assh944

Iv finally got everything ready for MOT took my 84 944 for a quick drive to notice there was this ticking/tapping noise coming from engine it was dark so couldn't see much. The noise ticks with the revs of engine and gets louder with more rpm if looked on other threads some say exaust manifold others scare me. What shall I do first.

ehokana

Double check your fluids. If its coming from the engine as you said it could be something very easy like a lifter sticking- I had a problem that sounds like what you described and some seafoam followed by an oil change cured it. I'd start there for narrowing it down but I could be way off

assh944

Seafoam??? I'm in the uk and Iv never heard of this stuff. What is it. And where can I get it.

Geldfalle 944

Did you recently do the timing belt?

ehokana

Sorry, I didn't even think about where you are located. Seafoam is a gasoline/oil additive that cleans deposits from the engine and lubricates the upper cylinders. I can find it at any auto parts store around here, although I don't know its availability outside of the US- I would assume that any engine treatment that lubricates and removes deposits would do the same as Seafoam though

assh944

Nope timing belt hasn't recently been done. But will take a look at it today after the football/soccer

assh944

Today Iv just checked fluids did need a top up so topped up.
I also had a check my injectors Haynes manual tell me to unplug and if idol speed changes I did this and there was no change in speed at all. Does this mean injectors are good then???

assh944

Iv put in a engine cleaner and a injector cleaner (redex)
and the noise has gone

ehokana

Great! I hope it fixed the problem then

assh944

Yes engine is running sweet

Geldfalle 944

I was going to suggest wrong torque on the crank pulley or having the crank pulley reversed. Glad it was just a sticky lifter!

darenchu

I have the same problem; I read several threads saying to pour 1/3 in the crankcase 1/3 in the brake booster vacuum line and 1/3 in the fuel tank. I know where the brake booster vacuum line is.. but can anyone point out where to pour the Seafoam in the crankcase (like in a picture)?

ehokana

Add it to your oil- I'd do that only at first since that tends to be all it takes. Take it for a nice long drive to let it work through and then change your oil.

darenchu

Alright so just to be 100% sure, we're talking about the bright yellow cap in the center next to the brake booster right?

ehokana

Exactly. Oil fill cap toward the back, drivers side of the engine.