CMac,s 1971 Datsun 510

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Cmac
Posts: 291
Joined: 26 Oct 2006 17:03
Location: Sacramento

Re: CMac,s 1971 Datsun 510

Postby Cmac » 24 Mar 2013 10:00

1968 Cross member using nismo sr20det motor mounts and the head will not clear the hood. I spoke to Dave Patten the other day about the Rally hood mold that has in his fotfab inventory. The front of the hood is altered and raised by 3/4 of an inch in order to fit a L head on a NAPZ block I think he said. He sent me a photo of the mold and it looks good to me. The mold is even orange so how can I go wrong.

I have been looking at a few options. I have spoken to Mazworx and Andreas Miko both are no non sense here's your facts type people and I have to say have been very informative. In fact Mazworx has just released this PDF because they are getting flooded with emails and phone calls because of the success of this swap and kit that they provide.

http://www.mazworx.com/content/instruct ... 20Info.pdf

There is more information on the www.sr20-fourm.com as Boy Blunder has stated so much so that in some cases its over whelming.

I think the worst part of this swap as a whole is the fact that the complete intake system and ecu that I currently have is rendered useless for this application and will need to be replaced and or re fabricated.

Super X
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Location: Miami, FL
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Re: CMac,s 1971 Datsun 510

Postby Super X » 24 Mar 2013 14:53

Cmac wrote:1968 Cross member using nismo sr20det motor mounts and the head will not clear the hood.

That's your issue. Even with a '68 c/m the S13 mounts are taller than the 510 mounts. A 69-73 c/m with 510 mounts clears the hood with the vvl head. Trust me. I'm 100% certain on this :)

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angzt
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Location: NJ

Re: CMac,s 1971 Datsun 510

Postby angzt » 26 Mar 2013 09:05

I'm running a DATSPORT front crossmember with NISMO mounts. My head did not clear the hood when closed.

That's when I chopped the mount brackets.

I forgot how much I removed ... (It's been well over a year since I did it)

It drops the engine a tad bit deeper, sure your oil pan is lower, but your improving CG.

Cmac
Posts: 291
Joined: 26 Oct 2006 17:03
Location: Sacramento

Re: CMac,s 1971 Datsun 510

Postby Cmac » 26 Mar 2013 19:30

Well for tonight I pulled the s15 head apart to see just what I am in need of to replace even if I were to keep this head looks like the following
2 Valves mushroomed on the top from the beating.
valve seals are junk

Super X were are the photos of your Car?

Angzt are have you also installed the VVL head on your car?

lewoolf2
Posts: 46
Joined: 10 Jan 2007 21:05
Location: Central Ca.

Re: CMac,s 1971 Datsun 510

Postby lewoolf2 » 02 May 2013 17:20

Update
! you got it back on the road?

Cmac
Posts: 291
Joined: 26 Oct 2006 17:03
Location: Sacramento

Re: CMac,s 1971 Datsun 510

Postby Cmac » 02 May 2013 19:24

Well Lee here is the update. The last time the lifter came off I could not find the valve train shim. I pulled the head only to find a slight leak on the # 4 cyl at the rear of the block directly between two water ports. I kept on digging pulled the motor out of the car put it on the stand and found that lost shim had floated around found its way to the top of the rod bolt and impacted itself into the bottom of the # 4 piston and barrel. Needless to say the motor is now stripped waiting for a new oil pump at this point before I can send it off for machining / decking etc. Now that it is apart its hard to say how stupid I am able to go and yet be reasonable about my goals. This year I was planing on putting some miles on the car and finally enjoy it now it seems it has taken residence in the center of the 3 car garage.

lewoolf2
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Joined: 10 Jan 2007 21:05
Location: Central Ca.

Re: CMac,s 1971 Datsun 510

Postby lewoolf2 » 19 May 2013 12:25

Truly sorry to hear that!

Cmac
Posts: 291
Joined: 26 Oct 2006 17:03
Location: Sacramento

Re: CMac,s 1971 Datsun 510

Postby Cmac » 14 Oct 2013 20:13

Image

Here is the damage one of the rocker arm guides did to the bottom of cylinder # 4 it also broke the skirt of the piston. I have been collecting the parts to rebuild the motor since its been out of the car but got sidetracked 2 weeks ago when I found this I could not pass it up it was to good of a deal.

