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[Larry S.]

Hello everyone -

Could someone tell me what the purpose of the heat shield is? 

There are actually two types listed in my parts book; #515597 - engine suffix A to H; and #587095 - engine suffix just onwards.  Mention is made of a couple versions for the toe box in the notes.

[Davidss]

... There are actually two types listed in my parts book; #515597 - engine suffix A to H; ...

Only answers part of your question - see this post.

You could also try a complete kit (of the later version) from Rovers North, note this comes in stainless steel.

Regards.

[Larry S.]

Only answers part of your question - see this post.

You could also try a complete kit (of the later version) from Rovers North, note this comes in stainless steel.

Regards.

I have a heat shield, it's installed. 

Everyone who sees it askes what its purpose is and I have no clue what to tell them.   Now the question has come up on Instagram.

[Wittsend]

As per another topic running on engine temperature.

I believe the heat shield is there to deflect heat away from the bulkhead and thus from heating the cab up.
(There was also a heat shield, optional If I remember correctly, for the exhaust pipe under the passenger foot plate.)
Hot air would also be deflected up and help stop the carb icing up, but I don't believe this was the reason for the shield.

 

[Larry S.]

As per another topic running on engine temperature.

I believe the heat shield is there to deflect heat away from the bulkhead and thus from heating the cab up.
(There was also a heat shield, optional If I remember correctly, for the exhaust pipe under the passenger foot plate.)
Hot air would also be deflected up and help stop the carb icing up, but I don't believe this was the reason for the shield.

 

Okay, that kinda makes sense.  It seems like it would also create a chimney affect and focuse heat up towards the carb.  Guess that coukd be a good thing in colder weather though.

[Peter Holden]

In the dim and distant past whe i ran series ones (they were affordable then), the exhaust came through the inner wing and down the footwell and under the passenger floor, if you didnt have the heat shields the heat on the footwell and floor could be unbearable (On a S1 petrol after a long uphill slog the exghaust manifold would be lowing red).

Peter

[andrewR]

I came into possession of one recently, so I thought I would fit it to an engine, mainly for the novelty and because it looks nice painted (although this paint may just burn up?!) It's aluminium.

My question is what is the "extra" piece of metalwork attached to the left hand side of mine, with a 1/4" UNF bolt? It came with that metal arm attached, although it was then positioned pointing straight down, coming to an end somewhere near the exhaust manifold connection to the 1st pipe section. Nothing was connected to the other end.

Anyone got any idea what that metal arm might have been used to support? I'll probably get rid of it unless I can work out any useful function for it. It doesn't appear in the diagram of heatshield in S3 parts catalogue, page 2C 02.

Andrew

[diffwhine]

That's a reinforcement plate which bolts across the back of the shield. I'm going to my store shortly so will photograph it.

[Dopey]

I have one also, I was told It's to keep the heat away from the carb.... (I have a Solex)

[andrewR]

Ah so that strut goes horizontal along the line of the three bolt holes and means I can remove one spacer spent some time making yesterday, and I need to shorten the other spacer I made, by the thickness of that strut. It'll slot along the back here....

[diffwhine]

This is it as taken off my engine for the rebuild. From memory, I think the one that is threaded into the bar is 5/16" UNF and the two that go through to the inlet manifold are UNC, but check - I might be wrong!

[Larry S.]

It's not the heat shield I was originally inquiring about, but, it is what it is.

The following should help out with the carb heat shield though.  When I installed one on Grover I had to source part no. 515505 and 515506; the nuts-n-bolts were still attached to the manifold.  Grover didn't arrive with a heat shield, but when I looked into what those extra nuts-n-bolts were I figured out he had had originally.  Fortunately I mentioned this to a Rover friend and he sent me one.

[Wittsend]

If anyone wants to have a go at making their own heat shield then here are the basic measurements ....






 

[Larry S.]

I just noticed I didn't get the part number changed in the original post - my fault.

Following are the heat shields that I was wondering about.

[Dopey]

The exhaust heat shield, Is to stop the pax from frying their feet, lol not got one on mine, I don't think it needs it tbh, it doesn't get that hot that you notice it