Bad engine knock

[CISCOKID]

i recently had the head rebuilt and car was running fine
then i started hearing a slight knocking sound every time the car switched from 2nd to 3rd.
the knocking has gotten worse now its loud while the car is idling so i stopped driving it .
IDK if its something in the head or if the pistons are knocking ??
Any help is appreciated
http://www.youtube.com/watch?v=8vaG5otJKqE

[oyajicool]

It sounds bad. I think the sound is from crank case, like rods or pistons.
I would remove oil filter and cut it open to see if there's metal flakes on element.

[deevergote]

Youtube is being stupid for me and not loading the video...

The first thing to do is make sure your spark plugs are all secure. Touch the top of the plug wires and see if you can feel the knock though one of them. If that's the case, you may have a damaged plug, or one of the plugs could be backing out. I've had that issue due to damaged sparkplug threads in my head, and it made a terrible knocking. I put the plug back in securely, and it was fine again. That's the simplest thing to check, so start there.

If the plugs seem fine, then take a long screwdriver (or better yet, and engine stethoscope), and listen to the engine at different points. At the head near each spark plug, then at the header, then down on the block. If there's a knock inside, you'll be able to get a better idea where it's coming from by doing that.

If it's a rod knock then it'll obviously be in the bottom end. That will require the bottom end to be torn down to replace the damaged rod (and at that point, a full bottom end rebuild would be wise.) If it's in the head, it may be severe detonation (which means your new head might be damaged already.)

[CISCOKID]

Youtube is being stupid for me and not loading the video...

The first thing to do is make sure your spark plugs are all secure. Touch the top of the plug wires and see if you can feel the knock though one of them. If that's the case, you may have a damaged plug, or one of the plugs could be backing out. I've had that issue due to damaged sparkplug threads in my head, and it made a terrible knocking. I put the plug back in securely, and it was fine again. That's the simplest thing to check, so start there.

If the plugs seem fine, then take a long screwdriver (or better yet, and engine stethoscope), and listen to the engine at different points. At the head near each spark plug, then at the header, then down on the block. If there's a knock inside, you'll be able to get a better idea where it's coming from by doing that.

If it's a rod knock then it'll obviously be in the bottom end. That will require the bottom end to be torn down to replace the damaged rod (and at that point, a full bottom end rebuild would be wise.) If it's in the head, it may be severe detonation (which means your new head might be damaged already.)

Thanks, this helps alot
im going to lift the car up today and check out the oil hopefully i didnt tear up the head after all that money i put into it -__-

[Mishakol129]

Check for a hole in the exhaust. It could be extremely maladjusted valves that are just really noisy. To me it kind of sounds like it could be that and/or a hole in the exhaust. Smell any fumes in the engine bay?

Did you adjust the valves when you replaced it?

[CISCOKID]

Check for a hole in the exhaust. It could be extremely maladjusted valves that are just really noisy. To me it kind of sounds like it could be that and/or a hole in the exhaust. Smell any fumes in the engine bay?

Did you adjust the valves when you replaced it?

I dont think its the exhaust i don't smell any fumes, and yes the mechanic that had put the head in torqued everything down and adjusted the valves.
he told me to take it easy and change the oil after 500 miles
but the cars barely at 400 since then and its knocking like this. it ran good for maybe two weeks, then it started running like it lost hp and thats when the knock started.

[wildBill83]

I dont think its the exhaust i don't smell any fumes, and yes the mechanic that had put the head in torqued everything down and adjusted the valves.
he told me to take it easy and change the oil after 500 miles
but the cars barely at 400 since then and its knocking like this. it ran good for maybe two weeks, then it started running like it lost hp and thats when the knock started.

Go back to the mechanic and say WTF?!?!

Also a good note you just posted, it lost HP with the knock, so could be valve train or crank related... I'm just saying ...

[h22sparkle]

I personally would just save up for a swap if your performance oriented rather than another used motor especially an f22 with crazy miles on it.

[Skidd]

Ooo, that sounds terrible, its worse then mine at the moment. It might be worth it for you to have your mechanic take a look at it again, as I suspect it may be under some kind of warranty, especially since its been less then 400 miles. At least see if he covers his work for a certain amount of miles. (I would suspect that he would, since word or mouth does a lot for a business like that) :\

Just pray that the guy got everything meshed up correctly so you don't have any bent valves. THAT could be a time consuming fix.

[deevergote]

I personally would just save up for a swap if your performance oriented rather than another used motor especially an f22 with crazy miles on it.

It could be minor, and he already has money sunk into a rebuilt head. It'd be dumb to rip it all out without even identifying the problem.

If it IS a serious issue, then yes... a swap might be worthwhile.

[CISCOKID]

i wanted to do a swap but i ended up replacing alot of parts when i got the head serviced, new piston rings, bearings, water pump, etc..
im hoping the head didnt get damaged cause i could get a clean block for cheap. if the head is done then i might just park the car and save up for a h22 swap
i miss this car though, im hoping that it is something minor.
thanks for the input guys
this site really helps out

[h22sparkle]

Its not really about how clean the block is but the mileage and the condition of it if that last person took care of it or not.

[CISCOKID]

Its not really about how clean the block is but the mileage and the condition of it if that last person took care of it or not.

thats what i meant by clean, its in good condition.

[evil_demon_01]

i wanted to do a swap but i ended up replacing alot of parts when i got the head serviced, new piston rings, bearings, water pump, etc..
im hoping the head didnt get damaged cause i could get a clean block for cheap. if the head is done then i might just park the car and save up for a h22 swap
i miss this car though, im hoping that it is something minor.
thanks for the input guys
this site really helps out

You had the piston rings replaced as well?
That involves stripping the bottom end, and if that was done I imagine they would have fitted new bearings, so rod knock would be unlikely (but still possible)

Take the car back, and get them to check it out.

[oyajicool]

New Bearings + Sloppy Job = Major Failure