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Underbonnet (hood) water deflectors.

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ron
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Underbonnet (hood) water deflectors.

Post by ron » Sat Jun 26, 2021 7:08 pm

This is where it fits.
P1030795.JPG
P1030795.JPG (4.31 MiB) Viewed 3969 times
Investigating the 3D printing of the L/H/S water deflector. There is no part number and it doesn't appear in the parts breakdown.

P1030671.JPG
P1030671.JPG (3.57 MiB) Viewed 3969 times
P1030672.JPG
P1030672.JPG (3.46 MiB) Viewed 3969 times

Also printing a "handed" version for the R/H/S.

Please register interest.
They are ALWAYS rustier than you thought!!!!!!
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Re: Underbonnet (hood) water deflectors.

Post by bpoliakoff » Sat Jun 26, 2021 10:16 pm

Hello Ron

Have you an idea of price?
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Re: Underbonnet (hood) water deflectors.

Post by K1W1 » Tue Jun 29, 2021 4:21 am

Yep, interested. Thanks Julian
# 328 RHD M635csi 1986 Dinan 3.8
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Re: Underbonnet (hood) water deflectors.

Post by anchored » Tue Jun 29, 2021 2:31 pm

Already done!

I will say this part 3d printed is subject to high temps that can push it into glass transition temp territory even for ABS since the part is thin.

I have been running it for a year in the ATL sun and its done ok, but I don't leave my car outside often.

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Re: Underbonnet (hood) water deflectors.

Post by tmoretta » Tue Jun 29, 2021 11:07 pm

What is the purpose of the part?

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Re: Underbonnet (hood) water deflectors.

Post by sharkfan » Thu Jul 01, 2021 2:40 pm

tmoretta wrote:
Tue Jun 29, 2021 11:07 pm
What is the purpose of the part?
It deflects the water from falling directly onto the rubber grommets where the large cable looms come through from the cabin into the fan/wiper/ABS ECU scuttle area.

Put me down for a right hand and left hand pair please.
2001 Alpina B10 V8 Touring (1 of 12 rhd)
1997 Alpina B12 5.7 L (1 of 2 rhd)
1995 Alpina B10 4.6 Touring (1 of 1 rhd)
1985 BMW M635CSi (1 of 524 rhd)
1982 BMW 635CSiA (1 of 100's left from the 1000's made and still valiantly fighting against a rusty grave)

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Re: Underbonnet (hood) water deflectors.

Post by BenM635i » Fri Jul 02, 2021 7:47 am

Never seen this before, my RHD doesn't have one fitted.. now have seen it I want one!

If a run is done Ron, put me down for one please.
'85 M635 #160

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Re: Underbonnet (hood) water deflectors.

Post by sharkfan » Fri Jul 02, 2021 8:49 am

BenM635i wrote:
Fri Jul 02, 2021 7:47 am
Never seen this before, my RHD doesn't have one fitted.. now have seen it I want one!

If a run is done Ron, put me down for one please.
You'll want a pair.
2001 Alpina B10 V8 Touring (1 of 12 rhd)
1997 Alpina B12 5.7 L (1 of 2 rhd)
1995 Alpina B10 4.6 Touring (1 of 1 rhd)
1985 BMW M635CSi (1 of 524 rhd)
1982 BMW 635CSiA (1 of 100's left from the 1000's made and still valiantly fighting against a rusty grave)

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Re: Underbonnet (hood) water deflectors.

Post by Ronnie Wilson » Fri Jul 02, 2021 10:24 pm

Hi Ron

Should there be one on both sides. Replaced my intensive water bottle pump and noticed it has no protection from the rain. I just have a deflector on the passenger side.
Ronnie
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1986 635csi.
Bronze Beige Metallic.

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Re: Underbonnet (hood) water deflectors.

Post by ron » Sat Jul 03, 2021 6:40 am

Hi Ronnie,

Have never seen a R/H one.

Best regds.
They are ALWAYS rustier than you thought!!!!!!
'85 M #228
'87 M #367
'88 High line.
'10 X5
‘84 Alfasud 1.5 ti

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Re: Underbonnet (hood) water deflectors.

Post by olympia57 » Sat Jul 03, 2021 8:02 am

Left hand one for me Ron .
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Re: Underbonnet (hood) water deflectors.

Post by sharkfan » Sun Jul 04, 2021 8:22 am

I was looking at the drivers side of my RHD M635 the other day. There is no protection for the intensive water pump or large cable grommet, and simply putting an mirror image of the nearside type would do very little to provide protection. If I get time and I'm bored I might wander out to my garage with a beer*, a piece of cardboard and a pair of scissors and see what shape might work.

