Keeping water out of the dizzy

General Chat with an emphasis on BMC Minis & Other iconic cars of the 1960's. Includes information on MK1 Action days.
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snoopy64
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Keeping water out of the dizzy

Post by snoopy64 »

Hi

I thought I’d already asked this but can’t find it….. what do you use to protect your electrics…?
Cheers

Kevin
hanlminiman
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Re: Keeping water out of the dizzy

Post by hanlminiman »

Keep out of the standing water :lol:
A rubber washing glove and a piece of plastic attached to the radiator above the oil cooler. There was a post on here about a piece of metal added to the back of the grille.
Not sure what the wading depth is for a Mini on 10" wheels but they did get through some serious standing water in period. :D
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snoopy64
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Re: Keeping water out of the dizzy

Post by snoopy64 »

I’ve still got a can of Damp Start…

Biggest issue is cars coming in the opposite direction creating surf .. I’ve had minis that are immune to water and others that really don’t like it!
Cheers

Kevin
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Re: Keeping water out of the dizzy

Post by hanlminiman »

In that case I think the shield behind the grille is good plus as I said the "glove" - but don't leave it on too long as mine melted.
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Spider
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Re: Keeping water out of the dizzy

Post by Spider »

Most of the distributor bodies have holes in the back of them that need to be sealed up and also the opening where the vacuum advance can is fitted. I've used small grub screws with loctite in the holes (being careful they are fitted too deep) and RTV between the can and the body. Then between the cap and the body, I use a non-setting mastic or a silicon grease.

While water does obviously come in from the front, a fair bit to a lot also finds it's way in from under, it's this that finds it's way in through the back of the body.

The other thing I found on test was the quality & fit of the boots on the HT leads to the cap and keeping the cap and boots clean.

Seems to work;-

https://www.youtube.com/watch?v=Bu0qGvVs9l8

and here the water was just on 500 mm deep

https://www.youtube.com/watch?v=CGi7IxZo8Ck
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mab01uk
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Re: Keeping water out of the dizzy

Post by mab01uk »

If you don't like the look of the later large plastic ignition shield which covers all the plug leads, spark plugs, etc, then I have always found this small black plastic splash shield that BL fitted behind the grille below the bonnet release, from around 1978 (on round nose Minis) works quite well to shield the distributor area.
It is secured with a couple of self-tapping screws and is moulded/shaped to clear the distributor cap.
They often went missing when garage mechanics lost/failed to refit them after a service or perhaps nicked them to fit to their own Minis! :lol:

Image

SPLASH SHIELD- IGNITION '78-'87
Part No: BHM773
https://www.somerfordmini.co.uk/splash- ... tion-78-87
gs.davies
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Re: Keeping water out of the dizzy

Post by gs.davies »

I’ve made provision to fit the late Mini full front engine splash guard. Depends on how you want to use the car I guess. I like driving mine and don’t like the idea of being caught out with soaked ignition.
minibitz
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Re: Keeping water out of the dizzy

Post by minibitz »

You've most likely got a Japanese spec injection car with air-con so there is no space for the shields already mentioned.

JDM spec SPI cars use a small flat piece of plastic that is held on with two clips to the underside of the bonnet closing part of the front panel. They are tiny, maybe 150mm x 120mm tops.

As long as you have decent fitting leads and cap you'll never have an issue without shield being fitted. I've never had a mini crap out in the wet as I keep the ignition system in good order.

Have done some very wet trips, like the Westland coast from Greymouth to Franz Joseph through the temperate rain forrests twice in torrential rain, and it absolutely buckets down there. Didn't miss a beat. Saying that none of the other 50 odd minis I was travelling at the time had any issues either.
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mk1
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Re: Keeping water out of the dizzy

Post by mk1 »

Or fit Gordon's replica of the original MK1 one.

https://shop.catmint.biz/product/distri ... d-14a9229/

When used in conjunction with one of these, you will be sorted for most scenarios.

http://www.minispares.com/product/Class ... o%20search
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Peter Laidler
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Re: Keeping water out of the dizzy

Post by Peter Laidler »

Another problem with a grille shield is that as you're driving along, deflecting the rain sodden air to the sides, immediately behind the shield a vacuum is being formed. And guess what happens next............

Yep, nature doesn't like vacuums, so the rain sodden air that is passing the sides of the shield - and up from the underside - closes in and soaks the distributor. It's better than nothing but it ain't the answer.

For me, I carry a water displacement spray and a bit of that super absorbent rag. Works a treat
Last edited by Peter Laidler on Sat Mar 23, 2024 12:56 pm, edited 1 time in total.
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