C1 firewall grommets
Thread Starter
Le Mans Master
Joined: Feb 2004
Posts: 7,368
Likes: 874
From: Norcal CA
2018 C1 of Year Finalist
C1 firewall grommets
Can anyone tell me which grommets goes where? Do i need to glue them in place? Which way do they go?
I do not have the aim manual in front of me so I cannot look at the AIM manual to reference. I do own the manual though a picture is more helpful.
Thanks!
I do not have the aim manual in front of me so I cannot look at the AIM manual to reference. I do own the manual though a picture is more helpful.
Thanks!
Race Director
Joined: Feb 2004
Posts: 14,984
Likes: 185
From: CT
You can determine which grommets are which by the size of the hole in the firewall and what items go through them, i.e one with three holes would have three things go through, etc. No glue is used. Most are split so work one end in the groove, insert the items through it, then roll the rest of the grommet in place. If everything is tight work it around with the blade of a screwdriver.
Thread Starter
Le Mans Master
Joined: Feb 2004
Posts: 7,368
Likes: 874
From: Norcal CA
2018 C1 of Year Finalist
You can determine which grommets are which by the size of the hole in the firewall and what items go through them, i.e one with three holes would have three things go through, etc. No glue is used. Most are split so work one end in the groove, insert the items through it, then roll the rest of the grommet in place. If everything is tight work it around with the blade of a screwdriver.
Okay, thanks!
Drifting
Joined: Apr 2002
Posts: 1,252
Likes: 48
From: Lake Saint Louis Mo
I posted drawings of all of the holes and what they were for several years ago. It's for a 60. I made it kind of a contest to see who knew them all.
I don't remember if I posted here or on NCRS. I'll try to find the drawings and post them tommorrow.
Larry
I don't remember if I posted here or on NCRS. I'll try to find the drawings and post them tommorrow.
Larry
Drifting
Joined: Apr 2002
Posts: 1,252
Likes: 48
From: Lake Saint Louis Mo
Link to diagram
http://i684.photobucket.com/albums/v...lprintable.jpg
This is a little hard to read. If anybody needs the original, Email me.
I have another that shows the names on the drawing and also has the
holes for the insultion retainers in red.
A Heater Hose
B Heater Hose
C Insulation fastener
D Tach cable single larger hole
E Hood Latch two small oval shaped
F Insulation fastener
G Insulation fastener
H Heater flapper cable No grommet use Dum Dum
I Insulation fastener
J Insulation fastener
K Ignition harness and radio ground
L Ballast resister screw
M holes that where in my firewall?
N holes that where in my firewall?
R Oil gauge and Wiper cable Grommet has one small and one large hole
S Speedometer single hole large
T Windshield washer two holes lrge and sml
U Insulation fastener
V Insulation fastener
W Screw from inside for fuse block
X Main wire harness
Y Insulation fastener
Z Insulation fastener
Larry
This is a little hard to read. If anybody needs the original, Email me.
I have another that shows the names on the drawing and also has the
holes for the insultion retainers in red.
A Heater Hose
B Heater Hose
C Insulation fastener
D Tach cable single larger hole
E Hood Latch two small oval shaped
F Insulation fastener
G Insulation fastener
H Heater flapper cable No grommet use Dum Dum
I Insulation fastener
J Insulation fastener
K Ignition harness and radio ground
L Ballast resister screw
M holes that where in my firewall?
N holes that where in my firewall?
R Oil gauge and Wiper cable Grommet has one small and one large hole
S Speedometer single hole large
T Windshield washer two holes lrge and sml
U Insulation fastener
V Insulation fastener
W Screw from inside for fuse block
X Main wire harness
Y Insulation fastener
Z Insulation fastener
Larry
Last edited by Larry P; Sep 2, 2009 at 03:55 PM.
Thread Starter
Le Mans Master
Joined: Feb 2004
Posts: 7,368
Likes: 874
From: Norcal CA
2018 C1 of Year Finalist
http://i684.photobucket.com/albums/v...lprintable.jpg
This is a little hard to read. If anybody needs the original, Email me.
I have another that shows the names on the drawing and also has the
holes for the insultion retainers in red.
A Heater Hose
B Heater Hose
C Insulation fastener
D Tach cable single larger hole
E Hood Latch two small oval shaped
F Insulation fastener
G Insulation fastener
H Heater flapper cable No grommet use Dum Dum
I Insulation fastener
J Insulation fastener
K Ignition harness and radio ground
L Ballast resister screw
M holes that where in my firewall?
N holes that where in my firewall?
R Oil gauge and Wiper cable Grommet has one small and one large hole
S Speedometer single hole large
T Windshield washer two holes lrge and sml
U Insulation fastener
V Insulation fastener
W Screw from inside for fuse block
X Main wire harness
Y Insulation fastener
Z Insulation fastener
Larry
This is a little hard to read. If anybody needs the original, Email me.
I have another that shows the names on the drawing and also has the
holes for the insultion retainers in red.
A Heater Hose
B Heater Hose
C Insulation fastener
D Tach cable single larger hole
E Hood Latch two small oval shaped
F Insulation fastener
G Insulation fastener
H Heater flapper cable No grommet use Dum Dum
I Insulation fastener
J Insulation fastener
K Ignition harness and radio ground
L Ballast resister screw
M holes that where in my firewall?
N holes that where in my firewall?
R Oil gauge and Wiper cable Grommet has one small and one large hole
S Speedometer single hole large
T Windshield washer two holes lrge and sml
U Insulation fastener
V Insulation fastener
W Screw from inside for fuse block
X Main wire harness
Y Insulation fastener
Z Insulation fastener
Larry
Should I first, put the grommets into the firewall before the firewall insulator? It looks like I should do this prior to installing the insulator though I just want to make sure.
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Tech Contributor
Joined: May 2005
Posts: 15,576
Likes: 118
From: Conroe Texas
For example - if you install a grommet for the speedo cable, you'll play hell getting the cable to go through the grommet. But if you get the cable through the firewall, then put the split grommet around the cable and push it into the firewall you may have better luck.
Melting Slicks
Joined: Sep 2001
Posts: 3,023
Likes: 1,099
From: Aggieland TX
James
I use a little Sil Glyde (NAPA) (something MagicV8 turned me on to) on the bayonet part of the grommet and it makes them go in fairly easily. Don't get carried away as they can become slippery. Also, when you put in the firewall insulation, make one of these tools that bigearl65 posted about a while back:
http://forums.corvetteforum.com/c1-a...cool-tool.html
I just put in the last piece of insulation the other night and all went in quite easily. Lubed the points with Sil Glyde as well. For whatever, reason, the plugs were a lot easier to install in the our '60 than they were with the '65.
Good luck.
Dave Z
I use a little Sil Glyde (NAPA) (something MagicV8 turned me on to) on the bayonet part of the grommet and it makes them go in fairly easily. Don't get carried away as they can become slippery. Also, when you put in the firewall insulation, make one of these tools that bigearl65 posted about a while back:
http://forums.corvetteforum.com/c1-a...cool-tool.html
I just put in the last piece of insulation the other night and all went in quite easily. Lubed the points with Sil Glyde as well. For whatever, reason, the plugs were a lot easier to install in the our '60 than they were with the '65.
Good luck.
Dave Z
