Ok here's the deal i threw my rod bearing monday in my 00' si and i know its mostly driver error but can this be fixed or should i just try for a usedb16 or go with the ls/vtec or the b20/vtec. Money i kinna tight and was wondering the most cost effective method for taking care of this.


thanks for your help

 

fix the rod bearing.......ls/vtec and crvtec would both costs a pretty penny to do the right way. if you can get yer hands on a b16a or b18c block for cheaper than it is to fix than I would go that route.

 

A new bearings, oversized for the one that was spun, and some light machining on the block and crank will fix it right up. Usually.

 

is this a common problem?? I've done a lot of searches and have found alot of people with this problem even people w/ s2000. If it is can someone let me know and also a good place to get this fixed in austin tx.


thanks

 

techs at honda will generally tell you to use the green rod bearings reguardless of what the color/number scheme of your crank is, because it's the most neutral size. repairing them is actually pretty simple, and if you have done anything mildly complex to your car before, you should be able to do this.

drain the oil, remove the header (or downpipe, as is my case) and drop the oil pan. remove the oil pickup and the assembly below the crank. you might need to use a prybar to get it off, but bunch up a lot of rags around it as to not scratch anything in the engine. spin the crank until either piston #1 and 4 or #2 and 3 are at the bottom, and unbolt the rod caps from the rods. to get them off you're probably gonna need to tap them very lightly a few times with a hammer while pulling on them. push each piston up a little once the rod cap is removed...just enough to get the old bearing out.

you can see if a bearing is spun if the little tabs on either side of it are folded inward.

depending on how many miles are on your engine and how long you've been driving with a spun bearing, you might not need any machining.

remember, when you put everything back together use a good amount of assembly grease between the new bearings and the crank, and to torque everything, especially the rod caps to spec.

i just bought a new bearing set from the honda dealer, since i'm rebuilding my engine. the total was a little less than $65 for all 8 bearings, but $10 of that was overnight delivery.
synthetic assembly grease on the bearings has worked well for me in the past.

if you have a friend that knows hondas to watch you as you work it helps a lot. any questions just reply to this thread and i'll get back to you. GOOD LUCK!!!

 

It is fairly common in all piston engines that have been overreved or starved for oil. If the bearings run out of oil, they will overheat, expand, and bind to the crank, making them spin, pretty much the same deal with overreving.

 

yea...at least one of mine went out when i blew my headgasket a couple weeks ago, and the engine overheated a bit. it's no biggie, and definitely not worth replacing the engine over.

 

ok another question if i get the rod bearing fixed are there any other problems that should be addressed after this is fixed like pistons, piston seals, and connecting rods?

 

No, unless they're damaged, but that would be unusual.

 

if your engine still runs, you'll be fine. if you drive with a bad bearing long enough, the piston will start hitting the crank really hard, causing a lot of damage.