Disco 2 ACE pump failure

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leeorglory

Member
Posts
58
Location
Leeds
Hi all,

so last night the belt completely shredded on my Series 2. I got towed home and this morning I decided to investigate the cause, it turns out the ACE pump has completely failed (you can grab the pulley and wiggle it in all directions quite easily). So initially I thought just get another belt and a pump and job done.

However, this is easier said than done. My Disco is a series 2 TD5 and has ACE but NOT AC, which makes trying to find a new belt a bit of an issue, I can find belts for engines with no AC and no ACE, with AC but not ACE and with AC AND ACE, but not a single one for with ACE and NOT AC.

Then I've also noticed that a number of people actually delete the ACE, and there are kits out there for this.

So I have a few questions:

1. If I want to keep the ACE intact can anyone point me in the right direction for a belt that will work on a vehicle that has ACE but not AC?

2. If I were to delete the ACE would there be a noticeable difference in ride quality? I believe mine has already had the self-leveling air suspension replaced with shocks and springs.

3. If I were to delete the ACE what would that entail, would I need one of these kits (which as far as I can tell gives you a pulley and a belt) or would I be able to simply remove the ACE pump and all the necessary bits that go with it and use the belt that you would normally use for a vehicle that doesn't have AC or ACE?

Thanks in advance.
 
Take a piece of string, wrap it around the pulleys and shorten the measurement by 15mm for tensioner and get a belt from Halfords the right diameter and fit with new pump.

ACE makes the D2 so they tell me so why remove it?

Crusty steel pipes I'm often told but can't for the life of me justify all that hassle for the sake of getting Pirtek/HypeHose etc, out to fit some flexy pipes to replace or even getting them made up an fitting myself.

If it's a cash thing and you can't afford to fix it then maybe park it up until you got some dough for the repairs?
 
Hi all,

so last night the belt completely shredded on my Series 2. I got towed home and this morning I decided to investigate the cause, it turns out the ACE pump has completely failed (you can grab the pulley and wiggle it in all directions quite easily). So initially I thought just get another belt and a pump and job done.

However, this is easier said than done. My Disco is a series 2 TD5 and has ACE but NOT AC, which makes trying to find a new belt a bit of an issue, I can find belts for engines with no AC and no ACE, with AC but not ACE and with AC AND ACE, but not a single one for with ACE and NOT AC.

Then I've also noticed that a number of people actually delete the ACE, and there are kits out there for this.

So I have a few questions:

1. If I want to keep the ACE intact can anyone point me in the right direction for a belt that will work on a vehicle that has ACE but not AC?

2. If I were to delete the ACE would there be a noticeable difference in ride quality? I believe mine has already had the self-leveling air suspension replaced with shocks and springs.

3. If I were to delete the ACE what would that entail, would I need one of these kits (which as far as I can tell gives you a pulley and a belt) or would I be able to simply remove the ACE pump and all the necessary bits that go with it and use the belt that you would normally use for a vehicle that doesn't have AC or ACE?

Thanks in advance.
Hi I would keep the ACE system I'm in the middle of converting mind with modified block to hydraulic hose been a nightmare as for belt any motor factors should be able to get you one or look at jgs4x4 website just under £15
 
Hey guys sorry for the delay, so I've managed to buy a new pump, and the right sized belt (thankfully Paddock spares had one!)

However, I now have a new but related problem. Tonight just as I was about to fit the new pump I thought I'd check that the pipe from the reservoir wasn't blocked as I noticed that there was no fluid leaking out after I pulled it from the pump. I pulled the hose off of the reservoir and found this (refer to attachment)! That is a AA battery wrapped in tape blocking the reservoir!

This seems like a pretty stupid way of deleting the ACE to me but I guess this means that there must be a leak somewhere! So my new question is, is there a way of testing the ACE system for leaks without putting the new pump and belt on? And why would someone do this?!?!
 

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OMG what a schmuck who did that:mad::mad: ... was that on the return pipe to reservoir or on the feed to pump cos i can't figure it out?

anyway i can't find much logic in that other than stop foaming oil coming out of the tank cos that's one of the possible symptoms of a pump failure but unfortunately you can't check for leaks without the pump's pressure just be aware that you have to prime the pump as to have good flow through the outlet before you start the engine
 
OMG what a schmuck who did that:mad::mad: ... was that on the return pipe to reservoir or on the feed to pump cos i can't figure it out?

anyway i can't find much logic in that other than stop foaming oil coming out of the tank cos that's one of the possible symptoms of a pump failure but unfortunately you can't check for leaks without the pump's pressure just be aware that you have to prime the pump as to have good flow through the outlet before you start the engine
My guess is the guy I bought it off did it to sell it, I’m not sure which it is but guessing it’s the return as it’s not the line with the banjo bolt on.

Is there any info on priming the pump? I guess I’m going to have to put it all back together to find out what’s really wrong.
 
Yes without the banjo is the return and now it's quite sure it was clogged to stop foam coming out of the tank as the pump was dead... after the pump and belt are back the simplest and fastest way to prime it is to let the banjo off, remove relay R9(to not let the engine start) and ask somebody to crank it untill you see good flow on the outlet... though you can let R9 in but stop the engine right away when the pump starts squirting oil, then fit the banjo, start the engine and top up the reservoir with engine running untill the level is steady, if thepump is primed well you'll see serious activity in the tank ... then check for leaks eventually go for a harsh ride with lots of cornering and bumps so the system will bleed itself, you might need to top up a bit after that
 
Yes without the banjo is the return and now it's quite sure it was clogged to stop foam coming out of the tank as the pump was dead... after the pump and belt are back the simplest and fastest way to prime it is to let the banjo off, remove relay R9(to not let the engine start) and ask somebody to crank it untill you see good flow on the outlet... though you can let R9 in but stop the engine right away when the pump starts squirting oil, then fit the banjo, start the engine and top up the reservoir with engine running untill the level is steady, if thepump is primed well you'll see serious activity in the tank ... then check for leaks eventually go for a harsh ride with lots of cornering and bumps so the system will bleed itself, you might need to top up a bit after that
Brilliant! Thank you I will get on it ASAP! Hopefully it is just the pump that was jiggered and nothing else.
 
ACE pump replaced, belt replaced, battery bung removed, system bled and all is now working (in this area)! Thanks guys :)
 
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