1.9 XU9JA Spacer Plate...

[bacardincoke 48 1 Cars]

Recently took this off and it was sealed to it's block side by some sort of compound and the sump side by a regular gasket.

 

Vaguely recall reading something that stated this was the correct method, but can't turn it up again just yet to confirm, but in no rush as things are still a bit away from that stage. 

 

Anyhow... if my memory isn't deceiving and this is how to do it properly, not a problem, but got me wondering could a second sump gasket (standard 1.3mm) be used instead?

 

Never say never and can't predict if the spacer will need to come off again some time, just strikes me as much less mess to clean off than there would be with sealant.

 

Possibly the extra thickness would mean the sump bolts may not have enough reach, but just guessing.

[welshpug 1,721]

yes its sealant from block to spacer, gasket to a steel sump,

 

aluminium AC sumps were mounted with sealant, and later cars like the 306 etc all only used sealant even on steel sumps.

[SRDT 232]

The spacer is really a block reinforcement plate so it's not good to seal it with a thick paper gasket that can flex.

[bacardincoke 48 1 Cars]

That's spot on, thanks... suspected there had to be a good reason they did it that way, good to now know why.

[petert 630]

I always take my time by gluing down the spacer first with some 1211 and let it cure overnight. It gives you time clean up the first joint inside and outside. I then add the sump with 1211 also. I’ve never seen a steel sump, as every car in Australia has AC.

[bacardincoke 48 1 Cars]

You've got my interest, for no reason than I just like the idea of an alloy one!

 

Had a look and originals / those from other models (Mi16?) are very thin on the ground, but there seems to be plenty of choice new.

 

Having said that I suspect they're mostly (if not all) for Diesels and too deep?

 

Some are showing as compatible, but I have my doubts, plus they give next to no detail on dimensions etc. to clarify

 

Think I'm correct in saying the 1.9 needs a shallower 125mm deep sump (mines certainly that), while the 1.6 is 140mm'ish because of the 15mm created by the spacer plate?

 

On a side note... there's what I'm guessing are witness marks on the inside base of my sump (and a dark circular shadow) caused by the 3x dimples on the bottom of the oil pump pick-up.

 

Is it normal for them to be that tight a fit (sump's undamaged)?

 

 

 

 

 

 

[SRDT 232]

The sump is indeed shallower to compensate for the "spacer".

The XU9J4/4Z is the only other engine to use the exact same alloy sump except on the 309 GTI16 since March 91. For this car Peugeot made an even more special sump with a trap door baffle.

[petert 630]

On this XU9J1, you can see how I've torqued down the spacer plate first. I've made an extended pickup for this engine, so I can use the spacer plate PLUS the deeper AC sump from an XU10J2/XU10J4, which has a baffled trap door. I would expect the same sump is fitted to AC XU diesel engines.

[bacardincoke 48 1 Cars]

When I first had a look for alloy sumps, wasn't expecting to have any luck.

 

Then a stack of them turned up, still available new and my heart took a leap... should have known better!

 

Despite what some of the sites will tell you (looking at you Autodoc) that some of them are compatible with my car ,they're all as Peter says apparently XU Diesel items and 140mm deep.

 

Shame as they seem to be cheap enough to give a try, but if the oil pump feed has to be adapted into the bargain, not really where I was wanting to go (at this stage anyway).

 

Thanks for the image of the sump spacer / bolt fixing layout, that'll be very useful to show what length bolt goes where.

 

I did record where my own went, but with this car there's obviously been (multiple) hands in lots of places before mine... means I've to double check everything's correct / assume nothing!

 

Just to get back to it... do we think my pickup is sitting as it should be, right up against / touching the bottom of the sump?

 

 

 

 

 

 

[bacardincoke 48 1 Cars]

Should have said... Found your site Peter, when Googling that image and in particular the wet sump oil control page, great read.

[DamirGTI 358]

Nothing wrong with steel sump , Id say better than aluminium in case of bumping onto various different objects on the road aka rocks after heavy rain and similar .

If it can't be missed/avoided steel sump will just suffer a dent wheres the alu. one will crack and leak .. 

 

Steel one is little bit dicky to seal though , non setting liquid sealant on the spacer/stiffener to block surface , and just good quality gasket without any additional sealant on the sump with just the bolts re-torqued after a few miles run works .. i do reccomend using torque wrench especially if you're not used to nip up the bolts by feel . 

 

Theres hex and allen head bolts , most od them same lenght but a few of them shorter , need to be arranged as follows : 

Edited November 16, 2025 by DamirGTI

[bacardincoke 48 1 Cars]

Just a passing whim, but not going to happen as it turns out and happy enough with the steel sump.

 

Thanks for the images, very useful... saved for when the time eventually comes to put things back together, cheers.