Block??

RockyB · Jun 11th, 2003, 08:26 PM

I finally got off my lazy a$$ and started to think about what should I do to my block? I had the block apart for about 2 weeks now. I going to send it to the machine shop and get it cleaned. Here are my questions: Should I get the block magnafluxed? Since I have there should I go and replace the...DAMN I can't remember the proper name for it but the bass plugs in the block? I'll probably send the 15M head there too and get it cleaned up. I was thinking since it would be there, should I O-ring the head?

Now for the head I read the post where blownb310 talks about do a double valve spring. I would have to

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grind off the "step" in the stock spring seats

. I could have that done at the machine shop or do it myself? I haven't really taken a good look at the RRC head I bought. I really don't know where to begin when it comes to doing double valve springs and put in new cams.

I've built a chevy push rod engine before, but with this foriegn 4 cylinder I feel like I'm lost. Any help would be grateful.
Thanks Rocky

blownb310 · Jun 12th, 2003, 07:07 PM

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Originally posted by RockyB
Should I get the block magnafluxed?

***** I wouldn't bother. I never had a problem with one. As long as you know where the engine came from, and that some idiot didn't leave it out in the winter without antifreeze in it.

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Since I have there should I go and replace the...DAMN I can't remember the proper name for it but the bass plugs in the block?

*****You must mean the jackshaft bushings. They press in like cam bearings would in a Chevy. If you have the block cleaned at the machine shop, they will knock out the old bushings. Otherwise the solution in the cleaning machine will eat them.

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I'll probably send the 15M head there too and get it cleaned up. I was thinking since it would be there, should I O-ring the head?

*****No need to O-ring the head. If you were running big compression [12 to 1 or more] or a boost, then you would O-ring the block. My 13 to 1 E16 has the block O-ringed. I also have a spare E16 block decked .003 for cleanup and O-ringed. It was for a future project that never happened. I will probably never use it.

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Now for the head I read the post where blownb310 talks about do a double valve spring. I would have to . I could have that done at the machine shop or do it myself?

*****I made my own cutting tool for that operation. It works with any type of drill motor. A good machine shop can do it for you though. Being an E-series Nissan, they might not have the cutting tool for that odd size guide and valveseat. Most are usually used to doing "Chevys".

Lazarus_023 · Jun 12th, 2003, 07:43 PM

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Originally posted by blownb310
*****You must mean the jackshaft bushings. They press in like cam bearings would in a Chevy. If you have the block cleaned at the machine shop, they will knock out the old bushings. Otherwise the solution in the cleaning machine will eat them.

or freeze plugs. they will likely remove those, too... and you will want to replace them.

Lazarus_023 · Jun 12th, 2003, 07:45 PM

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Originally posted by blownb310
I also have a spare E16 block decked .003 for cleanup and O-ringed. It was for a future project that never happened. I will probably never use it.

i'll take it.

gotsta rig up my E15T one-a these days.

vroom, vroom.

Crazy-Mart · Jun 13th, 2003, 01:53 AM

Hey blown, how much it costed you to get your block oringeg ?? im figuring i can get it to a Cnc shop and have it done since i cant find any engine shop that have the proper tools and copp wiring to do it...

blownb310 · Jun 13th, 2003, 08:12 AM

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Originally posted by Crazy-Mart
Hey blown, how much it costed you to get your block oringeg ?? im figuring i can get it to a Cnc shop and have it done since i cant find any engine shop that have the proper tools and copp wiring to do it...

***** Hi Martin,
My Dad is a machinist, and used to have his own shop. Anytime I needed a block machined, he'd do it for me for free, while I took pictures for the web page.

Nice huh?

Before he sold his shop, I hauled a bunch of blocks down there to have them all decked and O-ringed. My CA20 block is all ready to go!
BTW, the block pictured is my project "1608" A-series engine. It started out as a 1498cc A15. It was originally a 77mm bore, and now it is .080" [2mm] over. has 79mm Subaru Justy pistons in it!

This will be for my '77 Datsun B210. Well I've got some FWD Nissans, a 4WD Nissan, so I had to have a RWD Nissan too right?

Crazy-Mart · Jun 13th, 2003, 12:30 PM

Ahhhhh you lucky guy !!

btw the pics doesnt show (?) ... i knew some subaru stuff was working w nissan engine but the pistons ?? must have taken a while to figure that one out !!

blownb310 · Jun 13th, 2003, 08:49 PM

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Originally posted by Crazy-Mart
Ahhhhh you lucky guy !! btw the pics doesnt show (?) ... i knew some subaru stuff was working w nissan engine but the pistons ?? must have taken a while to figure that one out !!

***** Sorry about that. I reposted the pics. Actually I got the idea from a guy on the Datsun 210 website from Costa Rica. He hasn't ever built one, but heard it can be done. So several people in the 210 club are waiting anxiuosly for me to get it done and tell them how I did it.

The Justy engine is only three cylinders. So the guy at the Subaru dealer was pretty surprised when I ordered four pistons and two sets of rings.

RockyB · Jun 13th, 2003, 09:07 PM

Hey, Thanks for the info. I'm going to send the block out next week. I had read somewhere on the n12turbo site that they o-ringed the head and not the block. That is where part of my confusion came from because I know you could o-ringed the block. Anyhow I'll have it cleaned, change the freeze plugs, check the deck, and check the cylinders for out-of-roundness. Anything else I should do since it would be there?
Thanks Rocky

blownb310 · Jun 13th, 2003, 09:30 PM

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Originally posted by RockyB
Anything else I should do since it would be there?
Thanks Rocky

***** I can't think of anything. Like I said, they might drive out your jackshaft bushings before cleaning your block. Depending how thorough they are, they might remove the pressed in oil galley plugs too. My machine shop always did. That's why I still have a few of the Nissan oil galley plugs in stock. I used to buy a few extra of all of the little hard to get parts, when building E16's. I hate to stop building an engine and wait two days for the little knick-knack parts to come in.