ok so i just started up my b18a after doing the swap. i dont got any codes. but there is a loud tapping sound coming from the engine. what could it be ?

 

hmm it could be a broken valve, a rod, piston slap, bottom end coming undone. please a little more info would be nice

 

could be injectors, you could need a valve adjustment- need more info.

 

its not hte injectors because its a really loud tapping, one you can hear over my open header

 

Does the tapping get louder and faster as you rev the engine? Or does it stay constant but loud?

 

yeah it does get louder and faster as the engine is revved

 

Sounds like you need to adjust your valves man.

Stick a flathead on your valve cover in a bunch of areas around where the valves are... and you will be able to tell if it is your valves tapping...

Let me know.

 

well i did that screwdriver on hte valve cover thing and it does sound louder near the #1 and 2 cylinder valves, but what i couldnt determine was whether it was coming from the bottom or the top of the motor, but ill try adjust my valves and see what that does, but it does sound like its coming from the back of the motor, more in the intake mani side near the #1 and 2 cylinders

 

Hmmm... Ya I see what your saying.

Only way I can say is to pull the valve cover off and check to see if the valves are within spec... but remember to adjust them when the engine is cold....

 

ok ill adjust the valves and tell you how that goes and if it fixes it. what else could it be beside the valves ?

 

If its not the valves, then well... it could be your rod knocking... but lets go one by one... so keep me posted.

 

ok i adjusted the valves and still the knocking

what could it be now ?

 

See the post above.

 

yup its a rod bearing, i took off the #1 rod cap and only half the bearing was there, with metal chunks all over the pickup and baffle

 

ouch, bought a **** motor

 

well never really bought a **** motor because i never paid for it yet, the deal was i pay once i get a running motor going. the price to fix the motor is gonna come out of the cost of it

 

^Smart guy^ if your not just trying to save face

 

no im not trying to save face, im buying the motor from a friend of mine so thats why its like that. my friends dont rip me off