I think I made a boo boo.

[PUNISHER RACING]

http://www.seanhylandmotorsport.com/online/product_info.php?cPath=103_98_28&products_id=123





Uh, yeah they do!!!!!!!

 

[blkhorse]

I can't even count how many times I hit the rev limiter,with and without the kb and,knock on wood, have no problems

 

[ADRENLN]

maybe you should check you spark plugs.......i rev mine to 6200 on occasion as well.
thats with load on the engine while driving.

 

[lvmustanggt]

probably spun a bearing

what is that mean ? educated me

 

[d3ll]

Other info about my baby:
10w30 Royal Purple, changed about a month ago
New spark plugs (forgot the name, but I usually get as close to OEM as possible, maybe Bosch
New IAC installed about 3 weeks ago.
144000 miles, no problems at all before this
Can hear the tap around 3K rpm now, slightly though.

Is it worth fixing or just find a 32 valve engine?
Any other questions about the car, just ask, and I'll reply.

 

[Airbeast]

yup most likely the bearings...

How was your oil level?

 

[4.6andSlicks]

what is that mean ? educated me

A rod bearing comes in 2 halves which rap around the crank. When you spin a bearing, one half overlaps the other leaving a gap at the opposite end.

Every spun bearing I've heard sounds like a deep knock from deep in the engine, not a tap. Anythings possible.

 

[Airbeast]

What do you mean by overlaps? During a momentary lack of oil, all it does is grab onto the crankshaft and spin within the rod/main bearing housing. The grabbing onto the crankshaft messes up the crankshaft and sheers off the metal from the inside of the bearing. The spinning sheers off metal from the outside of the bearing and the rod/main bearing housing creating extra room for things to move around and knock.

Here's my example...

About the only other thing that could make a tapping sound would be if somehow your timing chain jumped a tooth and now your valves are hitting but that's not very likely. They sound similar to where I thought it was another bearing and pulled the engine again. I just had that happen but most likely it's your bearing.

 

[1QWK96GT]

These cars dont have lifters.

What planet are you from? Please know the facts before you post.

 

[Spro]

What planet are you from? Please know the facts before you post.

I was only kiddin. Theres no way they cant have lifters. Anyone with a bit of a sence of humor im sure realized I was kiddin.

 

[blkhorse]

The technical term is lash adjuster's,so in some people worlds they are not lifters

 

[jivepepper]

I have small after market cams, and stock valve springs. I spin mine to 6300-6400 at the track all the time. I have also hit the 6500 rpm rev limiter a few times. It seems to take it just fine.

I think maybe you where a little low on oil, and spun a little faster the 6k. Which probably spun a rod or main bearing.

 

[fast97gt]

maybe your timing chain could be wore slap out, dunno just taken a stab at it. maybe a worn cam lobe, could be the trans, my 97s t45 is gettin ready to go south, and mine sounds like a rod knock time to time at any rpms good luck man and always look for the best in any situation, cause if it is the engine, youll get to put a new motor in it.

 

[COramprat]

I was only kiddin. Theres no way they cant have lifters. Anyone with a bit of a sence of humor im sure realized I was kiddin.

Jokes have no place in Tech. Take it to Off Topic.

To the OP...try to load a recording of it to Photobucket or something we can hear what you are talking about. One bump off the rev limiter usually doesn't do any harm. That is why it is there, to prevent damage before it happens. I bumped off my limiter more times I can count and still haven't had any issues after 185K miles.

 

[Twista]

nevermind