Series 2 Exhaust lower heatshield

Candellara · Post by **Candellara** » Mon Feb 03, 2014 12:34 pm

I seem to be missing the heatshield / stoneguard that sits underneath the brake servo and cannot locate a part number

I think it should look similar to this:

http://www.ebay.co.uk/itm/Jaguar-E-Type ... 1388916972

Does anyone know the correct part number for a Series 2 FHC? and associated clamps etc?

chrisvine · Post by **chrisvine** » Mon Feb 03, 2014 5:48 pm

The part no C25101 - although this doesn't protect the servo as it sits under the gearbox:

http://www.sngbarratt.com/CatalogueProd ... 26&a=17232

I got one of Dave Kerr's kits. It only needs a slight modification for the S2 as the rear attachment needs be fixed longitudinally rather than at an angle. But it's very easy to change:

http://etypeuk.com/forum/viewtopic.php?t=1657

PeterCrespin · Post by **PeterCrespin** » Mon Feb 03, 2014 7:16 pm

Candellara wrote:I seem to be missing the heatshield / stoneguard that sits underneath the brake servo and cannot locate a part number

The servo heat shield is a vertical plate between the horizontal left frame rails, shielding the downpipes to the right of the servo. There should be a thin alloy 'stoneguard' or mudshield under the servo on the left and under the air filter/oil filter on the right, but this has no heat shield effect.

Pete

Candellara · Post by **Candellara** » Tue Feb 04, 2014 10:04 pm

Ok, i think i've located what "should" be fitted and it runs underneath the brake servo area and affixes to the sill under the battery carrier.

After speaking to a few "specialists", many say - leave it off as it helps keep the under bonnet temperatures lower? i.e exhaust manifold heat escape more effectively

Candellara · Post by **Candellara** » Wed Feb 12, 2014 8:38 am

Hi Chaps,

I went ahead and ordered the part. On the S2 it bolts to the lower sill under the battery carrier, affixes to the N/S stoneshield and along the lower engine frame next to the exhaust manifold.

It was supplied with a rubber strip which sandwiches between the engine frame and the shield but - is this normal?

I'm concerned that this area of the engine frame gets very hot and may melt the rubber / be a fire hazard?

Dave K · Post by **Dave K** » Wed Feb 12, 2014 4:53 pm

I think the rubber part is used to cover torsion bars and protect them from road debris originally they were canvas.
I haven't seen them fitted to may restored cars.

Dave

Candellara · Post by **Candellara** » Wed Feb 12, 2014 5:14 pm

Dave K wrote:I think the rubber part is used to cover torsion bars and protect them from road debris originally they were canvas.
I haven't seen them fitted to may restored cars.

Dave

Thanks Dave

I think i'll opt to leave the rubber out and just affix the stone-shield via the clamps without the rubber

Post by **Heuer** » Wed Feb 12, 2014 5:54 pm

You need to get Angus's view on this. He was telling me recently about the rubber strip between the shield and frame - there for a very good reason it would appear.

chrisvine · Post by **chrisvine** » Wed Feb 12, 2014 6:41 pm

The S2 parts manual has canvas/rubber pads listed for both the undershield you mention and also the torsion bar deflector shields

PeterCrespin · Post by **PeterCrespin** » Wed Feb 12, 2014 7:16 pm

All stone shields/mud shields for S1 & 2 have a strip of rubberised canvas tape to prevent metal-to-metal contact. The heat shields don't, but we;ve established that we are not now talking about heat shields.

I think it's a vibration dampener (anti-rattle) and probably to prevent fretting contact which would eventually set up a corrosive galvanic cell presumably in wet weather. Frame metal is not very thick and is highly stressed so you don't want avoidable corrosion on the skin.

Strange mindset to purposely not fit something that comes with new parts?

Pete

Candellara · Post by **Candellara** » Thu Feb 13, 2014 8:55 am

PeterCrespin wrote:All stone shields/mud shields for S1 & 2 have a strip of rubberised canvas tape to prevent metal-to-metal contact. The heat shields don't, but we;ve established that we are not now talking about heat shields.

I think it's a vibration dampener (anti-rattle) and probably to prevent fretting contact which would eventually set up a corrosive galvanic cell presumably in wet weather. Frame metal is not very thick and is highly stressed so you don't want avoidable corrosion on the skin.

Strange mindset to purposely not fit something that comes with new parts?

Pete

Tough call Pete. The original part was canvas but this is no longer made and rubber is now used - the same as the inner stone=-shield rubbers.

I am worried that with the heat generated from a tubular manifold that this may melt and be a fire hazard. I guess i could fit and keep my eye on it.

What does everyone else have fitted?

PeterCrespin · Post by **PeterCrespin** » Fri Feb 14, 2014 2:10 am

The original was a rubberised canvass but still.

I think there is no risk that your frame tubes are going to get so hot that they will burn a strip of rubber attached to a large aluminium heat sink and fixed to the opposite side of those tubes from the exhaust side

. If it's an issue you could get a strip of canvass sold for bonnet landing seals on vintage cars. I *think* Woollies do some in various widths. If not, try the real vintage trim specialists, it's a common part on pre-war and veteran cars.

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