Magaling na Mekaniko for Top Overhaul

[_Cathy_]

160,000 pero never tumaas ang temp at never naubusan ng oil. First time rin siya nagbawas ng oil, umabot ng low pero nadagdagan ko kaagad ng oil.

I called an autoshop in the Manila area (near Makati lang) na maganda ang feedback sa net, very accommodating naman yung nakausap ko, sabi mas maganda kung pati piston rings isabay na, ang intindi ko gusto ata nila palitan na yung mga parts na wo worn out talaga sa katagalan so sorta like a major overhaul na rin (?) I'm having my car checked on the week-end para ma diagnose nila ng maayos.

You suggested pala a compression test, I'll have it done on the week-end. Pano pag lumabas na valve seal lang ang problema? Yun lang ang papalitan ko or pasabay ko na yung piston para mapangunahan ko na yung sira?

[reym]

160,000 pero never tumaas ang temp at never naubusan ng oil. First time rin siya nagbawas ng oil, umabot ng low pero nadagdagan ko kaagad ng oil.

I called an autoshop in the Manila area (near Makati lang) na maganda ang feedback sa net, very accommodating naman yung nakausap ko, sabi mas maganda kung pati piston rings isabay na, ang intindi ko gusto ata nila palitan na yung mga parts na wo worn out talaga sa katagalan so sorta like a major overhaul na rin (?) I'm having my car checked on the week-end para ma diagnose nila ng maayos.

You suggested pala a compression test, I'll have it done on the week-end. Pano pag lumabas na valve seal lang ang problema? Yun lang ang papalitan ko or pasabay ko na yung piston para mapangunahan ko na yung sira?

Mas maganda magkaroon sila ng slight diagnostics like compression test wet and dry, cylinder balance testing, leakdown testing (kung meron) para more or less malaman kung alin ang culprit. Kasi kung valve seal lang yan, pede yan dukutin ng di tinatangal ang makina.

Kapag binuksan ang makina at naibaba na ang cylinder head, tingnan mo ang cylinder pat may guhit ng langis ibig sabihin sa ring ang problema, pag may makintab na puti sa cylinder nabalian ka ng ring.

[_Cathy_]

Thanks. I'll ask them to do the tests that you said. Paano kung lumabas sa mga tests na valve seal lang ang problem, wag ko ng pagalaw ang piston? Kasi suggestion ng shop isabay na ang piston. I'm so confused kasi sabi rin ng iba, kung kaya naman sa budget isama na rin yung piston.

I won't have the chance to see the cylinder kasi iiwan ko yung car. Estimate nila mga 5-7 days bago ko makuha ulit.

[_Cathy_]

Ganito po kasi yan. Yun top overhaul pinapalitan yun valve seals, springs gasket and ni-reseat yun valve. minsan valve seal lang problema pero since tangal na yun top from the block (lower part of the engine)pinapalitan na ito madalas. kung di naman napabayaan un engine, hindi nag overheat, hindi naubusan ng langis ok pa yan at tatagal pa yan, I have a 13 and 15 yr old vehicles pero never pa nag overhaul, top or full.

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.

[4JGtootsie]

Hirap kasi, gusto nila palitan lahat maski maaring maayos pa ang bearings at bushings. Be sure marami kang saved money. Once you bring down the whole engine obligado ka na maglabas ng pera or else ma tetenga yan. Rough estimates are decieving once engine is down it becomes deadly. I strongly suggest a top overhaul/check first.

[_Cathy_]

Oh no. Thanks for warning me. I'll ask for a detailed estimate. Yung top overhaul (kit and piston) estimate 20k daw. 25k tops.

Ano pala indications ng blow by na makina??? Pano i check yun?

[KBR]

Oh no. Thanks for warning me. I'll ask for a detailed estimate. Yung top overhaul (kit and piston) estimate 20k daw. 25k tops.

Ano pala indications ng blow by na makina??? Pano i check yun?

well, pag may "Blow By" na ang makina, usually ang unang signs nito ay ma usok ang exhaust (continous Bluish / White smoke sa tambutso), basa sa Oil ang Spark Plugs at mahina ang engine compression. also, mag mi-misfire din ang makina pag may "blow by" na siya.

anywayz, kung ako sa iyo, I would have the mechanic do a Leak Down & Compression test. then kung OK pa naman ang compression (it should be around 130-140 psi OR 140-150 psi, at hindi dapat bumaba ng 120 psi *and there should be a minimum difference of 10 psi per each cylinder) pwede pa na ipa "Top Overhaul" lang ang makina.

and BTW, mabuti din kung ipa test mo din ang Oil pressure (check the repair manual for the specific oil pressure * idle) para ma make sure na hindi rin masama ang Oil Pump.


aite, peace.

