I have a spare 1993 13b engine and transmission sitting in my garage and I want to start disassembling the engine and see why the engine went bad and if I some how come up with some money then I want to try to build the engine for the track. Its been sitting in the garage for about half a year now so I hope nothing internal went bad from just sitting there.

Anyways back on topic, I want to make sure I have all the tools to disassemble the engine and jut like what the title says, “I need one tool before I start my disassembly” the tool that I need is to remove the tubular dowels. I don’t know what it is called but it looks like a long stud that is threaded at the end and has a solid/cylinder that goes up and down the stud to pull the tubular dowels out from the side of the housings. Basically I want to make it. And all I need to know is what size stud and or thread is it? Or in other words, what size bolt threads into the tubular dowels?
Thanks,
David

 

a sledge hammer like dowel pin remover ?

Check this site out. It's got all the tools you need!

TOOLS

SOME HERE TOO

 

You can get a tool from mazdatrix that screws in to the dowells and you just pull em straight out. The slap tool thing is over kill for them, they come out real eazy once you get a few threads in and pull.

 

you can make the tool yourself.....


get a long bolt that will screw into the threads of the dowel pins..... take bolt and weld a T-handle onto it.

No need for a slide-hammer or mazdatrix's tool

 

I am planning on making it but I need to know the diameter and the thread pitch.

 

The soon I know the better because I'm at work right now and I could make it here.

 

You will most likely want to purchase a rebuild video also. If I remember correctly in Pineapple Racings rebuild video they mention the dowel thread pitch.

 

I've disassembled many many 13Bs at this point in my life and I've never used (or seen the need for) the tool you're referring to

 

Rich speaks the truth. You really don't need to invest in a tool for that.

 

i guess ill just start disassembling it and when i get to the dowel then ill see what i can do...

 

+1 im like the biggest noob on this site disasembled my whole motor... never did i use a tool for the dowels... came out easy...

 

I used a lug nut to remove them. Worked great!

 

+2 didn't need any tool when we rebuilt... dowels came right out...

 

Not necessary no, you can just use one of the long tension bolts to pull them out. I did have one instance where one was kinda stuck and it was handy to have.

 

^^ ditto that. I just used a tension bolt. Came right out. Sounds like you should really invest in one of the many 13B rebuild videos that are available BEFORE you begin disassembling that engine.

 

^ yea I just got the mazdatrix 13b rebuild DVD.
Thanks for all the input though. I'll keep everyone posted on my rebuild once I start it, and ill try to take a lot of pictures. This is going to be my first rebuild I have ever done on any engine so I'll be needing all your help.

 

I've used a tension bolt to pull the dowels out too. Works like a charm. Sometimes you have to try different angles for that one stubborn dowel. The tool just makes it quicker I guess which is important if your shooting out daily engines?

The old Rotary Aviation one is pretty good too. I have both.

thewird

 

I always use a motor mount bolt. Don't like roughhousing with the tension bolts.

Only time you're going to have one that's REALLY stuck is in a motor that's been CRAZY overheated or something.

Dale

 

I guess technically what I used is called a lug bolt.