4v engine knock!
#1
4v engine knock!
im new here and i was wondering if anyone can help me out. i have a 2004 mach 1 and there is a loud knocking sound coming from the back of the engine (sounds if it is coming from the intake). also when u turn off the ignition you can here the compression leak back through the intake. what could be the problem
#3
engine is all stock. catback is unbolted.its got a 6-spd tranny swap, short throw, and stage three clutch. i had a machanic look at it today and he said it sound like a rod because it has that ratta-tat-tat sound. ive spun a rod bearing in my 01 cobra b4 and its not fun. are these 4v notorious for this or is it just the way i drive. it seems these internals are too weak for these cars
#7
i dont launch the car too much or do a whole lot of down shifting. for future reference would it be better to shift at 6500 r's istead at red line (for my internals sake). i beleave the power starts to drop somewhere around 6200 rpm anyways. right?
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