Magaling na Mekaniko for Top Overhaul

[afrasay]

Thanks. It was a good and clear explanation. Yung pag reset ng valve kailangan ba ng mga computers o tantsahan lang? Marami na rin kc akong na encounter na mekaniko na oo lang ng oo na kaya nila. One time pinalitan yung water pump ko, nakalimutan ikabit yung pulley. hehe. What about kapag Total overhaul? Ano na ang gagalawin?

Sorry if I ask too many questions. I try to get as much working knowledge as possible so I could make an informed decision. I really appreciate all the input.

Di ko rin maimagine kung pano yung dukot. Ang nakikita ko lang kasi sa engine yung pag tinatanggal yung valve cover. hehe.

Reseat po as in yun valve (intake and exhaust) palapatin sa seat which is kung saan siya nakapatong. the mechanic must do this para wala leak yun gas and exhaust when it opens and close. during the early day, hehehe, may rubbing materials na apply sa valve then by using the hand, parang gumagawa ng puto bungbong, using circular motion, yun ang pinanglalapat nila. now they using a drill thing to grind it.
"Dukot" (ok guys I know what's in your mind) is when you just replace the piston rings and nothing more. Yun sis ko nagpa top overhaul ng 2E nasa 200thou km plus na.

[afrasay]

If they do a full overhaul, do I need to have all these things done or will they fix just the parts that are damaged?

8. Piston
9. Machine: re-bore / sleve
10. Thrust bearing, journal bearings, main bearings.
11. Machine: crankshaft polishing re-grinding
12. Oil pump

Yup, palit lahat

[afrasay]

how did you know na oil yun sa muffler? di kaya its only water combined with sooth? pag morning from a cold start while idling do you see water coming out of your muffler?

[afrasay]

1000 rpm sa idle and 1100 with aircon, jeez!!! mataas ang idling mo. dapat nasa 700-750 lang yan with or without aircon.

[4JGtootsie]

What is definite are piston rings? Piston is still a question.
Piston bushing and sometimes pin are also necessary.
Thrust bearing rarely fails unless installed wrongly before.
Now a plastigauge (the right one) will determine the condition of the conrad and main bearing. In some situations especially when wear is very minimum you can retain the main and conrad bearing ( I know some might not agree). In case you do, break in will be a bit easier and colder because friction is concentrated on the ring and walls (braking glaze to obtain the correct surface roughness)

[_Cathy_]

how did you know na oil yun sa muffler? di kaya its only water combined with sooth? pag morning from a cold start while idling do you see water coming out of your muffler?

Minsan meron water minsan wala. I just checked the muffler again, I rubbed my index finder on the inner and outer tip of the exhaust and then I rubbed my index finger and thumb together and it felt like oil. I then placed my index finger on running water and the black substance didn't wash away easily, it looks like oil to me

[afrasay]

hmmm...water during cold idle is an indication of a good sealed engine. I'm just making an educated guess here but it seems you only need a top overhaul. The vibration seems to only come from a buster engine/tranny support. Normal lang yun sooth and black carbon sa muffler. Your engine might also be running rich due to the white smoke.

[_Cathy_]

All four supports are indeed busted. My old mechanic showed me the cracked rubber.

Top Overhaul = Dukot? Some are saying na di daw maganda ang dukot and mas maganda daw kung ibaba ang engine. Pwede ba yung Top Overhaul lang pero ibababa yung engine? hehe. Sorry if my questions seems stupid.

[_Cathy_]

Madali lang ba mag adjust ng idling? Yun ba yung parang turnilyo na tinu-turn? Naka 1,100 na kasi ang idling without aircon. Gusto ko ibaba ng 1,000.

[afrasay]

Stupid questions are the ones not asked. Tanung natin sa mga toyota fuel injected peeps. Yun sakin kasi di na adjust unless you make mechanical modification. Sent you a pm

[_Cathy_]

Last time kasi may nakita akong parang tinuturn yung mekaniko tapos nag aadjust yung idling. I took a look kanina parang di ko na mahanap. hehe.

[mark_t]

Hi,

If you still have not found a reputable mechanic to fix you car, May I suggest that you visit Meralco Foundation Institute in Ortigas. This will be on the same compound as Meralco and Medical City, You cant miss it. Look for
Mr. Suerte Felipe, he is one of the professor' of their automotive programs.
They can fix your engine there, But you will have to buy your parts yourself.
If there are machining to be done, you would do the legwork too. Hindi ka mapapahamak doon.

mark

[_Cathy_]

Hi Mark. Thanks for the recommendation ! I am actually interested in enrolling at Meralco Institute. When I inquired on the phone, the guy said that Automotive Electrical is a Prerequisite Course daw so I got a little discouraged. Were you able to attend any of their courses?

