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It's 180g if you can find a practical way to measure it.

Out of curiosity, how did it break?

The vacuum advance unit has a spring at the atmosphere side of the diaphragm, so that advance build up is gradual with increasing vacuum. Total amount of advance is relative to travel of the actuating rod of the unit. What the cam does is to add or remove preload to this spring. Less preload (1...

R4/R5/R6 steering racks have a rod diameter of 20mm, and outer bush diameter of 30mm. Renault 12 and 16 steering racks have an identical looking bush that is 2mm larger in diameter, both inside and outside. We had discussed it here earlier, it seems that large diameter steering rack bush kits...

What weld-through primer are you using?

Are you sure you are looking at the right point for the mixture screw? On the 32IF7 it's at the front of the carburettor mounting flange / butterfly housing. And it's fully recessed in its hole, there is no screw head visible.

Two more thoughts: Rear ride heights. If one side has been set considerably higher than the other, it will push the opposite front corner lower. A quick way to check this is to lift the front of the car by placing a trolley jack exactly in the middle of the tubular crossmember. The idea is to...

Nice car Azazello! I'm sure you will enjoy it.

Does your electric system run on 6 or 12 volts?

Do you have free play between the brake pedal rod and the master cylinder piston?

The hole should be on the brake drum, not the backplate. If it's there, position the drum so that the hole is at roughly 9 o'clock for the left side wheel, and 3 o'clock for the right wheel. Insert a flat blade screwdriver with a diameter of 4mm in the hole, push it as far as it will go, and...

When this cable shorts it overheats and melts and you notice it immediately by the smell and smoke. :laughing:

Putting a 17mm torsion bar at one side and keeping the 16,5mm one at the other will mess settings badly... I just had a thought. If you are using a pipe as a lever, you may well push the bar sideways rather than apply torsion to it. Have a look at Renault's tool to overcome this, I'm sure...

Condenser holding screw being too long and eventually touching the points spring (after many years of trouble free running) was the most recent breakdown I had on my 845, coincidentally with the same distributor.

The torsion bars will normally weaken, that's why they are adjustable. 130.000 kms is "barely run-in" for any R4! :-D If other side sits constantly higher it may be a good idea setting this side to factory setting too, as a starting point. I'm not sure you wanted to hear this, though...

Best practice is to fit one of the 17mm AF bolts first. You may need to insert a screwdriver in the other bolt hole and wiggle it a little to align the hole perfectly. These bolt holes need to be aligned to the chassis holes otherwise the bolts will strip. Not the easiest job, admittedly...

Of course they will not at this point, the bar needs tensioning (turning the anchor lever clockwise when viewing from the back), then they will line up. Are you doing the job alone or do you have an assistant?

I don't think so, the oil filter is already very close to the body. It will be impossible to fit the filter.

Altering the torsion bar position by one tooth at one end only will affect ride height by some 60mm - definitely not fine tuning! Imagine both the wishbone and the anchor lever as stationary and the bar being rotated. The anchor lever will end up at a slightly different position because tooth...

It's easier if you install the bar as per the Haynes instructions (supplement, on the fixed mounting chapter), that is, with the lower arm on the car and the damper fully extended, position the bar so that the anchor lever edge is 10mm from the floor aperture edge. Tension the bar, roll the car...