Hi every body < i m a new here could someone help me , my eyes will get out because of searching on websites all day my problem is that i have a HWDA 1.6 engine with a Ti-VCT system and all websites says that the engine mounted with the VCT have an HXDA engine code ? how it can be ? could someone help me on this ? another thing , we have two types of engines 100 hp and 115 hp could some tell me what is the difference between both of them without refer to the engine ? and why in some websites the engine Ti-VCT 115 hp is called 115/120 hp ??? i will be thankfull if someone can help me on this
this is a 100 bhp 1.6 engine it does not have a ti vct system this is an hxda ti vct the differences are pretty clear to see so if you have an hxda you have the engine at the top and not a ti vct system it cant be retrofitted to an hwda engine as the engines are internally very different the 115bhp ti vct does not come in hwda form
but i have it already : :)
Code engine : HWDA
Type Engine : TI-VCT
i think if i have a HWDA i can change it to an TI VCT engine with 115hp with modification of some parts and the new engine will be mouted in another vehicule because of ECU and so on ... what do you think ?
the top pic is an hwda engine the bottom the hxda what engine do you have from the pictures if its the top and thats how it looks its not a ti vct engine hwda does not come in ti vct form and its not as easy as change a few bits they are setup completely differently
easily explained you dont have a ti vct what you have is standard vct that all ford engines had so you have the 100 bhp zetec se engine codenamed sigma this like all ford engines has vct technology this explains it
Variable Camshaft Timing (VCT) is an automobile variable valve timing technology developed by Ford.
It allows for more optimum engine performance, reduced emissions, and
increased fuel efficiency compared to engines with fixed camshafts. It
uses electronically controlled hydraulic valves
that direct high pressure engine oil into the camshaft phaser cavity.
These oil control solenoids are bolted into the cylinder heads towards
the front of the engine near the camshaft phasers. The powertrain
control module (PCM) transmits a signal to the solenoids to move a valve spool
that regulates the flow of oil to the phaser cavity. The phaser cavity
changes the valve timing by rotating the camshaft slightly from its
initial orientation, which results in the camshaft timing being advanced
or retarded. The PCM adjusts the camshaft timing depending on factors
such as engine load and RPM.
For twin cam or DOHC engines, VCT was used on either the intake or
exhaust camshaft. (Engines that have VCT on both camshafts are now
designated as Ti-VCT.) The use of variable camshaft timing on the
exhaust camshaft is for improved emissions, and vehicles with VCT on the
exhaust camshaft do not require exhaust gas recirculation (EGR) as retarding the exhaust cam timing achieves the same result.
VCT on the intake camshaft is used primarily for increasing engine
power and torque as the PCM is able to optimize the opening of the
intake valves to match the engine conditions.
Twin Independent Variable Camshaft Timing (Ti-VCT) is
the name given by Ford to engines with the ability to advance or retard
the timing of both the intake and exhaust camshafts independently,
unlike the original versions of VCT, which only operated on a single
camshaft. This allows for improved power and torque, particularly at
lower engine RPM, as well as improved fuel economy and reduced
so youre engine is a 1.6 100bhp zetec se engine thats it its not a 1.6 115bhp ti vct engine
thanks ..Could i change a HWDA to TI VCT ?
no they are 2 different engines internally oil pathways are different for a start as are the internal designs easiest way to do it is fit a ti vct engine
so can you explain to me ! how i found a HWDA block code with a Ti vct System !
thanks a lot , but i already understand you from the first day . the question is if i have alreday a Ford focus 1.6 Ti-VCT(HXDA engine code ) and i have a dammage on cylinder Block . could i change it with a HWDA Cylinder block ?? i hope you understand my question ...
no its not posible for these reasons the engines look the same on the outside however the ti vct bottom
end has only the same conrod bearings water and oil pump as the standard
1.6 thats all the ti vct has a electronically controlled water oil heat
exchanger attatched to the inside of the oil filter
housing to aid faster warm up and aid cooling of the oil during normal
operating temperatures ,the piston housing the piston pin area are
reinforced and the pistons crown thickness has been increased over
standard ,there are larger 3.5mm deep valve
pockets designed into the bottom end to account for all possible cam
timing variations ,the crankshaft was redesigned from an 8 counter
weight to a 4 counterweight and the standard symetrical tumble type
ports on the intake and outtake were changed to asymetrical ports, the spark plug
has been lifted by 1.5mm to make the water galleries closer the head,
has different water paths with modified oil circuit and restrictors in
each cam gallery, end bearings and cams integrated with a built in vct
bridge with increased compression and increased valve llift
the whole engine inside is different it has way different tolerances
the pistons are totally different the piston bores have different
linings the oil exchanger isnt in the original 1.6 which is required
even the wiring to the engine is different as is the ecu so as i said
the bottom end will not work you need a ti vct bottom end or whole
engine a standard 1.6 will not work as the cam timing will cause the
pistons and valves to smash together hence why the ti vct has deeper
pockets to prevent this as well as moving various internal parts around
thanks friend for these information , pearhaes i will have some other questions in the next few days i hope you be here as usally , and thanks again :)
hello could you help me with some pictures if you have ? about the process of disassembly of Ti vct system
hello could you help me with some pictures or book if you have ? about the process of disassembly of Ti vct system and how its work ? :)