New and Used Car Talk Reviews Hot Cars Comparison Automotive Community

The Largest Car Forum in the Philippines

Page 18 of 60 FirstFirst ... 814151617181920212228 ... LastLast
Results 341 to 360 of 1193
  1. Join Date
    Mar 2008
    Posts
    263
    #341
    Quote Originally Posted by ghosthunter View Post
    I guess fire has this "unique" ability to change the properly of metals, as in they weaken them (aside from the over-pressure aspect).

    Just wondering... would a teflon oil additive help protect the combustion chamber from corroding. I have heard reports from those who have use teflon oil additives that it prolonged the engine life needing much longer periods of time for a need to do a general engine overhaul.

    The downside is that some complain that it makes the engine a bit "sluggish".

    Am trying to checkout which is better: to come up with a boiler to run a steam engine or directly feed the methane from a bio-digester to a gasoline engine.

  2. Join Date
    Oct 2002
    Posts
    29,354
    #342
    Quote Originally Posted by kitsons View Post
    Am trying to checkout which is better: to come up with a boiler to run a steam engine or directly feed the methane from a bio-digester to a gasoline engine.
    In terms of energy transfer, feeding methane direct to the engine is better but there is the mentioned problem of alkaline corroding the engine's internals.

  3. Join Date
    Oct 2009
    Posts
    473
    #343
    ^^ yup... the biogas-fed-engine of the farm I know is running 24/7 because it is generating power for the whole... and the seller predicts that they will need to change the engine soon (about 4-5 years on the average).

    deterioration goes faster if the engine is not running 24/7 because there would be more time for the "chemicals" to eat the metal when it is not running.

  4. Join Date
    Mar 2008
    Posts
    263
    #344
    Quote Originally Posted by Phoenix67 View Post
    ^^ yup... the biogas-fed-engine of the farm I know is running 24/7 because it is generating power for the whole... and the seller predicts that they will need to change the engine soon (about 4-5 years on the average).

    deterioration goes faster if the engine is not running 24/7 because there would be more time for the "chemicals" to eat the metal when it is not running.
    Is the combustion chamberof the bio-gas-fed-engine teflon coated using teflon oil additives?

  5. Join Date
    Aug 2004
    Posts
    22,702
    #345
    You'd need a more permanent coating... there are places that do ceramic coatings that will resist combustion temperatures and pressures... but I don't know if this can be applied to the cylinder walls where the piston slides across them.

    Ang pagbalik ng comeback...

  6. Join Date
    Mar 2008
    Posts
    263
    #346
    Quote Originally Posted by niky View Post
    You'd need a more permanent coating... there are places that do ceramic coatings that will resist combustion temperatures and pressures... but I don't know if this can be applied to the cylinder walls where the piston slides across them.
    I have heard testimonials on the oil additive with teflon in it that after putting the additives, oil blow byes' stopped and the white exhaust disappeared. Reports also noted that the oil darkened at a much slower pace than without the additive of which either ph was affected or the chamber was coated with teflon coating as the product claims.

    Some jeepney drivers say that they have had the need for an engine overhaul of at up to five years from the regular two years needed for commuter jeepneys. Not sure if this guys were pulling my leg but seems they really are satisfied with the product and testifies to the products calims.

  7. Join Date
    Aug 2004
    Posts
    22,702
    #347
    The problem with such additives is that you cannot achieve an even coating with these things... and they can do nasty things to your oil pump if the additive coats itself on the wrong places. The only way to achieve an even, useful coating is to dismantle the engine and have the parts individually coated, and the tolerances checked carefully afterwards, to ensure that the parts are still within spec.

    Some additives will work, temporarily, on engines that are way out of spec... but they're only a band-aid for the real problem, which is the wear and poor condition of these engines... and the engines will fail anyway, after a while. It makes more sense to tear down and rebuild while the problems are small rather than covering them and then footing the bill for a more expensive rebuild when something expensive finally fails.

    I've been considering doing this to my oil pump, actually... as a ceramic coating supposedly does wonders for oil life... but I really don't want to put up with the downtime (about one or two weeks) associated with the procedure.

    Ang pagbalik ng comeback...

  8. Join Date
    Oct 2002
    Posts
    29,354
    #348
    Quote Originally Posted by niky View Post
    You'd need a more permanent coating... there are places that do ceramic coatings that will resist combustion temperatures and pressures... but I don't know if this can be applied to the cylinder walls where the piston slides across them.
    It might be more cost effective simply to neutralize the biogas than to coat the engine's interior surfaces.

