on each shock, easy. Then use a jack to lower the axle down, remove spring retaining plate, pull out spring. Sounds easy! 
Obviously then I just need to remove the old air pipes and the air valve/pressure gauge in the boot. That’s also easy.

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16 hours ago, Amishtat said:

Christ, mine must be more out of sorts than I thought then, I don't expect any better than 30 mpg at absolute best. It's the lowly 2 litre auto though, so that might make a difference.  

My 2.0 auto never managed more than 26mpg. My 2.3 auto will do mid 30s on a run.

I find the 2.0 needs to be worked harder to to peak torque being far further up the rev range than the 2.3. The AW gearbox is also a permanent slush box while the ZF box on 2.3s locks up at 57mph in top so less power is wasted.

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My 2.3 manual 740 wagon did about 450 something miles on a tank whilst holidaying recently - I know the web figures say it's a 60 litre tank, but on the last full tank I filled it up at a point before the light had come on, and managed to get 69 litres in before the pump clicked off for the first time. I did check for holes 😅 From memory, at the time I made it to be roughly 29mpg based on my back of a fag packet calculations. I'm not light footed though, so maybe the mid 30's are achievable. My motor is on 220k miles as well so possibly feeling a bit of wear and tear!

The air assisted shock absorbers are interesting, are they a factory fit item or an aftermarket one? I don't think I have them on mine.

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1 hour ago, Rust Collector said:

My 2.3 manual 740 wagon did about 450 something miles on a tank whilst holidaying recently - I know the web figures say it's a 60 litre tank, but on the last full tank I filled it up at a point before the light had come on, and managed to get 69 litres in before the pump clicked off for the first time. I did check for holes 😅 From memory, at the time I made it to be roughly 29mpg based on my back of a fag packet calculations. I'm not light footed though, so maybe the mid 30's are achievable. My motor is on 220k miles as well so possibly feeling a bit of wear and tear!

I think (but may be wrong!) there is an extra range sized tank available from when they were new? Sure I’ve read it somewhere. @Six-cylinder might know from his days selling them? 
This ones only on 93k miles. Barely run in really.  
Another odd thing about the mpg, on the way there I was quite heavy. Rear seats were folded down and I was carrying several big heavy planks of timber. Like scaffolding boards but thicker and pressure treated so pretty heavy. Didn’t seem to have any effect on it though.

1 hour ago, Rust Collector said:

The air assisted shock absorbers are interesting, are they a factory fit item or an aftermarket one? I don't think I have them on mine.

I think mine were fitted from new, but they’re not Volvo parts, they’re Monroe. It’s like a cheaper alternative to the Nivomat self levelling system fitted to some Volvo estates. 
There’s two types though, mines the basic system with a valve and gauge in the boot under one of the side hatches in the floor, then you just pump air in to lift the ride height or drain it out to lower it. 
The more expensive version has a separate pump to do it instead. 
 

Looks like this.

39210B94-7616-42BC-B3ED-E5FB421256AF.jpeg.1460c459f50ea4f49b75e654a92ad731.jpeg

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23 minutes ago, danthecapriman said:

I think (but may be wrong!) there is an extra range sized tank available from when they were new? Sure I’ve read it somewhere. @Six-cylinder might know from his days selling them? 

Now we are working my memory!

In Oct 1987 760 saloons gained independent rear suspension and a larger fuel tank.

Somewhere in the back of my mind is pre 1987 760 saloons also had a second small tank working in conjunction with the main tank. I can't remember for sure. No 740's or estates had a larger or second tank that I remember.

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Not sure what happened with my tank then - I actually took a photo at the time due to the eye watering price 😅

393FD69C-6DE1-4382-9143-20BF1A23D387.thumb.jpeg.68b81eb72e3b904788340a5ff7d38e21.jpeg

that levelling system sounds pretty cool, good to see that parts are still available. You’ve had me excitedly pulling my boot floor up this eve just in case, mine just has the standard shocks though 😅

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22 minutes ago, Rust Collector said:

Not sure what happened with my tank then - I actually took a photo at the time due to the eye watering price 😅

393FD69C-6DE1-4382-9143-20BF1A23D387.thumb.jpeg.68b81eb72e3b904788340a5ff7d38e21.jpeg

that levelling system sounds pretty cool, good to see that parts are still available. You’ve had me excitedly pulling my boot floor up this eve just in case, mine just has the standard shocks though 😅

You can have my old ones if you like😆 you never know, it might just be a loose air pipe!

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Interesting re the shocks, I was just about to suggest they were nivomats, but clearly not!  Strange...

Let me know how you get on with the HD rear coils- I fancy a set myself for the V70 but have read that they can make the car a bit bouncy when unladen.... That being said, these are opinions from the Volvo forums and they're a finicky/odd bunch at the best of times.

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