[reym]

Oh no. Thanks for warning me. I'll ask for a detailed estimate. Yung top overhaul (kit and piston) estimate 20k daw. 25k tops.

Ano pala indications ng blow by na makina??? Pano i check yun?

Grabeh 20K for top overhaul??? Kasama na ba palit ng piston rings nyan?

call gant para sa price ng spare parts
8316932,8318938

Pag top overhaul ang mga pyesa papalitan:
1. Valve seals
2. Valve guides
3. Valves
4. valve seats (ring)
5. Piston Ring
6. Overhauling Gasket
7. Machine of Head for fitting of valve seats and valves
8. Valve Springs (if worn - kailangan check ang tension nito against engine
specs)
9. Oil filter
10. Oil

Pag total overhaul 1-10 +:

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


Kung nasa 20K ang top overhaul, pa full overhaul mo na kc sayang ang bukas.

[puroy]

+1 mahal yan for a top overhaul. alam ko nasa 10-15k lang dapat...

[eyshmechanic]

i think para mas reliable bring it to toyota service center then pacheck mo lang kung ano ang problem then get their estimates. then post their findings here so we can give you more indept suggestions.

[mm15744]

Cathy, kaka pa top overhaul lang ng friend ko, 12k nagastos nya (Dasma Cavite).

Since nakakuha ka na ng ideas d2 sa Tsikot, para magka peace of mind ka, mag search ka muna maigi ng trusted and reliable shops at pag may napili ka na, dalhin mo na car mo and let them do the work. Do your best na pumili ng shop na OK at magaling...then kung ano assessment nila sa engine mo, sundin mo na lang.

Ihanda ang pera up to 20K ish (kc alam ko eto price ng total overhaul).
Make sure na maganda usapan nyo lalo sa warranty.

[_Cathy_]

Yup. Kasama yung Piston Ring pero di ko alam kung kasama yung:

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

Pag Total Overhaul around 50k daw. Kung Top overhaul lang daw 13k pero yung gagawin kasi nila in between top and total overhaul kaya 20k. Hihingi ako ng detailed estimate sa Sunday. I'll print the list that you gave nga so I have a guide.

I've made up my mind na full overhaul na lang papagawa ko. Kapag ba full kailangan talagang galawin yung Number 8-12 o gagalawin lang nila yung sira? ung 50k na estimate kasi para sa engine na sirang sira na talaga. Di pasok sa budget ko ang 50k. hehe. Kaso pag naman pinagawa ko sa tabi tabi baka naman mapadoble gastos ako pag palpak.

[_Cathy_]

Cathy, kaka pa top overhaul lang ng friend ko, 12k nagastos nya (Dasma Cavite).

Since nakakuha ka na ng ideas d2 sa Tsikot, para magka peace of mind ka, mag search ka muna maigi ng trusted and reliable shops at pag may napili ka na, dalhin mo na car mo and let them do the work. Do your best na pumili ng shop na OK at magaling...then kung ano assessment nila sa engine mo, sundin mo na lang.

Ihanda ang pera up to 20K ish (kc alam ko eto price ng total overhaul).
Make sure na maganda usapan nyo lalo sa warranty.

Yung warranty ng tinanungan ko, kung Top lang ang ipagagawa labor lang

[4JGtootsie]

What is the most noticeable difference in your car?
How is your idle/menor? Is it rough?
Exhaust gas smell and color?
Its understandable if it consumes oil as long as it doenst pump it towards the tail pipe.

[vicvic]

Dapat talaga pa compression and leakdown test nyo muna.

Sa compression test, titignan kung OK pa yung compression ng bawat cylinder. Pressure gauge lang ang gagamitin, usually sa spark plug hole sinasaksak, tapos i-reredondo after disabling the ignition and fuel injection system. Dapat warmed up yung makina para nandun yung oil film sa cylinder walls.