  9. Join Date
    Oct 2002
    Posts
    29,354
    #349
    Quote Originally Posted by kitsons View Post
    I have heard testimonials on the oil additive with teflon in it that after putting the additives, oil blow byes' stopped and the white exhaust disappeared. Reports also noted that the oil darkened at a much slower pace than without the additive of which either ph was affected or the chamber was coated with teflon coating as the product claims.
    Teflon additives settles down into the oil pad after you shut down the engine. It doesn't form any sort of protective layer. It has been shown decades ago that teflon additives cannot protect an engine any better than just plain motor oil. Also the additives might clog up the oil filter.

  10. Join Date
    Jun 2007
    Posts
    2,857
    #350
    Quote Originally Posted by kitsons View Post
    I have heard testimonials on the oil additive with teflon in it that after putting the additives, oil blow byes' stopped and the white exhaust disappeared. Reports also noted that the oil darkened at a much slower pace than without the additive of which either ph was affected or the chamber was coated with teflon coating as the product claims.

    Some jeepney drivers say that they have had the need for an engine overhaul of at up to five years from the regular two years needed for commuter jeepneys. Not sure if this guys were pulling my leg but seems they really are satisfied with the product and testifies to the products calims.
    Yes, probably it works. I have used it in my car, and the white exhaust from my car disappeared.

  11. Join Date
    Jun 2007
    Posts
    2,857
    #351
    Free e-jeepney rides offered in Makati

    (The Philippine Star)
    Updated November 02, 2009 12:00 AM


    MANILA, Philippines – The Institute for Climate and Sustainable Cities (ICSC) and the [COLOR=blue ! important][COLOR=blue ! important]Motor [COLOR=blue ! important]Vehicle[/COLOR][/COLOR][/COLOR] Parts Manufacturers Association of the Philippines (MVPMAP) announced they will offer free rides in their electric jeepney or e-jeepney in Makati.


    The City government of Makati will offer starting early this month free e-jeepney rides in two routes, the Legaspi Village loop and the Salcedo Village loop. Both routes will start and end at the Landmark Department Store area along Makati Avenue with a 10-second dwelling time in each of the 15 stops in each loop.


    The project is expected to dramatically reduce noise and air pollution in Makati as the e-jeepney does not emit either noise or harmful exhaust emissions.


    The locally-assembled e-jeepney is the very first electric vehicle ever granted a license plate by the Land Transportation Office.



    It was recognized by Discovery Channel’s Ecopolis as “the new modern [COLOR=blue ! important][COLOR=blue ! important]transport[/COLOR][/COLOR] technology with the best chance of saving the world’s cities from pollution problems.”



    It was also awarded a Fr. Satur Neri Award by the Presidential Adviser on Climate Change during this year’s Earth Day celebrations. – Ma. Elisa Osorio
    A proof of the significance of the e-jeepney. More power to MVPMAP, PHUV, INc. and MDJuan for their efforts to build a new jeepney- a clean and environmentally-friendly one.

  12. Join Date
    Oct 2002
    Posts
    29,354
    #352
    Quote Originally Posted by jpdm View Post
    A proof of the significance of the e-jeepney. More power to MVPMAP, PHUV, INc. and MDJuan for their efforts to build a new jeepney- a clean and environmentally-friendly one.

    Word of the wise: Don't count your chickens before the eggs have hatched.

  13. Join Date
    Jun 2007
    Posts
    2,857
    #353
    The Makati activity for the e-jeepney will help in popularizing the vehicle.

    I hope this will be duplicated in areas where e-jeepneys are present: Bacolod and Puerto Princesa!

    I hope e-jeepneys will also be used in Boracay and other resorts!
    Congrats to the e-jeepney proponents and good work Romski123!.

  14. Join Date
    Nov 2009
    Posts
    27
    #354
    Quote Originally Posted by jpdm View Post
    The Makati activity for the e-jeepney will help in popularizing the vehicle.

    I hope this will be duplicated in areas where e-jeepneys are present: Bacolod and Puerto Princesa!

    I hope e-jeepneys will also be used in Boracay and other resorts!
    Congrats to the e-jeepney proponents and good work Romski123!.

    Magaling sa magaling yung ejeepney pero hindi ako ganun naniniwala na tatagal yung mga e-jeepney sa paggamit sa biyahe. Eh kasi naman kung mga regular na jeepney hindi masyadong na alagaan, eh paano pa yug high-tek na e-jeepney? Sino yung mag-aayos kung may nasira dito? Baka din mahal magpaayos kasi yung nag-benta lang ang may pyesa ng mga ito?

