Starlet Ep91

Star1 · April 2, 2010

Need expert advise

Recently got a YOM 99, 137K ODO car seemingly not very well maintained. Engine was heavily vibrating and found all 03 mounts broken. Carried out an engine tune up as well at Mr Lal Alawatte.

1. After tune up it was observed that detonation taking place at high speeds. Found defective thermostat valve and it was removed. Still it detonates(When climbing hills with load). Is it a known issue for this model ?. Understood no adjustments available.

2. Two rear shutters are electrically operating but only a short movement. Found widow beading also move with glass. Any recommendedn place for getting it fixed ?.

Killer-B · April 2, 2010

Need expert advise
Recently got a YOM 99, 137K ODO car seemingly not very well maintained. Engine was heavily vibrating and found all 03 mounts broken. Carried out an engine tune up as well at Mr Lal Alawatte.

1. After tune up it was observed that detonation taking place at high speeds. Found defective thermostat valve and it was removed. Still it detonates(When climbing hills with load). Is it a known issue for this model ?. Understood no adjustments available.

2. Two rear shutters are electrically operating but only a short movement. Found widow beading also move with glass. Any recommendedn place for getting it fixed ?.

Do you see any signs of engine over heating? Hill clinmbing with a load can overheat the engine - if there is any fault in the cooling system, this may cause detonation.

Also you may try a higher octane fuel (you are using oct. 90 fuel, i assume) so try 95.

I dont think this is a issue for starlet, it is a very good car,for a well maintained one of course!

The other more experienced guys in AL is sure to help you with this. Cheers

Edited April 2, 2010 by Killer-B

Star1 · April 2, 2010

Thanks, I will try 95 octane for next full tank. There is no overheating(pointer just below middle of scale steady)

Ripper · April 2, 2010

Need expert advise
Recently got a YOM 99, 137K ODO car seemingly not very well maintained. Engine was heavily vibrating and found all 03 mounts broken. Carried out an engine tune up as well at Mr Lal Alawatte.

1. After tune up it was observed that detonation taking place at high speeds. Found defective thermostat valve and it was removed. Still it detonates(When climbing hills with load). Is it a known issue for this model ?. Understood no adjustments available.

2. Two rear shutters are electrically operating but only a short movement. Found widow beading also move with glass. Any recommendedn place for getting it fixed ?.

i dont see a direct connection with "detonation" and a faulty thermostat valve... and when you say the thermostat was removed, i'm assuming it was replaced

but running with broken mounts for extended times can screw many things up in a car including your tranny.

and btw...what exactly do you mean by detonation????

if that loud popping sound that can mean anything from bad timing, ignition issues, etc etc...

but any of these things can be properly fixed by a capable mechanic

it seems that the detonation issue seem to be happening under higher revs or when gassing up...

my guess is it's something to do with timing, ignition or fuel

shutter problem can be easily fixed.

there's a good chap called ruwan near darley road fire dept...Ruwan Motors is the place and he can easily sort you out...

Star1 · April 2, 2010

i dont see a direct connection with "detonation" and a faulty thermostat valve... and when you say the thermostat was removed, i'm assuming it was replaced
but running with broken mounts for extended times can screw many things up in a car including your tranny.

and btw...what exactly do you mean by detonation????

if that loud popping sound that can mean anything from bad timing, ignition issues, etc etc...

but any of these things can be properly fixed by a capable mechanic

it seems that the detonation issue seem to be happening under higher revs or when gassing up...

my guess is it's something to do with timing, ignition or fuel

shutter problem can be easily fixed.

there's a good chap called ruwan near darley road fire dept...Ruwan Motors is the place and he can easily sort you out...

Star1 · April 2, 2010

Thermostat was not replaced, I just got one and will refit it. All 03 mounts replaced.

Detonation means extra sound "krata"..."krata' coming from the engine in addition to it,s normal sound. As per Mr Alawatte, there is no timing adjustment for Fuel or ignition for this model. Valve timing can also be a problem ?. Petrol consumption also seems high last fill clocking 10km/lit only.

Ripper · April 2, 2010

Thermostat was not replaced, I just got one and will refit it. All 03 mounts replaced.
Detonation means extra sound "krata"..."krata' coming from the engine in addition to it,s normal sound. As per Mr Alawatte, there is no timing adjustment for Fuel or ignition for this model. Valve timing can also be a problem ?. Petrol consumption also seems high last fill clocking 10km/lit only.

googled a bit and found something decent that you should definitely have a read on

http://www.misterfixit.com/deton.htm