Preamble

Of the 100’s such that I’ve answered so far, what follows is a continuation of a selection out of my personal archives, which I hope visitors like you will find informative and useful.

-------------------------------------------------------------------------------------------

I've seen some such conversions retaining the original GB but their 'Noise Vibration and Harshness' characteristics are far from satisfactory. The drive shafts also need to be 'extended' and that's done in a very crude and unreliable manner.

Besides, an M1000 Engine bay is not designed to take on a diesel w/o extensive reinforcements and the conversion won't be street-legal, as no RTO will give it a clearance.

A much better, cheaper and legal option for you will be to convert it into LPG or CNG. Surfing our following URL will tell you more about it all –

http://www.indiacar.com/infobank/lpgcng.htm

Q2

I am facing a problem with my M1000. The engine has been overhauled and it’s running very smooth. The problem is: it stops suddenly after getting heated to half the temperature gauge indication (some times a little above it). After a few minutes of cooling off, engine starts and runs in normal.

I demonstrated it to my mechanic and he said that the pump is not pumping fuel after getting heated up. He suggested replacement of the pump but the problem still persists even after pump replacement. Can you tell me what could be the reasons for this problem. The Temp sensor activated valve in side the cooling line is also removed. This is near the distributor.

Engine condition: 180 kms run after the reconditioning the engine
new Esteem Carburetor (my old one got spoiled), new fuel pump, new plugs, condenser, points, ignition coil etc. Please give the possible reasons, so that I can get them done by my mechanic..

A2

From your narration, I'm inclined to conclude that your new engine is on the stiffer side and has not been run-in enough while stationary before handing over to you.

It's, therefore, tending to overheat, 'seize', and hence stall. It's quite possible that it has suffered some internal damage in the process already. Notwithstanding, you can do the following:

i) For the next 1500 kms, run it on the '2-T Ready Mix' Fuel normally used by 2-Wheelers.

ii) Do not exceed road speeds of 10/20/30/50/60 kph in I/II/III/IV and V gears. Thereafter, gradually go up in proportion upto 80 kph by the end of another 1500 kms.

iii) Ensure that its Distributor ‘Dwell Angle’ is set to 54+/- 3 degrees using a reliable Dwell/Tacho and the Ignition Timing set to 8+/- 1 degrees/BTDC @ 800+/- 50 rpm. Most roadside mechanics will not have these Test Instruments and any body saying he can do it w/o them is talking through his hat.

iv) Removing the Radiator ‘Thermo Valve’ is a folly - have it put back positively after running-in as above. Otherwise your fuel efficiency will be down by ~ 15%.

v) Have the 'CO' set to ~ 2 %

vi) I wonder whether the Esteem Carb has been duly modified internally to suit the M1000 Engine. Otherwise, you'll have fuel consumption and starting related problems.

vii) Switch over to the detergent pre-mixed/Premium fuels straight away.

Q3

Where can I get a car scan instrument which can be used on all latest MPFI cars. Nowadays each car requires to be taken to appropriate authorised dealers where they have a device and adjust and monitor various parameters in all MPFI vehicles where an ECU is present. Why do we need different devices for each car? Will there be any hardware key for each instrument?

A3

Each Car Maker/OEM has it's own design philosophy when it comes to ‘programming’ their Engine Management 'EPROMS' aka ECUs, some being 8 and others being 16/32 bit Chips.

Likewise, the various types of Sensors they deploy on their engines are also different in their characteristics - besides their physical attributes.

Consequently, each OEM has its own purpose-built ‘Test-Tacho’ having its own 'program' - usually one such Instrument being sufficient to Test/Scan the various Models it currently has under production/on the roads - costing upwards of Rs: 100k - which they provide to their Authorised Service Centres only.

It, therefore, follows that there can be no one such 'universal' ‘Test-Tacho’ which will suit all cars and as a result, one has to go to the respective A/S/C's for getting one's Mpfi Car 'Scanned'.

Back