323B cam timing
- Thread starter Johnkelly
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323B cam timing
Is 323 the body ..or engine.. code.
This is a predominantly UK forum. Where the palio. Siena. Etc are a mystery.. as they were never sold here.
The engine is almost certai ly in punto etc.
Charlie
is this after being apart.. of had just started to be flagged up?
maybe worth a relearn.. to see if it's just getting the signals in a muddle..
COMMON after cambelt changes
Bernievarian
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Hi John (or Kelly ?)
as Charlie's wondering, it would be helpfull to get a bit more about the events appearance…
Regarding the process, the Reason to physically lock the shafts in place is to (obviously)avoid them to move, specially with VVT (variable valve timing).
The bad correlation between cam and crank sensors tells us it has already happened :-( so unless you can rely on traditionnal engine/pulley marks I'm afraid you'll have to use the locking Tools to re-time it correctly: the crank flywheel got a missing notch in to tell the ECU when the TDC is reached, the camshaft has an extra cam and a Hall effect sensor to tell the ECU which of cylinder 1 or 4 had reached the ignition TDC . If both signals are not occuring in expected range, you got the correlation error ...
VVT is achieved by (angular) moving the cam shaft relatively to its pulley, at engine stop, the driving valve should lock the oil on each side of the VVT rotor so the pulley should stay in place, but how to be sure ?
The tools not only locks the camshafts and the pulleys but also put them back in synch in case the belt had slipped a few teeth; there is only one position where all locks will fit.
Serious matter here, yo can potentially ruin the engine, worth buying the tools !!
BRs, Bernie
If someone here helped You fix -or better, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
as Charlie's wondering, it would be helpfull to get a bit more about the events appearance…
Regarding the process, the Reason to physically lock the shafts in place is to (obviously)avoid them to move, specially with VVT (variable valve timing).
The bad correlation between cam and crank sensors tells us it has already happened :-( so unless you can rely on traditionnal engine/pulley marks I'm afraid you'll have to use the locking Tools to re-time it correctly: the crank flywheel got a missing notch in to tell the ECU when the TDC is reached, the camshaft has an extra cam and a Hall effect sensor to tell the ECU which of cylinder 1 or 4 had reached the ignition TDC . If both signals are not occuring in expected range, you got the correlation error ...
VVT is achieved by (angular) moving the cam shaft relatively to its pulley, at engine stop, the driving valve should lock the oil on each side of the VVT rotor so the pulley should stay in place, but how to be sure ?
The tools not only locks the camshafts and the pulleys but also put them back in synch in case the belt had slipped a few teeth; there is only one position where all locks will fit.
Serious matter here, yo can potentially ruin the engine, worth buying the tools !!
BRs, Bernie
If someone here helped You fix -or better, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
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