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Originally Posted by mycarhasablower is decarbonizing really required? for diesels it definitely is. But for petrol, i dont think so. engine oil has many additive and two of those are, detergents and agents to keep contaminants in suspension within the oil. if you change the oil before it burns away these additives, your engine will anyways have negligible carbon buildup.
infact an engine that is all black inside due to late oil changes will itself get decarbonized if you make a few quick oil changes thereon. |
I really dont agree with this..
Carbon build up is not only due to "late" oil changes and cannot be remedied by a quick fresh oil change.Open up your bottom end and see if its as easy to remove the carbon ? or even your top end and see if its so easy to remove it ?
This quick oil change will not solve your carbon problems.
Really its just not that simple..there are many ways of getting carbon built up and many diff places it can build up and needs to be removed in corresponding diff ways; Top end/bottom end have diff buildups..
TB,Pistons, valves, intake plenums, runners etc etc
Just a few examples considering a bone stock engine with no modifications being owned by a regular guy.
1] old plugs = bad spark = incomplete combustion and unburn fuel = sooty carbon buildup over a period of time
2] timing not set properly = spark at wrong time = incomplete combustion and unburnt fuel = sooty carbon buildup over a period of time
3] engine running rich ..in case of say carb engine with an incorrect setting. (or ECU engines with a screwed up sensors, low probability but still a possibility)
4] Bad fuel - This is India - I dont know what kind of cocktails we have been filling in our cars , atleast I have experienced pretty bad fuels in my engines liftime.
5] blowback from intake side - incorrectly set tappets, valves will create some blowback after a period of time.. (intake valves can also get burnt)
6] breather hoses from valve cover/PCV/EGR etc - these contribute to the oily, sooty carbon buildup in the TB/intake/runners etc sending all sort of crap into your intake
7] Idling for long periods, short runs etc
8]
9]
..You get the picture.
there are 100 of places and reasons for this build up.
Guys plz correct me if I'm wrong, or add more stuff you can think of I may have missed out on.
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Originally Posted by mycarhasablower your car can easily clock 3 lakh kms if taken care of. it was designed for that. its only in india that we sell off cars within 3-5 years and 50k kms. |
Cars ar designed for 3 lakh KMs but the factors influencing the cars to give up by at 50K are endless..
People dont service regularly, how many % of people are particular about their engine maintenance outside of TBHP ?
Garages/service stations dont service the cars and even if they do how much chance is there they have done it right ?
See our road conditions, we need offroaders, not talking about the smoothness of the roads only ..see the amount of dust, condition of fuels, heat etc.
Also ther emaybe incidents of people (non gearheads) being able to manage to reach 2lakh/3 lakh etc but does that car really feel like they have life left in them.managing to each 3lakh barely VS doing 3 lakh and still having "respectable performance" are 2 different things.
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Originally Posted by mycarhasablower (ac's in 800s are supposed to reduce engine life)the car has done 1.8 lakh |
hmm..any thoughts on how this maybe happening ?
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Originally Posted by mycarhasablower engine overhauls are just fine if done properly.dont fear them |
There is an "
if" in the middle of the sentence.
Is it really worth it ?
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Originally Posted by mycarhasablower get it done and share with us, the results. ill be getting the 800 OH'd soon. maybe ill do it myself. its no biggie. |
Wow ..are you sure its not a biggie getting it done yourself ?
How extensive are you planning this OH ?
Atleast its a biggie for me, I'm still learning and still have a long way to go even after seeing some stuff on the shop floor and getting my hands greasy ... of course manual in one hand spanner in other hand
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Originally Posted by thermalpaste Do the most important thing -- change the timing belt, the tensioners for the timing belt and the water pump. Get the radiator and heater hoses checked. Change the brake fluid, and get the radiator flushed.
The G10B, if taken care of, can easily clock 300,000 kms without an overhaul. But you have to change the water pump, timing belt, tensioner and idler pulleys for the timing belt. Also get the the timing belt cove replaced.
Check the tie-rod and axle boots for wear and tear.
I forgot to add, I clocked 285,000 kms in my zen. |
Awesome..
Is it still running well ? hows the mileage coming along ?
Still having the same clutch ?