Rod Knock .. where do i get parts?

[Twiztid_S13]

recently the engine started knockin .. sucks .. well once i noticed it .. i just parked the car and put it up for sale .. but my dad wants to fix the heap being that ive spent like 2 g's on aftermarket crap and it just decided to **** on me .. so for his sake what rods to i use .. or do i have to buy some online ? so you all that have rebuilt a ca what parts do i use?? CA18DE rods and bearings? or to i have to go aftermarket? thats all i wanna know.. thanks in advance.

[redamnavit]

You don't need new rods. None of what you have to do even required you to remove the rods from the engine. You need rod bearings. While you're down there you might as well change the mains. Federal Mogul, Clevite, and probably some others make them; all of that (and the rest of what I say) is SEARCHable. You've got two options:

1 - quick and dirty, in the car: Pull the oil pan, remove the girdle, main caps and rod caps. Get a set of standard size bearings and replace the existing ones. This can be done without dropping the crank, again SEARCH.

2 - the correct way: Pull the engine, remove the crank. Get a set of oversized bearings. Have the crank turned down to match the bearings. Reassemble. The real way to do this is to take the bearings, put them in their appropriate places in the rod/block, torque the bottom end to spec without the crank and measure (via the micrometer you just rented) the inside diameter of the openings. Note these and bring them to the machine shop with your crank and the factory tolerances for bearing clearances. You can bring the whole engine to the machine shop and they'll do the measuring for you but if you're willing to do that you might as well rebuild the whole thing.

Which method you choose depends on your patience, your budget, the miles on your engine, how long its been knocking, etc. Your call.

[8ggalant]

since his question is answered ill ask mine here being its on the same topic..

i think i have this same problem...can someone help me out...

took the car out about a week ago and my wife NEVER drives it so i told her to....about 3miles away from home its starts tapping loud as hell (couldnt isolate the sound)...since wer were @ our destinations we parked it and i let the turbo timer shut it off (while tryin to isolate where the sound was coming fom)....we went on to do what we had to do and i said id limp it home because i was SURE it was knockin (im pissed cuz im leavin to japan in 6 months and was hoping not to spend any more money) so we come out of the store ready to "limp" it home...and NOTHING....purrs like a kitten ??????????????so yesterday on my way to work my hot pipe blew off and the noise came back ...im thoroughly confused...do u all think this is rod knock...i dont wanna keep driving the car if it is but its my daily...if i have to rebuild/ so be it...ill just strip the car and take the parts w/ me lol..

thanks in advance

[boost_boy]

since his question is answered ill ask mine here being its on the same topic..

i think i have this same problem...can someone help me out...

took the car out about a week ago and my wife NEVER drives it so i told her to....about 3miles away from home its starts tapping loud as hell (couldnt isolate the sound)...since wer were @ our destinations we parked it and i let the turbo timer shut it off (while tryin to isolate where the sound was coming fom)....we went on to do what we had to do and i said id limp it home because i was SURE it was knockin (im pissed cuz im leavin to japan in 6 months and was hoping not to spend any more money) so we come out of the store ready to "limp" it home...and NOTHING....purrs like a kitten ??????????????so yesterday on my way to work my hot pipe blew off and the noise came back ...im thoroughly confused...do u all think this is rod knock...i dont wanna keep driving the car if it is but its my daily...if i have to rebuild/ so be it...ill just strip the car and take the parts w/ me lol..

thanks in advance

Rod knock doesn't stop and start. Once it starts, it starts. Bring your rpms up to about 2800-3000rpm and listen for this tapping/knocking noise. If you hear it tapping at that rpm and it disappears when you lower your rpms below the amount I specified, then you indeed have rod knock. If the knocking/tapping is consistent throughout the rpm range, you can either have a bad injector or bad lifter(s) or worse, spun a the main bearing. Whatever it is, it's repairable.

Dee

[8ggalant]

thanks d and sorry about the double posti am installing some cams shortly so ill go ahead and instpect the rest of the head then

[Vetal]

Why removing main caps when changing rod bearings?

[iliketocrash]

if you were to just replace the bad rod bearing with oem ones wouldn't the problem just come back again? or does it depend on the severity of damage the knocking rod has already caused?

[themadscientist]

depands on if the bearing is so bad that the crank has been damaged. I would do a complete rebuild, not just replace the rod bearing. They don't fail for no reason and if you don't identify why it failed the new may as well in short order.

[r34 gtr]

when mine ran out of oil it knocked loud as hell regardless of what rpm it was at. did this all 5 times or whatever it was. and it always went away when new oil was added.

if your car is knocking, i wouldnt chance it. just rebuild the engine (new bearings, appropriate gaskets, fasteners, etc.) so you wont have to worry about it for a long time. just make sure you dont half-as$ the front and/or rear main seals. i did and now it leaks oil in the most annoying of ways.

- tim

[Vetal]

As for me, i would risk replacing 20$ worth bearings HOPING that knock will go away instead of immediately starting to rebuild the engine

[boost_boy]

As for me, i would risk replacing 20$ worth bearings HOPING that knock will go away instead of immediately starting to rebuild the engine

Though has been done!

Dee

[iliketocrash]

i'm seriously considering just replacing the bearings now because i no longer have the means to rebuild the engine for the moment. but if its gonna make things worse or just not last long then i'll just wait.