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Heat Shield for Ulster Rep

My Ulster Rep doesn't have a heat shield for the exhaust, which exits straight back next to the passenger. I have seen wrapped exhausts as well as aluminum shields. What are the preferences? I have considered the wrap but using woven titanium over fiberglass for better heat dissipation.

Location: Sunny Seattle

Re: Heat Shield for Ulster Rep

Erich, thought someone else would've answered this by now. I haven't got my Ulster at home just now to examine it but from memory its exhaust is wrapped in white heat resistant rope that I think you can obtain from Paul Beck or Vintage Supplies or one of the other suppliers. I also fabricated a bit of copper pipe round the exhaust by splitting it along its length and cutting it to shape. I anchored it by bending up a bit of the pipe upwards to make a lug in order to capture the N/S hood-frame swivel. Obviously once made I filed the edges to make them less sharp to avoid any passenger cutting his/her elbow. I'll try and find a photo and post it.

Location: Worthing

Re: Heat Shield for Ulster Rep

Thank you, James. I would love to see photos. Of course half the US is in shock right now.

Location: Sunny Seattle

Re: Heat Shield for Ulster Rep

 photo targa heat shield.jpg

Erich, to distract you from matters of almost equal importance I have found a picture of the shield I made (in a hurry at the last minute of course) for my friend Andy's car for the Targa Florio a few years ago. Under the aluminium I have riveted longitudinal strips of mild steel, each one about 1/8"x 1/2" and about 6" long with a set to crank it down near the end. I hope you can see some rivet heads on top of the shield behind Mike Peck's elbow (edited to add, no you can't on my computer but I'll email an enlargement to you if you need it). A jubilee clip secures the cranked end of the strip to the exhaust pipe; there is a hole in the shield to tighten the aft clamp. It's crude but it didn't fall off and could have been neater if I'd had more time.
I'm not sure which of us took the photo but I think it must have been Graham Beckett.

I have looked at some other photos and notice that, for the Mille Miglia the year before we didn't bother. I think we fitted the shield out of caution, not because anyone caught fire!
It has been a struggle to load this from Photobucket, assuming it works. If you need to have any more detail feel free to email.

Or, wrap your passenger in something heatproof?

Regards, Stuart

Re: Heat Shield for Ulster Rep

Erich, I think the whole World is shocked at this Brexit +++ result, polls wrong yet again. Back to more sane matters !? This is the best photo I could find, on reflection I might have continued it round the bend...but thought at the time it would look odd. If it still doesn't make sense I'll attempt to draw it and send it by email.

 photo DSC00230 2_zpsgwyuazlc.jpg

Looking at it again, I utilised the rear support too (in addition to attaching it to the hood swivel at the front). I remember someone quite famous in the A7 Ulster World coming up to me and saying 'that the exhaust should be supported by the wing at the rear' ... well that wasn't correct because when the car was stripped for racing trim which included removing the wings and running boards, the exhaust would have had lost its support ! (I can supply photos to support this but they don't show the bit we're discussing)

Location: Worthing

Re: Heat Shield for Ulster Rep

Thank you Stuart and James. I don't have a provision for a hood, so no pivot point. I was thinking I could just use hose clamps to tie the ends on. Rather than Jubilee clips, I was going to use wire type hose clamps, as I think that those look more period. Although Jubilees date to the '20s are there other clips that would be period correct. I have to say, that not having the car yet, I don't know how or if the pipe is supported on the cycle wings.

Location: Sunny Seattle

Re: Heat Shield for Ulster Rep

Ah, having looked at James's post I now see what sort of heat shield you mean. Is it intended to keep the heat away from the erected hood? Not quite sure what accident it is designed to prevent! Oh well, it's taught me not to bother with Photobucket in future.

regards, Stuart

Re: Heat Shield for Ulster Rep

On my Ulster Rep I bound the exhaust pipe with fibreglass tape which is about 1 1/2" wide. I used white tape but I think it is also available in black. To fit it, first you soak it in water, then starting at the rear you work forward overlapping the tape so it ends up double thickness. The ends are secured by jubilee clips or something similar. As it dries and heats up it tightens and the whiteness soon mellows with age.

Re: Heat Shield for Ulster Rep

Stainless steel cable ties make a very neat and unobtrusive way of securing the ends

Re: Heat Shield for Ulster Rep

Paul Beck's Vintage Car Parts offer a couple of period style hose clamp options:

https://www.vintagecarparts.co.uk/products/ca1454-enots-hose-clip-hose-clamp

https://www.vintagecarparts.co.uk/products/726-nesthill-hose-clip-hose-clamp

Also see the article 8 posts down on this thread below 'Re WW1 Dennis truck find' showing photos of some stainless steel turbo hose clamps meant for custom cars given the period look by replacing the nuts with Number 3 brass wing nuts suitably plated.

http://hmvf.co.uk/forumvb/showthread.php?429-WW1-Dennis-truck-find/page54

Jeff.

Location: Almost but not quite, the far North East of England

Re: Heat Shield for Ulster Rep

This is great information. Thank you all. I curious to know of the wrapping would be enough insulation(to keep from getting burned) or if the heat shield does that. If the latter is to keep the passenger from getting torched, what is the purpose of the wrap?

Best,

Erich

Location: Sunny Seattle

Re: Heat Shield for Ulster Rep

Erich - I just have wrap on mine and, so far, it has been sufficient.

Re: Heat Shield for Ulster Rep

The modern wrap is intended for under bonnet use on competition cars and will stand very high temperatures. My Ulster exhaust got extremely hot but with the wrap you could lean against it with your bare backside.

Re: Heat Shield for Ulster Rep

Malcolm Parker
but with the wrap you could lean against it with your bare backside.


And I am supposed to be able to sleep tonight after reading this!!!

Re: Heat Shield for Ulster Rep

Malcolm, is there something about driving an Ulster that I may have missed? Most photos I have seen show drivers and passengers fully clothed!

Location: Sunny Seattle

Re: Heat Shield for Ulster Rep

This pic is VE just after we finished it's resurrection in the late 70's.



The exhaust was wrapped with fire rope, probably asbestos, and painted with white 'Smoothriite'.

In the 80's when I built the clone, PL 9594, I used fire rope again, but this time fibre glass, again painted with white 'Smoothrite'.

The rope can be bought at most serious builders merchants for a few pence per metre.

Re: Heat Shield for Ulster Rep

Re: Heat Shield for Ulster Rep

Malcolm Parker
The modern wrap is intended for under bonnet use on competition cars and will stand very high temperatures. My Ulster exhaust got extremely hot but with the wrap you could lean against it with your bare backside.


Those that know us will appreciate that Malcolm and I are very good friends. Sometimes, however, I do despair of him.........

However, having seen (but not tested in the way Malc suggests) his exhaust wrapping, I do agree that it's all that's needed.

We do have some experience of what can happen with an uncovered exhaust, Malcolm having melted the palm of one of his new gloves some years ago when he grabbed the uncovered exhaust of a Special I had at the time during a trial.

The melted glove remnants took forever to get off the exhaust....

Steve

Location: North Yorkshire

Re: Heat Shield for Ulster Rep

The ownership of an Ulster replica and naturism are obviously not compatible.

Seared sweetbreads on the menu tonight!