Improving Diesel Engine Performance

last SG · 2013-04-15T17:30:36+00:00

cold air is denser than hot air, which leads to a bigger volume after combustion.as long as our air con feels colder than usual, most probably we`re getting...

ericgo SG

once in a while top up full tank in bio diesel..

http://alphabiofuels.sg/pages/bd/retaillocations.html

bowah SG

He! He! He!
FH88 Barrel。。。。So you are under Sim Kok Chye and Simon Lim.

老夫子 is your buddy.

Ya lor, the world is damn small, also cannot remember them liao..I remember my boss was a Lek..knn, dunno die where liao..during my last month in army, ST came and recruited us, because we all sex 2, only can do delivery and rough job, so they sian us into joining them, I start as trainee...then slowly up, because of my smartness, I was very fast promoted, and also very fast retrenched.

Fark lah, hv to do shift, nite shift every nite gamble..hehehe

bowah SG

Power diesel and clean , less black smoke one must die die try Caltex , cleanest diesel i ever used .

Too bad CCK dun have Caltex .

Shell is the brand i used .

Less clean , more smoke , but powerful than Esso's diesel .

Caltex very less smoke .

No need use Caltex all the time , used once every 10 days , let the diesel wash the engine inside , like those from advertisement , it's true one .

Company's diesel sucks lah phui .

My chief, engine is not just about fuel usage, of course good fuel will enhance the performance of the engine due to their extensive research and cost in making it.

Engine also hv to look at the engine oil, the wear and tear replacement, timming, exhaust system, cooling system , fuel system and more importantly the operator using it, which is the driver. If the driver drive like shit, even a roll royce engine also become generator for 7th month ghost festival dinner.

bowah SG

Let me give u an example,

The piston rings are worn (make of hard material), the liner (cylinder make of cast iron) is oversized, in between the clearance is 1.0mm, so every cylinders will have fuel escape in between the rings and liner (cylinder) wall, and that is call fuel wastage.

So, no matter how you clean or put better diesel or change engine oil also no use, you will find the same problem happening, high consumption of fuel, yet no power because of the leakage.

And then the mechanic removed the piston (upper engine removed), he never measure the cylinder, replace new piston rings, about 3 to 4 rings for one piston depend to type of engine, put it back, however, there is still a leakage due to liner (cylinder worn), and that new rings can only reduce the leakage maybe by 0.5mm, and still leaking, still you find high consumption, tho not as much as before.

What mechanic should do is measure the liner (cylinder bore), mannual hone it, replace the piston ring with the next available oversize one so as to reduce the clearance to 0.05mm, that is 5 micron.

And then you see a high performances with less fuel consumption

bowah SG

But does our ah tiong and ahmad mechanic do all these?? they think of sing dollars more than the engine, to be a true engineer, you need to love engine and get the satisfaction of it when it start to run smooth and powerful again, just like TD durian job will satisfy any TD.

And now you know why some mechanic are so good, they never talk about price, they never want to be wearing clean shirt and nice shining shoes, once you walk in only, they will ask what is the problem, on engine, heard sound..until you ask how much, then he will discuss about it, these are good mechanics because they love engine, love to touch and make them good.

If you go in a car repair shop and the first talk from the mechanic is about money, you can move to the next shop, however sad to say, good mechanics are at it extinct, like good engineers, most nowaday care more of their pocket ( which is right) then their profession.

lce SG

Let me give u an example,

So, no matter how you clean or put better diesel or change engine oil also no use, you will find the same problem happening, high consumption of fuel, yet no power because of the leakage.

What mechanic should do is measure the liner (cylinder bore), mannual hone it, replace the piston ring with the next available oversize one so as to reduce the clearance to 0.05mm, that is 5 micron.

And then you see a high performances with less fuel consumption

there is no clearance between the rings n the liners . the rings gaps are the thermal expansion. using thumb rule for the gap is 0.1mm for every 25mm.

1 way to reuse liners is to hone them (zig zag fine lines on liners) wen wear is within acceptable limit . leakage maybe from valves n power loss from incorrect injection timing.

0.05 mm is 50 microns

lce SG

engines can talk to you if only u can understand it language

Ct2220 SG

Fark lah, hv to do shift, nite shift every nite gamble..hehehe

Lek => Lek Yew Heng.

Ha! Ha! Ha! You are those Sotong kena smoke by Evita Ng (HR Manager)

Lek Yew Heng is still in ST~ODE,

He and Sim KC, Tong LS all are Production Planner.

