Hawk puzzles

[chris.richard]

Under the dashboard of the hawk there is a u-shaped box section mounted between the brake and clutch pedals, It has a hole drilled transversely. What's that for then?

The clutch pedal mounting also has a mounting the same as used on the brake pedal for the warning light switch. What's that for then?
:confused:

[mogul_x]

Chris,

Can't think of what the bracket with the transverse hole might be for. Only thing I can think of in that general area is the support block for the steering column intermediate shaft, but your description doesn't sound familiar. I'd have to go out and have a look at mine and see if there's a similar structure there.

It couldn't just be a bracket for mounting return springs on the pedals, could it?

As for the duplicate brake pedal light switch bracket above the clutch pedal - it could have two uses. One, just a mounting point for a rubber bumper for the clutch pedal, so it doesn't hit anything hard when you lift your foot off of it (the X1/9 has a bumper in a similar location).

Two - if you are using a modern fuel injection ECU - possibly a safety interlock for engine start. Don't know if it's common practice in European cars, but U.S. spec cars usually have a safety interlock between the clutch pedal and ignition system. You must depress the clutch before you turn the ignition key, or the engine won't crank. I think the intention was to prevent people from starting the car in gear, thinking they were already in neutral. My donor 164 was so equipped, so I scavenged both switches off the pedal cluster - one for the brake light, and one for the clutch interlock.

On the plus side, the 164 switches have a smaller diameter than the X1/9 brake light switch typically used, and I might not have to drill the hole in the bracket to fit.

Hope this helps,

[Andrew Way]

Originally posted by chris.richard
The clutch pedal mounting also has a mounting the same as used on the brake pedal for the warning light switch. What's that for then?
:confused:

I used a nylon bolt in that to set the return of the clutch pedal (to stop metal on metal contact in the cylinder when you take your foot of the clutch). Seamed like a good idea at the time:rolleyes:

[colin artus]

I think the bracket is the mounting for an X/19 type clutch mastercylinder.


Colin

[tryphon]

which is the same as the one mounted on the original...

[chris.richard]

Originally posted by colin artus
I think the bracket is the mounting for an X/19 type clutch mastercylinder.


Colin

Don't tell me that! After I fabricated a mount for one in a different position!!:mad:

[tryphon]

I was just talking about the master cylinder, don't know whether the fixing is also the same.

[mogul_x]

Originally posted by colin artus
I think the bracket is the mounting for an X/19 type clutch mastercylinder.

I thought that too, at first, but there were two things that Chris mentioned that made me think otherwise:

1) the master cylinder mounting bracket is located near the center of the car, not between the pedals. (unless it's moved in the last couple of years - I thought Chris' chassis was of the most current design)

2) said mounting bracket has two transverse holes in it, not one, for mounting the master cylinder.

That's not to say that the P.O. didn't do something different that Chris is now undoing. Chris - any chance you could post a piccie of the offending bracket so we can get a look?

[chris.richard]

This is the bit - it's been used as a support to mount relays on an aluminium strut.

[chris.richard]

and from below. The wiring is in a state of... er... well, in a state:)

[mogul_x]

Hmmm, I stand corrected - it IS the clutch master cylinder mounting bracket! :eek:

It has the requisite two sets of holes, and it's in about the right place. When I said earlier that it shouldn't be between the brake and clutch pedals, I neglected to account for the fact that most of you have right hand drive cars. Mine is left hand drive. In a right hand drive car, the clutch pedal is near the center of the car. :rolleyes:

Open mouth insert foot.... mmmmm, filet of sole.

Sorry about the mixup!

[chris.richard]

B****r!!

That would have saved a bit of time & effort! The pedal doesn't seem to have an attachment to activate the mastercylinder - maybe Hawk supplies two clutch pedals for cable or hydraulic activation.:rolleyes: :(

[guy mayers]

And you also need to cut a hole in the front bulkhead and fit a cover so that the lever on the (revised?) clutch pedal can be fitted. I made a very neat job of moulding mine in which was great until I needed to replace the master cylinder! What a bugger of a job that is with the dash in place so, some helpful hints!
The bracket for the master cylinder is mounted very near the heater box so fit the mounting bolts from the outside of the car towards the centre so that they can be withdrawn without the heater having to be removed......
When replacing the master cylinder make sure the pushrod engages the centre of the master cylinder....... with a rubber boot fitted it's too easy to miss when assembling and you end up with the pushrod over the top of the M/C but with some feel to the pedal which returns to rest due to the elasticity of the boot... You can pump all day but it ain't going ot bleed!
Guy

[mogul_x]

Chris,

It's possible that there were two clutch pedals, as you say. The hydraulic clutch pedal should have an arm sticking up, approximately between the uprights on the M/C mounting bracket, with a pin on it that engages the pushrod on the master cylinder.

Of course, the presence of that arm requires that you drill a very large hole through the front bulkhead, in order to allow the pedal to travel through the full range of motion. Hawk cars now supplies a tiny fiberglass panel with new kits that covers up the resulting hole.

Naturally, the build manual neglects to mention any of this, so I had a hell of a time figuring out what that little panel was for when I first unpacked the kit!

Hopefully the solution you designed makes for a more elegant installation!

Cheers,