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Originally Posted by autocrat Water drained from cooling system and filled up, the drain was clogged with rust. Electrical contacts on distributor and near spark plugs cleaned. Car is running smoother and slightly cooler too, but as I have no data of ambient temperature, I cant really prove this. Brakes have become sharper. The purr of the engine when I do 40 kmph in 4th gear is awesome. |
Dear Gowtham - my replies are as follows:
1. Cooling system: please repeat the water drain process from the drain plug located on the left hand side of the cylinder block (below the distributor). Do this on a dead cold engine only. Take a 14mm spanner and
very slowly (to prevent any thread damage) remove the complete drain plug. Due to excessive rust inside the water jackets, no water will come out when you do this for the first time. Put a thin rod in the hole in the cylinder block and force the rust out. Mucky and brown water will start flowing. Remove the radiator cap to ensure drain with full force. Keep on adding fresh water in the radiator, keeping the drain hole open. Blow into the radiator neck and see the amount of rust pieces (yes, pieces) which will come out. You will have to do this continuously for about 10 to 15 minutes to remove most of the rust. Then wash the drain plug in fresh water and refit it. Fill the radiator with fresh water, start the engine and check, cross-check and double check for leaks. Clean the radiator cap under a tap in fresh water, operate the pressure and vacuum valves in it by hand, to ensure that there is no rust trapped inside the rubber seal etc. When the engine starts and the water pump sucks the water in the cooling system, water level in the radiator will fall slightly. Refill to full position and close the pressure cap. In case you remove the radiator for some reason, go to the friendly neighbourhood radiatorwallah and remove its drain plug completely. Tell him to solder a piece of brass in its place. Radiator drain plug soldering reliability is not good, therefore I have physically removed it from all my cars. Use JIS specification wire clips for clamping the hoses. The size is 1.5 inches. See Maruti 800 car for reference, although there the size is smaller. Use new EPDM material hoses, cut-off the excessive length if necessary to avoid kinks in the assembly. Check the fan belt, I have already provided details. Use the S1 alternator mounting cast iron bracket and brace for perfect mounting and belt line. If the water pump is original and good, leave it alone. As you have recently serviced the car, the muck on the radiator fins would be gone now so the car runs at the correct temperature. Whew!
2. Electricals: Please remove the nonsense in the wire carrying current to the ignition coil. Clean electrical connections will always work properly.
3. Brakes: Check the front wheel bearings for axial clearance. With the steering in straight ahead position, hold the front tire at its top with both hands and rock it, you will feel the clearance on your hands. Remove the grease cup and the split pin holding the front wheel bearings, then use a 24mm size spanner to adjust the pre-load of the taper roller bearings to zero by feel. This will give you the actual clearance of about 20 microns if you measure with a dial gage. Do not over-tighten the nut, this will destroy the taper roller bearings, they must operate at design preload. Water entering the brake drums during servicing removes residual dust from inside the drums so the brakes feel sharper.
Please post photographs of all 5 tires of the car, I will decide how to proceed. Now your engine has started purring and you are still to adjust everything to specification, do it and see, then it will roar and the car will fly! Then fit the S1 exhaust system and see what happens! You won't feel like driving anything else!
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Dear Boeuff - hello after a very long time, your car looks really nice! Fiat fuses are not available any more, however the complete fuse box is still available sometimes but with Maruti fuses inside. In all my cars, I have changed-over to Maruti 800 fuse boxes mounted inside the instrument panel with a simple bracket. The fuse box and its lid in the engine compartment are dummies. Please post some more photographs of the oil filter return line, I want to see the plumbing.
Best regards,
Behram Dhabhar