Almost 30 years liao, they are those 打死也不走 Kind.

fifufu SG

Power diesel and clean , less black smoke one must die die try Caltex , cleanest diesel i ever used .

Too bad CCK dun have Caltex .

Shell is the brand i used .

Less clean , more smoke , but powerful than Esso's diesel .

Caltex very less smoke .

No need use Caltex all the time , used once every 10 days , let the diesel wash the engine inside , like those from advertisement , it's true one .

Company's diesel sucks lah phui .

the first few times I pump petrol is not company pump...coz I don't like to waste time to q (that time don't know timing for no q). I pump is CALTEX! From full tank to half tank, my mileage is 370KM...other diesel is abt 290km from full to half...sonata...older vehicle...I pump tire everytime I pump gas.

Rbs70 SG

Fark lah, hv to do shift, nite shift every nite gamble..hehehe

knn.......

Rbs70 SG

Lek => Lek Yew Heng.

Ha! Ha! Ha! You are those Sotong kena smoke by Evita Ng (HR Manager)

Lek Yew Heng is still in ST~ODE,

He and Sim KC, Tong LS all are Production Planner.

Almost 30 years liao, they are those 打死也不走 Kind.

You know Tong also?........

knn, all the oldies you know ka liao.........

Rbs70 SG

knn, Ice and bowah last time enemy?.......

Ct2220 SG

You know Tong also?........

knn, all the oldies you know ka liao.........

bowah SG

there is no clearance between the rings n the liners . the rings gaps are the thermal expansion. using thumb rule for the gap is 0.1mm for every 25mm.

1 way to reuse liners is to hone them (zig zag fine lines on liners) wen wear is within acceptable limit . leakage maybe from valves n power loss from incorrect injection timing.

0.05 mm is 50 microns

How much can thermal expansion go??? oh, i forget it is 50 micron.,..hehe too long never touch precision stuff liao..it the piston groove worn, you think fuel cannot slip thru?? Taxis are not BM or Ferrari make with good material, from satelite to chrome moly, most just hardened by the edge type of material, and that is why, it is cheaper, and the heat generated by taxi is tremedous, and some even burnt on the road, with such high temp, piston groove and rings will worn..and that is also why you heard the tag tag tag sound on taxis..

bowah SG

Lek => Lek Yew Heng.

Ha! Ha! Ha! You are those Sotong kena smoke by Evita Ng (HR Manager)

Lek Yew Heng is still in ST~ODE,

He and Sim KC, Tong LS all are Production Planner.

Almost 30 years liao, they are those 打死也不走 Kind.

No lah, by colonel Gill, knn, he came to our camp 3 Div, TCSS, then of course, I got nothing, join them awhile lor..till now, I feel so guilty getting conned by that colonel Gill.

heheh..but that was only 2 years of my technical discipline, after that, I went join NOL and sailed the seven seas. Repaired and serviced big big marine engines, make much more money than with those fark up Colonel and lek people.

But what to do, young mah, young sure get conned, but if get conned twice, then consider stupid, after sailing for years, I become a contractor, then do many jobs as freelance, get married and drive casket.

Life is a movie, you are the director, either you want to make it a blockbuster, a exciting ones or a boring ones, it is up to you. But I have no regret till now, seen the world, the sea and the girls, and do all kind of roles, and more importantly, to get to know all you guys here who still can tarhan my lor sor and TCSS posting..kudos to all

bowah SG

You know Tong also?........

knn, all the oldies you know ka liao.........

U used to play mahjong with them after nite shift, especially friday nite, knn, you play fast fast, these oldies, tired, cannot see probably, anyhow eat, then kenna char orh

Ct2220 SG

No lah, by colonel Gill, knn, he came to our camp 3 Div, TCSS, then of course, I got nothing, join them awhile lor..till now, I feel so guilty getting conned by that colonel Gill.

Colonel MS Gill ~ One of My Ex-Bo$$.

He is a

Work with him is equal to Chronic Suicide。

bowah SG

Ya, i remember, a bloody heavy smoker..alway like to wear those safari 4 pocket shirt.

Jeff1216 SG

Aiya want better fc just pick up 1 pax type...

More pax in taxi equal to more fuel consume

Rbs70 SG

and more importantly, to get to know all you guys here who still can tarhan my lor sor and TCSS posting..kudos to all

.......you are not lor sor, you are kang si lang lor sor......

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