I had my car checked at a reputable shop (Toyota Specialist) and they just did an engine flush and oil change. They also recommended to have the engine support replaced first and then bring them back the car after 3,000 kms to see if the car really needs a top overhaul.

I still plan to have the car checked with other shops and mechanics so I'll check out Meralco foundation one of these days since I am interested to know more about their automotive classes.

I am a bit concerned lang, does that mean my car will be a guinea pig for the students enrolling in the course?

[mark_t]

Hi Mark. Thanks for the recommendation ! I am actually interested in enrolling at Meralco Institute. When I inquired on the phone, the guy said that Automotive Electrical is a Prerequisite Course daw so I got a little discouraged. Were you able to attend any of their courses?

Yes,I attended some of their courses. I dont think Auto Elect. would have to be a prerequisite course since it is just a DC system, maybe they are just pushing for this class to fill it up. You can waive this requisite naman muna. But you have to talk to one of the Instructors. Baka naka sagot ng call mo ay marketing Dept. though kukunin mo rin itong course na ito later on. Hindi naman ito critical, plus, minus lang ito maghabol ka lang sa aral.
Its not rocket science.

I had my car checked at a reputable shop (Toyota Specialist) and they just did an engine flush and oil change. They also recommended to have the engine support replaced first and then bring them back the car after 3,000 kms to see if the car really needs a top overhaul.

Hmm. They should have made a compression test first before recomending
any service. This is how I will do it. Anong silbi nang ginawa nya? Mukhang
pinaltan lang nya oil mo at engine support. Eh hindi naman ito ang complain mo diba?

I still plan to have the car checked with other shops and mechanics so I'll check out Meralco foundation one of these days since I am interested to know more about their automotive classes.

Save mo na lang pera mo and ikaw na lang mag service ng kotse mo, makikita mo d magtatagal completo ka na ng gamit. Go ka na sa pag take ng automotive, maituturo mo ito sa anak at apo mo. he he

I am a bit concerned lang, does that mean my car will be a guinea pig for the students enrolling in the course?

You can work on your car and the instructors will walk you through.
Sa Casa mga intern din gumagawa nito supervised by their senior mechanics plus quality control. Kung nag mamadali ka pagawa mo kay
Mr. Felipe, pero mas maganda mag enroll ka at ikaw mag overhall ng kotse
mo. Sayang oppurtunity. Once in 15 to 20 years mo lang ito puedeng magawa under normal circumtances and you dont have to pay labor.
Think about it.

Plus

Puede business ito.

[mark_t]

Maybe later on you may start a racing career, baka lang.

Plus factor kung mechanic ka rin.

[reym]

If they do a full overhaul, do I need to have all these things done or will they fix just the parts that are damaged?

8. Piston
9. Machine: re-bore / sleve
10. Thrust bearing, journal bearings, main bearings.
11. Machine: crankshaft polishing re-grinding
12. Oil pump

They will only fix the parts that are damaged.
My advise is to re-bore the cylinder to the next size and replace the piston.
Sleeving is not a good option because the fabricated sleeve might not have the proper expansion properties as the original metal (cylinder wall). As a result, you might have a poor idling at start up or a poor operation at operating temps.

If I were you I would offer to buy parts and ask the mechanic for labor.
4K is the max labor for a general overhaul just be sure to have a repair manual for you engine so that you can give the machine shop and the mechanic the proper clearances.

Max materials and machine shop cause for a general overhaul is P25K.

I will guide you thru the break in process after the overhaul.

[_Cathy_]

They didn't do a compression test kasi di naman daw lalabas/makikita ang lahat ng sira dito. I can't recall his exact words but that is how I understood it. On general inspection, he said that it seems like my car doesn't need a top overhaul yet. He said to wait 3,000 kms. I'll ask him more questions when I go back to have the engine supports replaced.

I'm really intrerested to take the classes. I hope I could really push through with it. Siguro I'll work on my older ka na lang if ever, yung di-karburador. Parang takot ako to work on my corolla.

Dalang dala na talaga ako sa mekaniko/seraniko na mali mali ang ginagawa sa car ko. Malaki ba yung class sa meralco? Papahawakin ba talaga ng engines? Kasi I feel like I could learn faster with hands on exercises. I tried reading on automotive books and had a hard time understanding it kc it's too technical.

