I tore town a B16 block I bought and as dumb as it sounds, I found some bearings that I'm not familiar with. Yes I am new to this, and this is going to be my first build, but I thought I had it all figured out. I have ACL main bearings, rod bearings, and a set of thrust washers. What else is there besides those? I have pictures of the block and there are <U>two</U> sets of grooves for thrust washers, and there were other bearings on the other "main" areas (journals? Don't know what they're called). Check out the pics please.







Sorry if this is stupid, but please help me anyway.

 

Um, i not sure about your first question regarding the main journals, yes, each side should have a bearing, if thats what youre asking.

The thrust washers go on the journal on the right that you have pictured.

Are you doing this without a factory manual?

 

Okay, there are two sets of grooves...only the right one gets thrust washers? What about the other set of grooves? I thought you only used two. I must be confused.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Combustion Contraption &raquo;</TD></TR><TR><TD CLASS="quote">each side should have a bearing</TD></TR></TABLE>

What bearings are used there? The main bearings look like larger rod bearings. The ones on the sides looked more like thrust washers. What the heck are those? I have a manual on my computer, but I haven't gone through it yet. Still thought I knew what bearings were what.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheHooded_Mike &raquo;</TD></TR><TR><TD CLASS="quote">I tore town a B16 block I bought and as dumb as it sounds, I found some bearings that I'm not familiar with. Yes I am new to this, and this is going to be my first build, but I thought I had it all figured out. I have ACL main bearings, rod bearings, and a set of thrust washers. What else is there besides those? I have pictures of the block and there are <U>two</U> sets of grooves for thrust washers, and there were other bearings on the other "main" areas (journals? Don't know what they're called). Check out the pics please.

Sorry if this is stupid, but please help me anyway. </TD></TR></TABLE>

It sounds like you are asking if there is supposed to be two sets of thrust bearings in there due to the flange that is cut into the side of the main bearing bores, is that correct?

Usually thrust is taken up on only one main bearing. I am not sure which one it is one this block so I don't want to guess. If you do not have a manual, GET ONE before attempting the rebuild or you are going to throw a lot of money down the drain. See if you can buy one cheap on Ebay.

The journals are only on the crankshaft itself. There are the 'main journals' which are concentric with the main bearings and the 'rod journals' which the connecting rod bearings ride on (on a cushion of oil, of course).

 

Here are my questions simply put:
1. One set of thrust washers needed, two sets of grooves...why?
2. Main bearings sit flat on the surface that the crank sits on, correct?
3. What bearings are used on the side of the main bearing surface?

 

1. I have no idea, thats just the way it is.

2. Yes, as flat as half a circle can be.

3. None. What are you talking about?

 

 

You know where the thrust washers sit, on the side of where the main bearings sit? Well there were bearings on the sides of the other "main" areas where there are <U>no grooves</U>. Did these bearings come from the crank? They looked like they might sit on the side of the main journals on the crank.

edit: they aren't pictured in those diagrams

 

That is where I'm talking about, on the sides...marked red in the pic obviously. Do they sit in the main journals? What are they called? Please bare with me rofl.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheHooded_Mike &raquo;</TD></TR><TR><TD CLASS="quote">You know where the thrust washers sit, on the side of where the main bearings sit? Well there were bearings on the sides of the other "main" areas where there are <U>no grooves</U>.
</TD></TR></TABLE>
I am not exactly sure what you mean by 'grooves', can you elaborate? Are you talking about in the block or on the bearing itself?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">

Did these bearings come from the crank? They looked like they might sit on the side of the main journals on the crank.

edit: they aren't pictured in those diagrams</TD></TR></TABLE>

 

I pulled out the crank and there were bearings on the block on the sides like where the thrust washers sit, but no grooves are cut into the block like there are for the thrust washers. On the block there are two sets of grooves cut out (shown in the pictures), one for the thrust washers, the other I dunno. In the most recent picture, I marked where these bearings were sitting in red. They were held in place only by gunk, and not grooves. They looked like they came off the crank, especially since they did not sit in any groove that would hold them in place.

edit: Instead of grooves, I would say notches. Notches cut into the block for the thrust washers to sit. The spots where there are no notches cut had bearings sitting there...only held in by old oil.

edit2: Would these things be shims and not bearings? Everything I'm talking about is clearly pictured above with descriptions. On the sides like the thrust washers, but with no notches cut. Thanks.


Modified by TheHooded_Mike at 4:15 AM 6/14/2006

 

Okay, 100 views. Let me ask this: What are the parts needed in order to secure the crank? Main bearings (5 sets), thrust washers (1 set), 5 main caps, 10 main studs. Anything else?

 

dude no matter what you see, the thrust bearings(2) going on each side of the NUMBER 4 MAIN BEARING/MAIN JOURNAL/MAIN CAP ON THE BLOCK SIDE WHERE THOSE OBVIOUS GROOVES ARE(HALF MOON) and the crank and main cap in that portion hold those washers in place. The other slight grooves are just machined areas that honda cut prolly for ease of oil movement, FORGET THOSE. You are going to blow your **** up if you dont read a manual or something. NUMBER FOR ON BOTH SIDES FOR THE THRUST WASHERS, PERIOD, NO MORE QUESTIONS. number 4 is from the crank pulley end over.

 

It's funny how you get all mad when I wasn't even asking about the thrust washers and you still don't even answer my question. Read next time...I get it about the thrust washers, only one set on #4. At first I was asking why there were two sets of notches but only got an answer of "I have no idea, thats just the way it is". Wow great response, really clears things up. Either way, now I know that those "extra" notches are unused. What I am asking is, what bearings did I find on the other mains on the SIDES? They were sitting there just like thrust washers would be, only <U>not</U> in a NOTCH. I HIGHLIGHTED where they were in RED in my last picture. LOOK AGAIN:



Same picture unedited: Look at #3 and #4 mains...notches. Now look at #5, no notches, but there is clearly a mark where a bearing was sitting. Only held in place by crud. WHAT BEARING WAS IN THAT SPOT? AM I MAKING THIS UP?


You can sort of see the marks on #1 and #2 also in this picture. Again no notches:

 

pls read the manual first. the main bearings and con rod bearings cant be mixed up. they should go back in their orig places.

 

its impossible for other bearings to be there, unless the bearing got flattened perfectly to leave behind squished remains on the sides. Show us these "bearings" please.

 

I might have been mixed up...I don't have those other bearings around, but I could've sworn I pulled them off the sides along with the thrust washers. Anyway, all I needed to know is that nothing goes there I guess. Thanks, I'm really sorry for the fuss but I'm good now. I do in fact have a manual, I just wanted to make sure I wasn't missing anything when I put it all back together. Again, thank you.