Discussion in 'Engine Compartment' started by drapkarthik, Jul 14, 2012.
Only Linea or Punto tooo ???
Vijay any specific reason for this ? Could this be considered as a quality issue on this specific part which FIAT doesn't want to address as a recall.
How to understand that timing chain may be having problem, what are the problem symptoms ?
Would be great if anyone shares his experience.
This is exactly the question in my mind can someone enlighten us on what symptoms we will have in case there is an issue with timing chain/belt.
I think its a precautionary measure adopted by fiat because they don't want to take chances. But 60k is too early in any case to replace the timing chain
Inspected the old chain yesterday and it did have a lot of slack in it. Around .5 inches while manually turning the engine before the crankshaft moved.
Symptoms: Lost low end grunt, loss of FE in city (low rpm conditions) and significant increase in diesel clatter.
Surprisingly the engine still was very refined and no vibrations thanks to hydraulic mounts.
The chain would have worked for another 70-80k but the play would have increased causing loss of compression and white smoke from tail. So it's better to have it replaced at 60k interval. A play of around 1 inches is max safe limit anything over and theres a chance of it either slipping a tooth or hitting the chain cover and breaking.
If play increases too much it causes valves to open and close at wrong time causing loss of compression.
This is not new.. last year also, fiat used to change the timing chain for lineas and 90hp puntos which came for third/4th service, after inspection, but wasnt let out as recall or anything . Usually there will be a sound, which we wont be able to recognize quickly but the technicians can easily get it. The main advantage of the timing chain over belt was the lifetime of chains.. as they never have to be replaced. This might be some vendor quality issue as suggested by cinju, they arent taking any risk , but from now on, We ll have to pay for it from our hand as it is part of service !! Its a damn tedious task taking atleast 2-3 hours n is sure to charge us a bomb as service charge..
Vijay bhai ho much does the replacement cost?
According to the Parts data, one part is different in the 90hp and 75hp timing chain kits. Maybe that can explain why the 75hp has been excused from this service bulletin.
Either case, the complete story is not out. Maybe the chain kit is substandard, maybe the 15k oil change interval is harming the chains, who knows.
Separate names with a comma.