AFM to air box mounts

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garyinwestoz
Posts: 390
Joined: Thu Jan 29, 2009 9:05 pm
Location: perth, australia
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AFM to air box mounts

Post by garyinwestoz »

what have others done about the rubber mounts for AFM to airbox

these things

Image

made you own?

seems its a NLA part.

I measure
a rubber length of 27mm and 20mm dia
metal to metal of say 30mm and
overall length of 50mm
74 525 auto
76 525 - 4 speed, LPG and holley carb- restoring
77 528i- 4 speed manual
77 528i -4 speed manual getting rusty
79 528i auto - a SA car?
80 528i auto - ready to relicense
81 528i +3.5ltr - auto - restoring
86 525e 5 speed manual- dd
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Robert Bondi
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Location: Austin, TX

Re: AFM to air box mounts

Post by Robert Bondi »

I replaced those not long ago. I guess they weren't NLA yet.

However, these are sufficiently generic that I have a few sources you might try.

https://www.mcmaster.com/rubber-isolators
www.belmetric.com --> search for "rubber vibration isolator"

Don't know if that helps you in Australia, but I've seen enough choices that I think there is
something out there that should be close.
Robert
77 530i
77 Euro 528
garyinwestoz
Posts: 390
Joined: Thu Jan 29, 2009 9:05 pm
Location: perth, australia
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Re: AFM to air box mounts

Post by garyinwestoz »

Robert Bondi wrote: Fri Sep 04, 2020 2:01 am I replaced those not long ago. I guess they weren't NLA yet.

However, these are sufficiently generic that I have a few sources you might try.

https://www.mcmaster.com/rubber-isolators
www.belmetric.com --> search for "rubber vibration isolator"

Don't know if that helps you in Australia, but I've seen enough choices that I think there is
something out there that should be close.
good idea,

found this
https://www.mcmaster.com/rubber-isolato ... /height~1/

I looked for OZ - found this which is pretty close - but alas not available in Oz

https://www.newegg.com/global/au-en/p/0SV-004A-00FU2
74 525 auto
76 525 - 4 speed, LPG and holley carb- restoring
77 528i- 4 speed manual
77 528i -4 speed manual getting rusty
79 528i auto - a SA car?
80 528i auto - ready to relicense
81 528i +3.5ltr - auto - restoring
86 525e 5 speed manual- dd
Das_Prachtstrasse
Posts: 7
Joined: Tue Dec 17, 2019 5:52 am

Re: AFM to air box mounts

Post by Das_Prachtstrasse »

I use these guys for this type of thing, they’re based here in Melbourne. Shoot them an email.

https://www.mackayrubber.com.au/
‘89 e34 535iS
‘86 e28 Hartge Project
‘82 e12/28 M535i
garyinwestoz
Posts: 390
Joined: Thu Jan 29, 2009 9:05 pm
Location: perth, australia
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Re: AFM to air box mounts

Post by garyinwestoz »

Das_Prachtstrasse wrote: Sun Sep 06, 2020 4:54 am I use these guys for this type of thing, they’re based here in Melbourne. Shoot them an email.

https://www.mackayrubber.com.au/
thanks for that, I looked into it.

I reckon its part no M1025340 female/female for 30mm long, or M10202540 for 25mm long, in their Flexible isolator catelogue (Industiral section)
and
M6M6 multicushion studs ( M6 x1.0 x 21mm)

currently on special $9 each from Blackwoods normally $20

then I found flexliners https://www.rubberbuffers.com.au/anti_v ... tml#anchor AVMM-6131 M6 x 20 x 25mm long for $4 each so got 9 of them - 3 for each car.

here is a comparison photo - slightly shorter (3mm)- which I suppose can pack out with a thick washer

Image
74 525 auto
76 525 - 4 speed, LPG and holley carb- restoring
77 528i- 4 speed manual
77 528i -4 speed manual getting rusty
79 528i auto - a SA car?
80 528i auto - ready to relicense
81 528i +3.5ltr - auto - restoring
86 525e 5 speed manual- dd
garyinwestoz
Posts: 390
Joined: Thu Jan 29, 2009 9:05 pm
Location: perth, australia
Contact:

Re: AFM to air box mounts

Post by garyinwestoz »

even though the
https://www.mcmaster.com/rubber-isolato ... /height~1/

were only a $1.91 each, they came 25mm dia

where as the flexliner ones are 20mm dia, so I decided with flexliner, which were local pickup and I didn;t have to pay for international freight from McMaster - which can be quite a bit $$$$$ these days
74 525 auto
76 525 - 4 speed, LPG and holley carb- restoring
77 528i- 4 speed manual
77 528i -4 speed manual getting rusty
79 528i auto - a SA car?
80 528i auto - ready to relicense
81 528i +3.5ltr - auto - restoring
86 525e 5 speed manual- dd
garyinwestoz
Posts: 390
Joined: Thu Jan 29, 2009 9:05 pm
Location: perth, australia
Contact:

Re: AFM to air box mounts

Post by garyinwestoz »

I cut an end of the threads to 10mm, to fit into the AFM housing, and left the other end long - 18mm -this may need to be cut too. The old ones are 10mm long at each end.

I needed 2 x M6 washers to get the clearance between the AFM and the supporting bracket. I may use M8 washers which are bigger diametre than then the M6 ones.

Image

The AFM feels alot more connected and rigid now.

Image


This is a maintenance upgrade well worth it I think.

Now to do my other 2.
74 525 auto
76 525 - 4 speed, LPG and holley carb- restoring
77 528i- 4 speed manual
77 528i -4 speed manual getting rusty
79 528i auto - a SA car?
80 528i auto - ready to relicense
81 528i +3.5ltr - auto - restoring
86 525e 5 speed manual- dd
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