Image

Os Giken adjustable super lock

Cmac
Posts: 291
Joined: 26 Oct 2006 17:03
Location: Sacramento

Re: CMac,s 1971 Datsun 510

Postby Cmac » 02 Nov 2013 21:48

Image

12mm bolt with 13mm collar

Cmac
Posts: 291
Joined: 26 Oct 2006 17:03
Location: Sacramento

Re: CMac,s 1971 Datsun 510

Postby Cmac » 10 Jan 2014 15:09

1987 Nissan R200 seals and Bearings thanks to Chad at Chico Nissan for ensuring they are the right bits.

1 Front seal C8189-N3100
1 Ft Ball bearing 38335-N3220 
1 rear roller bearing 38120-06P10
1 mid roller bearing 38120-1320A
2 Side roller bearing 38440-N3111
2 Side seals 38342-N3100
1 Rear cover GKT 38320-N3111
2 Axle Clips            38225-N3100 

There is a later style Axle clip that I have not found the part number for it stays on the stub axle were as the part number listed is installed in the diff. center / LSD

Cmac
Posts: 291
Joined: 26 Oct 2006 17:03
Location: Sacramento

Re: CMac,s 1971 Datsun 510

Postby Cmac » 05 Feb 2014 19:57

Small update - Differential was assembled by West coast Differentials http://www.differentials.com/

Image
Os is whats inside
Image
TSR 930 CV stub axle needs to be modified to fit in the LSD due to being designed to use S14 style stub axle. See clip retainer below.
Image
S14 stub axle C clip retainer is on the Axle and not retained in the LSD
Image

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JordanTr
Posts: 754
Joined: 20 Feb 2013 22:27
Location: Langley, BC, Canada

Re: CMac,s 1971 Datsun 510

Postby JordanTr » 05 Feb 2014 22:16

Nice diff! :D

Really top notch work.
Last edited by JordanTr on 06 Feb 2014 07:51, edited 1 time in total.
Jordan | '72 2 door KA project | '94 240sx RB26DETT | '97 Silvia RB25DET | '90 Audi 90 Quattro 20V (DD)

tr6racer21
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Re: CMac,s 1971 Datsun 510

Postby tr6racer21 » 06 Feb 2014 06:04

Cmac,

Very nice build

Wondering if you could provide a little more detail on the Mazda filler neck setup that you used. vehicle model, installation details and needed modification to stock parts. Curious as to the vented cap recommendation as well, my car still has the vent that travels to the drivers side strut tower? uses a non-vent cap.

The main reason I am interested in this mod is I am getting fumes in the cabin after hard left handers with over half a tank. I have inspected all connections and hoses, and taken things apart at least (3) times to try to alleviate this problem. Your filler neck option may solve my problem.

Thanks

Cmac
Posts: 291
Joined: 26 Oct 2006 17:03
Location: Sacramento

Re: CMac,s 1971 Datsun 510

Postby Cmac » 06 Feb 2014 07:30

Braided fuel lines are known to gas over time the newer kevlar lines are said to be better. it seems to work in my case I am going to re due these lines in 3/8 stainless when I get a chance just to be sure. Theres nothing worse that putting your head inside a nicely built car of any kind and smelling exhaust and or fuel.

Filler neck and rubber are from a Mazda MX6 1986-1997 you will need the rubber hose / tank attachment and gas cap from this car as well. I am running a cap form a Nissan 240sx or is it a 300zx I cant remember that part.
Rubber fuel resistant gasket I had cut 1/4 inch thick used to try to keep fuel and smell out.
Image
This is the rubber filler neck to tank you will get with the MX6 fuel neck
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Note the issue I created the return vent as a bend in it creating a trap like you may see in you kitchen sink. not so good.
Image
240sx Fuel Cap
Image
3/16 alum plate cut and shaped like factory unit but fits over new filler neck
Image

tr6racer21
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Re: CMac,s 1971 Datsun 510

Postby tr6racer21 » 06 Feb 2014 20:33

Thanks for the pics and info!


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