Chassis Black

**GTS** · 08-10-2010, 07:54 AM

If you look closely you will see small factory dimples where the holes have to go. I'll see if I have a pic of my firewall. There are 3 below the big hole for the fan motor and another for the wiring just to the left of the plastic heater box housing. There are also 2 dimples on the radiator support panel, left hand side, where you have to drill for the condensor pipes. They come through the left hand radiator support mounting bracket.

--- Updated ---

Found it....

I've put a blue circle around the dimples. You will notice the one on the right, near the fan hole, has 3 dimples. Thats because you need to drill 3 holes, obviously. Two are for the heater pipes and the third (middle hole) is so the rubber grommet will fit in between the pipes....if you know what I mean.

**HK1837** · 08-10-2010, 08:45 AM

This is from memory, the bigger hole is 32mm, and the other 3 x smaller - I used 5/8" from memory. Just check against another car first. I think last time I did it I dressed up the 3 x 16mm holes into 1 x slot as the holes actually overlap and look messy.

As another point of interest, see the dimple on the firewall photo directly above the RH edge (passenger's side edge) of the steering column hole? It is on the bit that slope backwards at about 45degrees. That is the dimple for a TH400 or TH350 speedo cable entry if anyone ever needs to know! I think it is also 32mm. The other hole to the driver's side of the column hole just gets a blank speedo cable grommet in it.

**GTS** · 08-10-2010, 09:08 AM

Jennie, have you got the l/h engine mount for air con?

**jennie285** · 08-10-2010, 09:24 AM

Originally Posted by GTS

Jennie, have you got the l/h engine mount for air con?

Yes thanks,
Rodney has already welding up and ground, the 32mm hole which had been cut in for the speedo cable when the Turbo 400 was fitted to the vehicle, he was aware of the 32mm hole for the wiring and vacuum hoses, and new he needed to cut holes for the heater pipes, didn't realize that they were an oval hole, just thought they would be two individual holes. thanks for all your input and advice, always valued.. (from Rodney)
He wasn't actually aware it was 32mm but thought it was around that size and was going to measure hole off rubber gromit..

**jennie285** · 10-10-2010, 03:36 PM

The air con is in, and by the way Rodney went to Forbes and checked a couple of cars before drilling the holes, and decided that the 3 A/C holes are 19mm on some vehicles they had filed them to an oval shape, and on some vehicles they were just 3 round interlocking holes, he reckons the fire wall hole was larger than 32mm but wasn't 38mm feels it was around 36mm. So he actually drilled it 38mm and the gromit is a little loose so note the gromit has been sickaflexed in from behind, with duct tape holding it into position, until it drys.

**hxbunny** · 10-10-2010, 09:00 PM

Love all the pics and info, do you want to come and do our van next, just joking but seeing others ideas keep you motivated and moving.
Cheers

**wbute** · 10-10-2010, 10:01 PM

You should try putting the ac in with the car all in one piece and the engine in! Drilling that hole behind the distributer is awesomely difficult!:Chin: