Technical 100 HP Sump Guard

[Whippet]

Went for a drive yesterday and I could hear a scraping sound as I travelled over a couple of speed bumps. When I got home I had a look under the car and noticed that the sump guard was sporting a few abrasion marks.
The sump guard is secured at the front and rear, however I did note that there is a hole near to the centre of the guard which I'm assuming once held a bolt. There's quite a bit of play and it's fairly obvious that the cover has dropped. Can someone confirm for me if I am indeed missing a bolt and does anyone know it's size. I would assume it's around 8mm but don't have a clue re its length. I'd rather replace the thing myself rather than pratt around visiting the dealer etc.

 

[D4nny8oy]

1 = Fixing points.

 

[doctorchris]

That looks likes a girl's plastic undertray to me.
Only Panda 4x4s have sump guards, fearsome steel plates the thickness of battleship hulls, they are. You'd know about it if one of those was falling off.

 

[Whippet]

Thanks for the image D4nny.
I can see that there's no fixing point for a central bolt and therefore I haven't lost a bolt. Still don't understand why the guard has made contact with a speed bump. Not to worry, I guess it's doing it's job.

 

[Herts Hillhopper]

You'll know this already, but for those that don't you get more ground clearance if you're not on the brakes as you hit the bump. Brake before, and just before bump, release brakes. this uncompresses the springs, gaining a bit of height and also makes a much smoother journey
P

 

[HP]

Thanks for the image D4nny.
I can see that there's no fixing point for a central bolt and therefore I haven't lost a bolt. Still don't understand why the guard has made contact with a speed bump. Not to worry, I guess it's doing it's job.

Might be because there isn't an incredible amount of ground clearance.

 

[Andy Monty]

You'll know this already, but for those that don't you get more ground clearance if you're not on the brakes as you hit the bump. Brake before, and just before bump, release brakes. this uncompresses the springs, gaining a bit of height and also makes a much smoother journey
P

I did that on one of my early driving lessons in roadworks where there was a change in level It was a big enough bang to loosen your fillings....

 

[PNL]

Question here and that is ..is it actually a sump guard or another under tray as fitted to other fiats..I think its just an under tray and not so much a guard..:chin:

 

[trackdayqueen]

Question here and that is ..is it actually a sump guard or another under tray as fitted to other fiats..I think its just an under tray and not so much a guard..:chin:

DING. It's only flimsy plastic so won't offer any serious protection, but then just about every other car is like this. So I wouldn't call it a sump guard.

 

[ScoobyChris]

On a slightly related note, the screws holding the one on my Fabia in place rusted through eek resulting in the rear of the tray falling down and being rather noisily dragged along the road unless I did upwards of 65mph!

Certainly a great way of attracting attention driving through town

As far as I can tell from looking at it when it was off the car, it's main purpose is to stop dirt getting onto the engine and also as a bit of sound deadening.

Chris

 

[PNL]

As far as I can tell from looking at it when it was off the car, it's main purpose is to stop dirt getting onto the engine and also as a bit of sound deadening.

Chris

Also makes the car more air dynamic..

 

[Whippet]

Might be because there isn't an incredible amount of ground clearance.

Just to clarify... I've been over the same bumps before today and not had this happen before. The speed bumps in question are a little unusual in that they face up the road as opposed to across it. They don't really serve much purpose as any car can quite easily straddle the bump.
I think on this recent occasion I must have travelled centrally over the bump.
The guard, tray or whatever else you want to call it has a moulded projection that covers the manifold down pipe, which, is central to the vehicle. It is this projection, if that's what I can call it, that has made contact with the bump.

 

[doctorchris]

Interesting tale about VAG cars and their plastic undertrays. These items are very big, cover the whole underside of the engine compartment and have numerous fixings. They also have no hole or removable panel for oil changes. Hence the cars have their oil sucked out through the dipstick orifice when they are serviced.
Not a lot of people know that.

 

[ScoobyChris]

They also have no hole or removable panel for oil changes. Hence the cars have their oil sucked out through the dipstick orifice when they are serviced.
Not a lot of people know that.

They do?! They're supposed to have the plastic undertray removed and be drained through the sump.....

Chris

 

[HP]

Plastic undertrays hanging off - if you've ever owned or seen an Alfa 156, this shouldn't be a surprise!

 

[Cookecarey]

View attachment 53609

1 = Fixing points.

Anyone know whether the 100hp Undertray will fit a 2010 1.3 Multijet?

 

[LeanMeanRacing]

Here's a photo of mine for your reference:

 

[Cookecarey]

Thanks LMR, for the very quick reply from the photo it appears to have fixing slots in all the right places, any idea of the Part No?
Best Regards,
CC

 

[LeanMeanRacing]

Sorry, I don't know the part number and there's no way I'm braving this rain to crawl underneath to find it!

 

[laverda]

The number is : 51785845