[_Cathy_]

They will only fix the parts that are damaged.
My advise is to re-bore the cylinder to the next size and replace the piston.
Sleeving is not a good option because the fabricated sleeve might not have the proper expansion properties as the original metal (cylinder wall). As a result, you might have a poor idling at start up or a poor operation at operating temps.

If I were you I would offer to buy parts and ask the mechanic for labor.
4K is the max labor for a general overhaul just be sure to have a repair manual for you engine so that you can give the machine shop and the mechanic the proper clearances.

Max materials and machine shop cause for a general overhaul is P25K.

I will guide you thru the break in process after the overhaul.

I was able to talk to a mechanic that has the same arrangement (I'll buy the parts outside) but his labor for a general overhaul is 7k. I don't know if he knows of a reputable machine shop though. As I understand, the craftsmansip (?) of the machine shop is crucial in the overhaul. I don't think I can negotiate/give instructions to the machine shop on my own since I know nothing about the technicalities Also, I do not have a repair manual. Does that come with the car?

I am just wondering why the guy at the shop said that my car doesn't seem to need an overhaul yet. I saw white smoke talaga but I think he said that it could be because of the oil/dirt that has built up over the years. Minsan kasi pag bago sa pandinig ko yung terms nalilito talaga ako. hehe. Manipis din yung white smoke saka wala naman pag hindi inaapakan yung gas. May tubig din na lumalabas sa exhaust.

DO you know of any shop in Makati/Paranaque that can do the compression test?

Something is really wrong with my car talaga kasi mas tahimik pa yung daewoo na maneho ko ngayon e

[_Cathy_]

What's the proper way of checking the oil level? I just checked the dipstick, nasa Low mark ulit yung oil eh I just had the oil changed last Sunday. From the oil change, less than 20 kms pa lang ang tinakbo. Mabaho pa rin yung amoy na lumalabas sa exhaust.

Baka naman mali yung pag check ko? hehe. Kasi when I went to the shop umaapaw naman daw sa oil ang car ko. Tawa nga ng tawa yung mga mekaniko. From the low mark to the full mark pala e 1 liter lang? Nung nakita ko kasing low dinagdagan ko ng 3 liters. hehe.

[mark_t]

They didn't do a compression test kasi di naman daw lalabas/makikita ang lahat ng sira dito. I can't recall his exact words but that is how I understood it. On general inspection, he said that it seems like my car doesn't need a top overhaul yet. He said to wait 3,000 kms. I'll ask him more questions when I go back to have the engine supports replaced.

Thats not true. paano nya malalaman kung may sira hung hindi nya i compression test? Go find another mechanic.

Are you sure he is a mechanic?

I'm really intrerested to take the classes. I hope I could really push through with it. Siguro I'll work on my older ka na lang if ever, yung di-karburador. Parang takot ako to work on my cor


Wala ka naman maaring masira dyan because what you will be doing is to remove and replace failed components. Wala ka naman puedeng masira dyan puera lang kung kakagatin mo.

Dalang dala na talaga ako sa mekaniko/seraniko na mali mali ang ginagawa sa car ko. Malaki ba yung class sa meralco? Papahawakin ba talaga ng engines? Kasi I feel like I could learn faster with hands on exercises. I tried reading on automotive books and had a hard time understanding it kc it's too technical.

Marami talagang ganyan, Mechanico daw sila, pero certifide by "Mang Boy".
A mechanic is someone who is trained and certifide as one. Working or being associated with toyota or nissan etc does not make anyone competent mechanic. The work of mechanics involves systems and proceedures, pag mali systema mo wala na.

In any failure analysis, you start with a compression test.
Parang tao din yan, you start with xray and labs before going to
your clinician.

That is why you have to have hands on terminal time, so the books would be easier to digest. And the books are directed to technicians because that is their primary market. But there are books for begining journeyman. Sa umpisa lang yan parang mahirap kasi hindi mo nakikita yon tinutuloy ng libro.
So kakalasin mo talaga para mas madali maintindihan.

pls bear with me as i might have some way with words. It is just my having a limited vocabulary. I dont intend to malign or put anybody on a bad light.
I suggest you find a real mechanic because nothing accounts to nothing.

You went there to consult on the need to know if you will require some
service on you engine. And what you got was a change oil.

Your requirement was a course of action to take to maintain you car.
On this you got nothing.

just another way at looking at things