  15. Join Date
    Jun 2007
    Posts
    2,857
    #355
    Quote Originally Posted by Meister001 View Post
    Magaling sa magaling yung ejeepney pero hindi ako ganun naniniwala na tatagal yung mga e-jeepney sa paggamit sa biyahe. Eh kasi naman kung mga regular na jeepney hindi masyadong na alagaan, eh paano pa yug high-tek na e-jeepney? Sino yung mag-aayos kung may nasira dito? Baka din mahal magpaayos kasi yung nag-benta lang ang may pyesa ng mga ito?
    This is my reply.

    Di ba lahat ng uri ng saskyan pag hindi naalagaan hindi magtatagal?

    Sino sa palagay mo ang mag-aayos ng mga e-jeepney na pag-aari ng mga operators nito?

    Lahat halos ng piyesa ng auto mahal lalo yung mga bagong sasakyan at hi-tech. Ang e-jeepney kokonti parts so siguro hindi kamahalan.

    Yun nga lang ang baterya na tama ka may kamahalan ng konti.

  16. Join Date
    Nov 2009
    Posts
    27
    #356
    Quote Originally Posted by jpdm View Post
    Di ba lahat ng uri ng saskyan pag hindi naalagaan hindi magtatagal?

    Sino sa palagay mo ang mag-aayos ng mga e-jeepney na pag-aari ng mga operators nito?

    Lahat halos ng piyesa ng auto mahal lalo yung mga bagong sasakyan at hi-tech. Ang e-jeepney kokonti parts so siguro hindi kamahalan.

    Yun nga lang ang baterya na tama ka may kamahalan ng konti.

    Pero hindi ba yung presyo ng pagbili ng isang e-jeepney halos pareho na din sa isang regular na jeepney?

    Tapos sabi mo sa kakaunti lang yung pyesa ng isang e-jeepney.

    Hindi ba tama lang na ibig sabihin na yung kakaunti na pyesa na sa e-jeepney ay mamahalin?

    Kasi lang naman, yung pyesa sa mga regular na jeepney ay di naman ganun kamahal bilin kung may kailangan palitan.

  17. Join Date
    Oct 2009
    Posts
    473
    #357
    JPDM, proper battery management lang ang kailangan niyan para tumagal... and probably baka makapaglabas na rin ng lithium polymer versions (more power and lighter).

    hopefully baka magkaroon na rin ng coreless/brushless motors (more powerfull pero consumes less energy and very low maintenance) sa future para sa mga e-vehicles...

    "baby-steps" lang muna...

  18. Join Date
    Oct 2009
    Posts
    473
    #358
    mas masasagot ni Romski ang price issue... I think kung ipa-factor ang fuel usage.. baka mas mura pa rin ang e-jeepney....

  19. Join Date
    Jun 2007
    Posts
    2,857
    #359
    Quote Originally Posted by Meister001 View Post
    Pero hindi ba yung presyo ng pagbili ng isang e-jeepney halos pareho na din sa isang regular na jeepney?

    Tapos sabi mo sa kakaunti lang yung pyesa ng isang e-jeepney.

    Hindi ba tama lang na ibig sabihin na yung kakaunti na pyesa na sa e-jeepney ay mamahalin?

    Kasi lang naman, yung pyesa sa mga regular na jeepney ay di naman ganun kamahal bilin kung may kailangan palitan.
    Mas mahal na kaunti sa regular na jeepney ang e-jeepney. Kasi brand new talaga ang e-jeepney. Yung regular jeepney yung makina at transmission luma at surplus na. Kaya magkaiba presyo.

    Mga electric vehcles mas mahal talaga sa regular na sasakyan. Pero mas environemtal friendly kumpara sa mga jeepney.

    Inamin naman ng gumagawa ng e-jeepney na hindi nila mapapalitan ang jeepney lalo yung malalayo ang ruta pero yung mga intercity (short routes) puede. Institutions, government centers, schools and industrial estates ang target nila.

  20. Join Date
    Jun 2007
    Posts
    2,857
    #360
    Quote Originally Posted by Phoenix67 View Post
    JPDM, proper battery management lang ang kailangan niyan para tumagal... and probably baka makapaglabas na rin ng lithium polymer versions (more power and lighter).

    hopefully baka magkaroon na rin ng coreless/brushless motors (more powerfull pero consumes less energy and very low maintenance) sa future para sa mga e-vehicles...

    "baby-steps" lang muna...
    Quote Originally Posted by Phoenix67 View Post
    mas masasagot ni Romski ang price issue... I think kung ipa-factor ang fuel usage.. baka mas mura pa rin ang e-jeepney....
    Agree here!!

"e-Jeepney" - The electric powered jeepney