Pas Pump Still Leaking, But Worse

[sir john]

Just put the old girl back on the road and having a few problems. The most urgent is the PAS leak.

Before putting her back on the road i thought id fix the very slow leak with a new Toyota/Lexus PAS pump "o" ring.

I took it from the PSA pump rebuild kit. When i fitted the new "o" ring it looked a bit thin. When i pushed the reservior back to the pump it felt too easy to push back on.

Now its leaking more thna ever. Thing is, i dont think its coming from the "o"ring??????????????????????

[The-Acre]

Just put the old girl back on the road and having a few problems. The most urgent is the PAS leak.

Before putting her back on the road i thought id fix the very slow leak with a new Toyota/Lexus PAS pump "o" ring.

I took it from the PSA pump rebuild kit. When i fitted the new "o" ring it looked a bit thin. When i pushed the reservior back to the pump it felt too easy to push back on.

Now its leaking more thna ever. Thing is, i dont think its coming from the "o"ring??????????????????????

If you changed the O ring and it's now even worse, doesn't that suggest that it was the O ring but it's either dislodged or it's the wrong one?

Before I did mine I cleaned the pump all round and then checked every day so I could be certain where the leak was. I bought the O ring as a part on it's own and it seems fine 2 years later.

[sir john]

Just put the old girl back on the road and having a few problems. The most urgent is the PAS leak.

Before putting her back on the road i thought id fix the very slow leak with a new Toyota/Lexus PAS pump "o" ring.

I took it from the PSA pump rebuild kit. When i fitted the new "o" ring it looked a bit thin. When i pushed the reservior back to the pump it felt too easy to push back on.

Now its leaking more thna ever. Thing is, i dont think its coming from the "o"ring??????????????????????

If you changed the O ring and it's now even worse, doesn't that suggest that it was the O ring but it's either dislodged or it's the wrong one?

Before I did mine I cleaned the pump all round and then checked every day so I could be certain where the leak was. I bought the O ring as a part on it's own and it seems fine 2 years later.

Its not from the "o" ring. just had it in the workshop and its leaking from the pipes just after where they has through the front pannel. The pipes are dry under the bonnet but running in fluid behind the bumper.

Looks like a bumper off job this chrismas. good thing is the alternator is dry....ish.

[simontaylor]

Me too, I just bought the ring on it's own and it has not dripped since.

[SteveLS400]

Its not from the "o" ring. just had it in the workshop and its leaking from the pipes just after where they has through the front pannel. The pipes are dry under the bonnet but running in fluid behind the bumper.

Looks like a bumper off job this chrismas. good thing is the alternator is dry....ish.

Hi again. It appears that the pipes can be replaced relatively easily http://www.lexusownersclub.co.uk/forum/index.php?showtopic=69654&st=0&p=735861&hl=steering&fromsearch=1entry735861

[ManicMark]

Its not from the "o" ring. just had it in the workshop and its leaking from the pipes just after where they has through the front pannel. The pipes are dry under the bonnet but running in fluid behind the bumper.

Looks like a bumper off job this chrismas. good thing is the alternator is dry....ish.

Hi again. It appears that the pipes can be replaced relatively easily http://www.lexusownersclub.co.uk/forum/index.php?showtopic=69654&st=0&p=735861&hl=steering&fromsearch=1entry735861

Hi you can use a piece of copper tube bent to the right shape much cheaper than the cost of a new pipe from lexus & it wont rust :D

[sir john]

Its not from the "o" ring. just had it in the workshop and its leaking from the pipes just after where they has through the front pannel. The pipes are dry under the bonnet but running in fluid behind the bumper.

Looks like a bumper off job this chrismas. good thing is the alternator is dry....ish.

Hi again. It appears that the pipes can be replaced relatively easily http://www.lexusownersclub.co.uk/forum/index.php?showtopic=69654&st=0&p=735861&hl=steering&fromsearch=1entry735861

Hi you can use a piece of copper tube bent to the right shape much cheaper than the cost of a new pipe from lexus & it wont rust :D

Slight misunderstanding here. I know about the cooling pipe behind the front bumper vents rusting through. I replaced mine with a piece of microbore copper pipe ages ago. This leak is from where the pipes from the pump go through the Front Body Pannel behind the OS headlamp, on their way to the steal cooling pipe behind the bumper.

If you take the airfilter box out you can see where the pipes disapear behind the headlamp. Thats where mone is leaking. Thats where i thought yours might be leaking as well Steve.

Im tackling it at chrimbo and ill post some pics and how to fix it. Might come in handy for others.