Sa leakdown test naman, mag-iintroduce naman ng air pressure sa bawat cylinders at Top Dead Center (TDC), sa spark plug holes din ang daan. Usually 100 psi. Pag malakas leak, pakikinggan o pakikiramdaman kung saan ang leak. Pag sa Intakes - intake valves or seat, pag sa tambutso - exhaust valve or seat, pag sa dipstick - rings. Pag matinis ang tunog, maliit lang ang leak. Pag mababa ang tono ng hangin, malaki ang leak. Pag sa kabilang cylinder - head gasket.

HTH.

[_Cathy_]

What is the most noticeable difference in your car?
How is your idle/menor? Is it rough?
Exhaust gas smell and color?
Its understandable if it consumes oil as long as it doenst pump it towards the tail pipe.

What is the most noticeable difference in your car?
It's not silent anymore. Before (when idling) I couldn't tell the difference if it's running or not. Now, it's noticeably noisy and makalog. It's the type of kalog as though the idling is low when it's really not (1,000). I usually put my cell phone at the slot near the window buttons and I noticed that it would shake when idling, which never happened before.

How is your idle/menor? Is it rough?
Yup. Rough. It's still at 1000. But when I turn on the A/C it goes up to 1,100.

Exhaust gas smell and color?
No smoke when idling. But when I step on the gas, a faint white smoke would appear from the exhaust. Tip of the exhaust has oil. Smell is similar to old diesel engines. It's so strong that it sticks to my hair and clothes.

I also did some of the tests that I read in the forum. While the engine was running, I checked the oil cap and dip stick but no white smoke. I also opened the radiator cap and there weren't any bubbles. I hope it not be that bad when they open the engine.

[4JGtootsie]

Prognosis is not favorable. A general overhaul might be necessary. A compression test or removal of head will verify. If you can insist on removing first the cylinder head before the rest of the engine(block) do it. Give us a picture of the piston, walls and gasket for advice.

[_Cathy_]

Hay. It's so hard to let go of a substantial amount of money talaga. I just want to make sure that it will be worth it. It's so nice that the people here at Tsikot are so generous in sharing their knowledge to people like me.

[KBR]

Can anyone please give me advise on what could be the cause of the noise in my engine? The mechanics are telling me that the engine sound is normal but I know for a fact (having driven the car since 96 when it was brand new) that it is far from normal. This is the first time that this has happened and I really want to solve the problem

I also have been running my car on low oil (exactly on the low marker) for I don't know how long. I was due for my 5,000 km change oil when I saw it so I quickly added fresh oil (I always stock up on change oil parts) It was the first time that I experienced my car losing engine oil. I was really surprised because there are no oil marks in our garage. I already had the cam oil seal, crank oil seal and valve oil seal replaced yesterday. I am having the oil changed tomorrow since I am running between full and low oil. Could running on minimum oil level damaged my engine and caused it to become noisy?

What is the most noticeable difference in your car?
It's not silent anymore. Before (when idling) I couldn't tell the difference if it's running or not. Now, it's noticeably noisy and makalog. It's the type of kalog as though the idling is low when it's really not (1,000). I usually put my cell phone at the slot near the window buttons and I noticed that it would shake when idling, which never happened before.

How is your idle/menor? Is it rough?
Yup. Rough. It's still at 1000. But when I turn on the A/C it goes up to 1,100.

Exhaust gas smell and color?
No smoke when idling. But when I step on the gas, a faint white smoke would appear from the exhaust. Tip of the exhaust has oil. Smell is similar to old diesel engines. It's so strong that it sticks to my hair and clothes.

I also did some of the tests that I read in the forum. While the engine was running, I checked the oil cap and dip stick but no white smoke. I also opened the radiator cap and there weren't any bubbles. I hope it not be that bad when they open the engine.

ok, after re-reading your previous and most recent posts, what I think now is that your going to need a full engine overhaul.

my reason:

-you were losing oil, but there are no visible leaks (a sign of a worn Valve Seal and Piston Ring)

-you said your engine was not that "silent" no more, and there is a "ticking" or "tapping" sound (either caused by excessive Valve lash or a worn Rod Bearing due to low Oil Pressure)

-when you step on the gas, a faint white smoke would appear and there is a strong smell in the exhaust, and there is Oil in the exhaust tip. (a sign of excessive "blow-by")


anywayz, based on my experience, these symptoms alone is a good indication that you have "blow-by".


aite, peace.

[_Cathy_]

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