Tickover drops on hills?

[Josh Tagg]

For the past 2 nights I've been testing the car up and down dale, all seems well apart from a slight niggle. If pulled up at a junction facing uphill the revs drop? I'm not sure if it stalls as I daren't let it in case won't start. Perfectly fine idle when on flat or downhill and driving uphill it pulls well. Any ideas would be grateful ta

 

[Towpack]

This has been discussed on the forum before. A tired lift pump seems to be the conclusion. Mine does it and has done for years. If I park on the drive facing uphill the tick over drops but not enough to cause stalling issues. Some owner's have fitted electric lift pumps to assist the OE item.......https://www.landcruiserclub.net/community/threads/installing-a-walbro-pusher-pump.131934/

 

[Josh Tagg]

Thank you, seems to be a commonish problem, am I suspecting a weak lift pump? It has done just shy of 200k?

 

[karl webster]

Is it manual or auto josh?

 

[Josh Tagg]

Manual pal

 

[karl webster]

I guess you have the clutch down when you stop? The fump has an idle up on it. I don't understand the ins and outs but that makes a difference. Also what's the pump set at for normal idle? If it's a little low before you start that might not help.
As tp says though. People put a second pump on to help. I've been recently advised that they don't do much after mine had packed up.

 

[Josh Tagg]

Cheers karl ill check tonight see if clutch up or down makes a difference. Tickover is about 600rpm I think, its certainly not high anyway. Seems the lift pump is part of the main fuel pump then? That's why its easier to add a pusher pump to help I'm assuming

 

[karl webster]

Set tickover to around 750.

Yes you only have the main diesel pump on an 80. Ovbiously check/ clean your pick up filter in the tank under the seats if you haven't already done so.
Personally I think with the tickover turned up you will notice a big difference.

 

[Josh Tagg]

Nice one, thank you sir. Shall be done soon as

 

[AndycruiserguyLomas]

The IP on the one you had the wings off was reconditioned before the engine expired and probably not done 200 miles since it was fitted if its any help Josh. I'll look after you on that one as its a bit spare to my requirements being a manual.

 

[karl webster]

I also have recon and non recon pumps josh if you decided to go down that route so it would be worth comparing prices.

Personally don't think you need a pump but I could turn out wrong.

 

[Josh Tagg]

Thanks chaps I'll have a tinker see What I can find

 

[Towpack]

There are vacuum powered idle up actuators for the air con and power steering but not one for the clutch, at least not on mine there isn't.

 

[karl webster]

There are vacuum powered idle up actuators for the air con and power steering but not one for the clutch, at least not on mine there isn't.

Think the 24v are different tp.
The 24v clutch has a different peddle that has a spring to assist it to make it lighter