Engine mud shield / radiator cowl ?

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Not_Anumber
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Engine mud shield / radiator cowl ?

Post by Not_Anumber » Tue Oct 20, 2020 7:08 pm

The engine mud shield on mine ended up being binned by my pal when working on the front end a couple of years ago. It went complete with it's brackets and fixings so Im not clear on what i need to buy to replace it or fit it with

Could this be a good opportunity to fit a stainless steel aftermarket one which looks rather good or does everyone go for a straight replacement waxed cardboard one from the MGB Hive or an ABS plastic equivalent from Moss ?

Ian Fozzard
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Re: Engine mud shield / radiator cowl ?

Post by Ian Fozzard » Tue Oct 20, 2020 8:52 pm

I don't recall ever seeing one of these, certainly never had anything similar on my '72.
I am guessing these are aftermarket "improvements"?

Ian F
1972 BGT, Blaze, Navy trim, recessed grill
1961 Midget, 948cc, Clipper Blue, Blue trim and weather gear

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Mnripley
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Re: Engine mud shield / radiator cowl ?

Post by Mnripley » Tue Oct 20, 2020 9:24 pm

Does the mud shield also effect under bonnet cooling mine is also missing, have thought about fitting the stainless unit?

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Trouble Monkey
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Re: Engine mud shield / radiator cowl ?

Post by Trouble Monkey » Tue Oct 20, 2020 9:34 pm

I believe it helps direct air flow through the radiator - rather than round the bottom of it. Certainly cant hurt to have one. Also, the chrome ones look good!

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Charles Farran
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Re: Engine mud shield / radiator cowl ?

Post by Charles Farran » Tue Oct 20, 2020 10:47 pm

There is a mud shield that is tailored to the later rubber bumper cars where the radiator is brought forward .The original was a stiff board mounted to the chassis rails with special brackets. There is a board type sold by MGOC, a smart black plastic / laminate (?) one by Moss ( which never seems to be available ) & a stainless steel one by various suppliers if you look on ebay. The fitting kit is separate.I was disappointed with ghe qualityof the board type supplied by MGOC including the cutting of the board shape as supplied so refurbished the original.
Cheers , Charles
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Ian Fozzard
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Re: Engine mud shield / radiator cowl ?

Post by Ian Fozzard » Wed Oct 21, 2020 9:17 am

Thanks Charles. Not something I've seen before. Do you think it serves a critical function (air flow, keeping things clean?) or did you fit it to maintain originality?
Ian F
1972 BGT, Blaze, Navy trim, recessed grill
1961 Midget, 948cc, Clipper Blue, Blue trim and weather gear

Not_Anumber
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Re: Engine mud shield / radiator cowl ?

Post by Not_Anumber » Wed Oct 21, 2020 9:42 am

Thanks.

I do wonder if the mud shield/ undertray was introduced on the late RB cars to restore directed airflow to the rad otherwise lost when the radiator was moved and the sealing strip above it removed.

The brackets and fixings on mine aren't in a good way so I spoke to the chap who makes the stainless steel mud shields and agreed £ 75 delivered for a stainless mud shield and a pair of stainless brackets with the fixing studs and nuts. I'l report back when it arrives.

Chris

Ian Fozzard
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Re: Engine mud shield / radiator cowl ?

Post by Ian Fozzard » Wed Oct 21, 2020 10:00 am

Thanks Chris. Let us know if it seems to make any difference!

Ian F
1972 BGT, Blaze, Navy trim, recessed grill
1961 Midget, 948cc, Clipper Blue, Blue trim and weather gear

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Charles Farran
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Re: Engine mud shield / radiator cowl ?

Post by Charles Farran » Wed Oct 21, 2020 11:22 am

Ian,
I don't think it's critical for air flow for the later RB cars with forward radiators, whereas i know with earlier MGBs where the radiator is situated further back and very close to the engine that shrouds, either original or after market assist in cooling.
The mud shield certainly helps to keep the front of the engine & engine bay clean & reduce the amount of water / spray / mud in bad weather that would inevitably potentially soak the electrics under the bonnet. (I well remember my first car (an old Morris 1100) conking out after driving through torrential rain when it drenched the distributor just behind the front grill - different location i know with regards to the MGB - but the principle still applies)!
Chris, I would suggest you loosely fit the shield before putting in all the plumbing etc. as i found it not that easy to fit a pliable original board back in without catching either the back of the rad / front of the engine etc. (all of which had been freshly painted) so it might be somewhat more difficult with a stainless steel version.
Cheers
Charles
1980 Roadster

Ian Fozzard
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Re: Engine mud shield / radiator cowl ?

Post by Ian Fozzard » Wed Oct 21, 2020 11:30 am

Ah! Austin 1100s and wet weather☹️ !

My better half had one in the early '70's. We sprayed the exposed distributor with all sorts of stuff, and eventually wrapped it in a plastic bag!!

Ian F
1972 BGT, Blaze, Navy trim, recessed grill
1961 Midget, 948cc, Clipper Blue, Blue trim and weather gear

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