Terry,
I got ya now. Pretty sure that the engine mounts go out on an angle towards
the engine so the area you're referring to should be behind the mount
itself.
This pic gives a better idea of that
http://sr510.com/gfy/top_angle.jpg
and another for good measure
http://www.sr510.com/gfy/another_angle.jpg
I'll definitely check it out as i hadn't even noticed that so thanks for
pointing it out.
cheers,
Adam
----- Original Message -----
From: "Terry Rudd" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, June 15, 2006 3:45 AM
Subject: RE: shaving the engine mounts?
Adam,
You doing the swing shift too? On the photo it looks like the clearance
between the bottom of the turbo housing and the flat bit at the bottom of
the mount that the bolts go thru (just above the rubber insulator) is
close.
There's a hose clamp in there too, but that looks like it's behind the
mount
and not in play. It may be just the angle of the photo but it doesn't look
like there's 50mm clearance in the photo. When you check it out, draw a
line
between what moves with the engine, and what is bolted to the chassis i.e.
the static bit. If you do decide to weld in the brace make sure you run a
vertical weld up either side of the plate, with the welded method it will
be
the first thing an engineer looks at if they see the mount has been
modified. Most times they don't see the modification to OEM mounts if it
looks stock - you're nearly always 101% there if it looks nice as well as
being sound for you're peace of mind. I've seen some mods get knocked back
that were structurally 100% sound but looked fugly - go figure.
Regards,
Terry
-----Original Message-----
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of Adam Jackson
Sent: Thursday, 15 June 2006 2:50 AM
To: [email protected]
Subject: Re: shaving the engine mounts?
Hi Terry,
I'm not quite sure I understand where abouts you mean with regards to the
housing hitting the static part of the mount?
Do you mean the X member where the rubber part of the mount is sitting?
That's a good 40 or 50mm from the housing, but i'll check it out in
anycase.
Thanks for the reply - i'll definitely weld in a new brace and be sure to
paint everything up so it looks OEM ;)
cheers,
Adam
----- Original Message -----
From: "Terry Rudd" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, June 15, 2006 2:19 AM
Subject: RE: shaving the engine mounts?
Morning folks,
Nice dryer. I can't see much problem with shaving the mount in this
case
as
it looks like an OEM mount as opposed to a backyard purpose built one. It
doesn't require much clearance in that area - 5mm is ample as the mount &
the turbo will move in the same plane at all times - you do get a small
amount of flex thru the manifolds but it's minimal.
If you're worried about the integrity of the mount post shaving I'd
suggest
that you weld a small brace on the inside between the vertical plates or
an
easier method to brace it is to use a decent size bolt eg 8mm thru either
a
round or square tube that's positioned flush between the inner vertical
surfaces - either method is acceptable for racing engines so rego
shouldn't
have a drama with either. The position of the reinforcing brace would be
say
25mm i.e. around half way from the bottom of the mount.
Any time I've been required to shave a mount I always repaint it etc
to
make
it look like it's not just been hacked with a grinder - if it looks like
it's been hacked then it probably has been in the minds of most
engineers.
Actually from looking at the photo, I'd be more worried about the
clearance
between the static part of the mount (i.e. below the insulator) and the
housing when the engine moves at WOT on the mounts. Hard to say from the
pic
how much static clearance there is there but it needs to be at least
10mm.
Heat will not be a factor in this case as far as I could tell from the
pic.
Have fun with it,
Regards,
Terry
-----Original Message-----
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of Mick Ralph
Sent: Wednesday, 14 June 2006 5:26 PM
To: [email protected]
Subject: Re: shaving the engine mounts?
Adam
I would be inclined to get out the grinder in this situation. But then
I'm usually a bit quick to get out the grinder so.... usually I ask
here first.... so I guess ur on the right track My issue here is with
how much clearance do u actually need. If for example the mount on the
other side was a bit soft (old or new?) then u would probably need
more clearance on the turbo side. Having seen a lot of engines
misfiring over the years, and seen
what it can do to the clearances we are talking about here my GUESS would
be
at least 20mm clearance. having stuck my neck out I would also imagine
that
Terry or Errol et al would have some sort of formula for working it out
properly Cheers Mick
PS Aren't digital cameras a blast
----- Original Message -----
From: "Adam Jackson" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, June 14, 2006 4:46 PM
Subject: Re: shaving the engine mounts?
Jeff,
I can't see how there would be. Most of the heat is generated at the
exhaust
turbine end and exhaust manifold. The compressor housing is alot
closer to the engine mount rubber, but not as close as the pic makes
out - ie the turbo sits back towards the firewall aswell ( the mount
is infront of the compressor housing) - can't see the depth from that
image.
cheers,
Adam
----- Original Message -----
From: "Jeff" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Wednesday, June 14, 2006 4:24 PM
Subject: RE: shaving the engine mounts?
> Adam,
>
> any ssue with heat from the turbo affecting the rubber part of the
engine
> mount ?
>
> Jeff
>
>
>
>
>
>
>
> -----Original Message-----
> From: [email protected]
> [mailto:[EMAIL PROTECTED] Behalf Of Adam
> Jackson
> Sent: Wednesday, 14 June 2006 3:52 PM
> To: [email protected]
> Subject: shaving the engine mounts?
>
>
> Hi Guys,
>
> Well got my gasket and went to put the turbo on and got all the
> little bastard water and oil bolts in and then I discovered that
> the compressor housing touches the engine mount.
>
> You may need to copy and paste this link into your browser...
> http://www.sr510.com/gfy/no_mofoing_room.jpg
>
> As you can see, it's just touching - the manifold is nearly
> completely flush. I'm considering shaving a couple of mm off of the
> engine mount (probably 3 or 4mm). Having a look, I can't see how it
> would effect the integrity of the mount. Anyone care to let me know
> if this is a really
bad
> idea or not?
>
> I don't really want to go for top mount and personally really can't
> see
a
> problem in taking a few mm off of the stupid jackass of an engine
> mount.
>
> cheers,
> Adam
>
>
>
>
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