What and how to check/lookout for in a diesel engine

[coiter]

hey tsikoteers,

just wanna get your tips on what and how to check/lookout for in the engine when buying a 2nd hand diesel-engined vehicle.

i would be getting one soon and unfortunately i may not have a mechanic with me all the time when i check my options. so far i do have a bit of knowledge on gas engines. hope you could help! thanks in advnace!

[4JGtootsie]

Talk to the head mechanic of the surplus shop, sabihin mo "bigyan mo ako ng sariwa ako na bahala sa iyo."
Or if you are permited or masimplihan mo remove glow plug ng cylinder #4. Then biglang kabitan mo ng compression tester. Sabay start mo na. Never start before mo makabit ang gauge.

[afrasay]

almost the same naman ang pag check sa diesel and gas engine. it should start easily (one click) after the heater lamp goes out. warm up the engine. wait until it reaches operating temp. maki pag kuwentuhan ka muna sa seller or inspect mo other part/interior ng vehicle wait waiting. open oil filler cap and or pull out dip stick. see if any puffs of smoke comes out from it. kung kaunti lang puede pa yan. worse pag oil na lumalabas sa dipstick or sa filler cap blowby na yun. pero minsan talansik lang yun from the tappets. check for oil leaks. normally pag sa harap mga seals ng pulley yun. if pawis lang ok pa yun. check mo hose going to the alternator .

[coiter]

4JGtootsie,

hmmm parang mahirap yung compression test a and wala akong gamit.


afrasay,

actually yun ang fear ko e. yung may lamat yung internals. pero similar din nga sa gas pala ang pagtest sa pagbuga ng oil.


may nagsabi din sa akin na yung smoke sa tambucho normal lang especially kung malamig pa makina. pero kung white smoke, masama daw. kung black, ok lang. at kung bumuga yung radiator, may tama na rin ang block. tama ba? and how would you know kung may history ng overheat?

sensya na po sa dami ng tanong ha. 1st time ko kasi. hehehe thanks sa replies at hope more to come!

[afrasay]

usually pag maganda pa makina may spots of water na lalabas sa muffler pag bagong andar. tama ka, yun radiator check mo rin. water should be just flowing and not producing bubbles. take it for a spin. tignan mo yun hatak ng engine. then when you park it open mo yun hood and check inside the bay.

[4JGtootsie]

Sorry, i thought engine lang and bibilhin mo.

[coiter]

oks lang 4JGtootsie

anyway, may tinignan ako kanina. pinaandar ko. pero wala pang 5 mins, tinanggal ko oil filler cap at nilagay ko palm ko sa hole. ayun, basang basa ng langis palad ko. so sablay? or dapat pinainit ko pa lalo yung makina?

then sa may compressor, lusaw din ng langis yung connection ng hoses. although one click lang ang start.

[afrasay]

yun basa ng oil sa hands mo baka talamsik lang from the tappets. did you feel pressure sa palm mo? yun one click isang trait din ng good engine.

[co_nixz]

hey tsikoteers,

just wanna get your tips on what and how to check/lookout for in the engine when buying a 2nd hand diesel-engined vehicle.

i would be getting one soon and unfortunately i may not have a mechanic with me all the time when i check my options. so far i do have a bit of knowledge on gas engines. hope you could help! thanks in advnace!

What Car ba?

Mas maganda kung medyo upgrade mo na makina... or d same padin bibilin mo?

May kilala ako sa Banaue, pero mas mura sa Blumentritt kumpleto

[coiter]

yun basa ng oil sa hands mo baka talamsik lang from the tappets. did you feel pressure sa palm mo? yun one click isang trait din ng good engine.

hmm i see. parang wala namang pressure. kaso nalusaw talaga palm ko eh. although baka nga normal pag di pa mainit. kaso may fluid container na walang takip. tapos yung ibang wiring naka electric tape. so turn off ako. tapos interior laspag. anyway, tingin pa ng iba. thanks

[daycode88]

i had my L400 gasoline engine changed to 4D56 diesel engine. sabi ng mekaniko ko ay kailangan eh may LTO clearance yung engine na bibilihin mo, kasi baka di mo ma-rehistro ang sasakyan mo at lumabas po na from carnap ang engine mo. check mo din yung engine na bibilihin mo ay kung compatible sa present transmission mo.