*The beer is essential for cerebral lubrication
2001 Alpina B10 V8 Touring (1 of 12 rhd)
1997 Alpina B12 5.7 L (1 of 2 rhd)
1995 Alpina B10 4.6 Touring (1 of 1 rhd)
1985 BMW M635CSi (1 of 524 rhd)
1982 BMW 635CSiA (1 of 100's left from the 1000's made and still valiantly fighting against a rusty grave)

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Re: Underbonnet (hood) water deflectors.

Post by BenM635i » Mon Jul 05, 2021 5:40 pm

sharkfan wrote:
Sun Jul 04, 2021 8:22 am
I was looking at the drivers side of my RHD M635 the other day. There is no protection for the intensive water pump or large cable grommet, and simply putting an mirror image of the nearside type would do very little to provide protection. If I get time and I'm bored I might wander out to my garage with a beer*, a piece of cardboard and a pair of scissors and see what shape might work.

*The beer is essential for cerebral lubrication
I have my best ideas after beer.. wake up the next day with surprise eBay purchases and a long list of new hobbies.. gets me no end of telling off by the lady.

Got a mate with a 3D printer so if Anchored wouldn’t mind sending the model file over we could try printing them here in the UK .. them maybe flip the model for the RHS, might work?
'85 M635 #160

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Re: Underbonnet (hood) water deflectors.

Post by anchored » Mon Jul 05, 2021 6:13 pm

Message me and I can drop you the file.

Will need to be printed in PETG at the least. ABS would be best.
SHRKATK - Red 87' 635csi

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Re: Underbonnet (hood) water deflectors.

Post by BenM635i » Mon Jul 05, 2021 8:05 pm

What a gentleman, thanks and email sent.

I’ll ask friend to look over the file and do a test print... yours looks good so fingers crossed we can make them work this side of the pond.
'85 M635 #160

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Re: Underbonnet (hood) water deflectors.

Post by wattsmonkey » Thu Jul 08, 2021 5:49 pm

This sounds very exciting!
"Most of it necessary; all of it enjoyable." LJKS
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Re: Underbonnet (hood) water deflectors.

Post by BenM635i » Fri Jul 09, 2021 4:15 pm

Anchored kindly sent the file over and mate is going to look into ABS printing this weekend.

He has printed stuff for me before but not in ABS which i believe is harder to do as its very temperature sensitive.. Anchored pointed out that we may have problems printing the thinner part of these deflectors in ABS so will just have to have a go and see what happens.

Mate says he needs some form of cover for his printer so as to keep the heat in.. been toying with the idea of getting a 3d printer and stuff like this makes it harder to hold off ordering one from alibaba :D

Will try to get the LHS one printed then we can look to modify the model for the RHS so as to give more protection. Just need card, scissors and beer ;)
'85 M635 #160

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Re: Underbonnet (hood) water deflectors.

Post by sideshowbob » Sun Aug 15, 2021 5:37 pm

Hi,
Was at Silverstone Classic a few ago as we were leaving there was a torrential downpour, and to my surprise I noticed as I was driving water was coming in to the passenger compartment and going over my legs !!

I think I know why now...my car has no deflectors and I think it needs them.

Put me down for a left and right....thanks !!

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Re: Underbonnet (hood) water deflectors.

Post by BenM635i » Wed Aug 25, 2021 1:42 pm

Been a while but friend has finally got himself a 'tent' to keep the heat in the 3d printer .. apparently this is needed for ABS printing.

His first attempt, needs some work as the print failed after 5 hours:

water shield ABS MKI.png
water shield ABS MKI.png (1.74 MiB) Viewed 2524 times

Have asked him to have another go, lets get the nearside one sorted then we can work out a modification for the off side.
'85 M635 #160

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Re: Underbonnet (hood) water deflectors.

Post by 86_6series » Thu Aug 26, 2021 11:59 am

sideshowbob wrote:
Sun Aug 15, 2021 5:37 pm
Hi,
Was at Silverstone Classic a few ago as we were leaving there was a torrential downpour, and to my surprise I noticed as I was driving water was coming in to the passenger compartment and going over my legs !!

I think I know why now...my car has no deflectors and I think it needs them.

Put me down for a left and right....thanks !!
I would check the harness grommet in the cowl as well as grommets down the firewall.

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Re: Underbonnet (hood) water deflectors.

Post by jonty72 » Wed Dec 08, 2021 7:21 pm

Hi

Can anyone please advise if they managed to 3D print the hood deflectors and cost to buy one. :D

Cheers

Jason
1986 E24 635Csi Diamantschwarz Metallic RHD
2015 F32 428i Alpine Weiss

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Re: Underbonnet (hood) water deflectors.

Post by anchored » Thu Dec 09, 2021 6:23 pm

Would be expensive to ship to you.

I can provide the file and you can source it locally.
SHRKATK - Red 87' 635csi

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Re: Underbonnet (hood) water deflectors.

Post by Jlc » Tue Dec 14, 2021 8:37 pm

My 85 doesn’t have them. I wonder if they are year specific as the Po was pretty good about upkeep
85 635CSi Bronzit

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