N/A FJ20 Build

New posts disabled. Archived technical discussion about the Datsun PL510
User avatar
defdes
Supporter
Posts: 4958
Joined: 12 May 2005 14:45
Location: Vermont

Re: N/A FJ20 Build

Postby defdes » 02 Jan 2014 16:34

Spent most of the day trying to figure out why I had no spark...looks like the crank sensor has up and died on me.

User avatar
defdes
Supporter
Posts: 4958
Joined: 12 May 2005 14:45
Location: Vermont

Re: N/A FJ20 Build

Postby defdes » 17 Jan 2014 18:36

Byron wins! Detonation it was.
It turns out that when I mounted the 60 tooth sender on the balancer that I put the sensor 1 1/2 teeth off thereby retarding the ignition timing. When I set my timing at 34 (already about 6* too advanced for the motor) I was probably running closer to 42*. Ouch. I am happy that the results were not a lot worse. Got it all dialed in right now and it purrs like a happy cat.

Anyway, on to the next issue. Does anyone know anything about these front struts? I searched Nissan Comp and the web and found nothing. Inserts are way too soft and I wanted to order some others.
Part # 54303 P6500
1 5 20
Tokico.jpg
Tokico.jpg (85.26 KiB) Viewed 2084 times

User avatar
okayfine
Supporter
Posts: 14114
Joined: 12 Nov 2007 23:02
Location: Newbury Park, CA

Re: N/A FJ20 Build

Postby okayfine » 17 Jan 2014 19:03

Should be the ZX strut based on the PN.
Because when you spend a silly amount of money on a silly, trivial thing that will help you not one jot, you are demonstrating that you have a soul and a heart and that you are the sort of person who has no time for Which? magazine. – Jeremy Clarkson

User avatar
defdes
Supporter
Posts: 4958
Joined: 12 May 2005 14:45
Location: Vermont

Re: N/A FJ20 Build

Postby defdes » 17 Jan 2014 19:32

Seems like you've chimed in on this before, Julian: viewtopic.php?f=29&t=23411&start=15
Thanks. My initial search did not turn that up.
Is that a Nissan strut BY Tokico, or the other way around? The strut has the Nissan emblem on it.

User avatar
okayfine
Supporter
Posts: 14114
Joined: 12 Nov 2007 23:02
Location: Newbury Park, CA

Re: N/A FJ20 Build

Postby okayfine » 17 Jan 2014 20:02

Tokico probably supplied the strut assembly to Datsun, as Hitachi supplied the diff. Couldn't imagine a different reason for Tokico to be imprinted on the housing. Good thing is there's plenty of inserts for those. I ran a set of Tokico blue/5-ways in my KA510 and liked them.
Because when you spend a silly amount of money on a silly, trivial thing that will help you not one jot, you are demonstrating that you have a soul and a heart and that you are the sort of person who has no time for Which? magazine. – Jeremy Clarkson

User avatar
defdes
Supporter
Posts: 4958
Joined: 12 May 2005 14:45
Location: Vermont

Re: N/A FJ20 Build

Postby defdes » 28 Feb 2014 16:37

This car got the short shrift when I bought my race car save for fluid changes etc.. Now that it's sold, I have some catching up to do to make it as nice as the track car.
I had a loose rear wheel which felt like bad bearings, I replaced the bearings a few (probably like 6) years ago but reused the locknut on the inside of the spindle. Thinking that was it, I got new ones and retorqued with no change. Turned out it was this:
mod-8.jpg
mod-8.jpg (90.53 KiB) Viewed 1964 times

I had bought a spare set of rear swing arms from the Eagle Rock Swap Meet for the race car, fortunately the stubs were good, so I swapped one in from there and changed the bearings(Timken RW-101).
Can these spindles be reworked to be usable again, or when they're gone they're gone?
While I was at it I ordered new Porterfield R4-S shoes (359).
New springs are Eibach 250# to match the front rate and QA1 50946
mod-4.jpg
mod-4.jpg (87.92 KiB) Viewed 1964 times

Continuing with the rear, I did Byron's solid mount trick for the rear crossmember, removed the padded washer between it and the body and inverted the cone shaped washer with the thick aluminum washer behind it. It requires enough torque to deform the top of the ball a bit to get it to touch the aluminum washer, I added another washer on top just for strength.
mod-5.jpg
mod-5.jpg (84.29 KiB) Viewed 1964 times

User avatar
defdes
Supporter
Posts: 4958
Joined: 12 May 2005 14:45
Location: Vermont

Re: N/A FJ20 Build

Postby defdes » 28 Feb 2014 16:47

Changed the mustache bar bushings:
mod-1.jpg
mod-1.jpg (88.27 KiB) Viewed 1962 times

The bottom of the car didn't used to be so dirty but I had it oil under coated when I moved to Vermont. Half of my driving is on dirt roads too...more if I can help it.


A few pages back in this post, I suffered a front sump drama and had to raise the motor about 5/8" in order to avoid that happening again. What I didn't do, was shim up the gear box so I had some really bad drive line angularity. Not any more, it's now within about 2*:
mod-6.jpg
mod-6.jpg (93.04 KiB) Viewed 1962 times


To the front, new bearings (Timken Set 6 inner and Set 2 outer for the ZX struts seal is 1188-S), KYB AGX cartridges, SP slotted rotors, Porterfield R4-S pads and Balkamp wheel studs 6412785 and steering rods from Troy.
mod-3.jpg
mod-3.jpg (100.6 KiB) Viewed 1962 times
Last edited by defdes on 28 Feb 2014 16:56, edited 1 time in total.

User avatar
defdes
Supporter
Posts: 4958
Joined: 12 May 2005 14:45
Location: Vermont

Re: N/A FJ20 Build

Postby defdes » 28 Feb 2014 16:49

I was weeping a bit of fuel in chambers of the Mikunis so I reinstalled a fuel pressure gauge to see if that was the culprit.
mod-7.jpg
mod-7.jpg (73.63 KiB) Viewed 1962 times

So here's how she sits now, just need to bleed the brakes and top off some tranny fluid that leaked out when I pulled out the drive shaft. Still have to order my new windshield from Pilkington then park it till the snow melts some time in June!
mod-9.jpg
mod-9.jpg (101.19 KiB) Viewed 1962 times

User avatar
Byron510
Moderator
Posts: 11565
Joined: 01 Jul 2003 23:06
Location: Maple Ridge, BC

Re: N/A FJ20 Build

Postby Byron510 » 02 Mar 2014 09:50

I really like your. Are and How you've built it. Glad it's getting the attention it deserves.

I've looked at damaged stub shafts in the past. Anything is fixable, but is it worth it?
I am leary about applying heat to a standard shaft, as they are heat treated. I apply a method called cold spray welding on the smaller turbocharger shafts at work (1500-5000hp range). This method has a maximum shaft temperature of 260 City. It may be employed here, and then the stub shaft bearing journal(s). An be machined and ground to the correct time size again.

The second back yard method is to use shaft and bearing locktite. My eyeballs micrometer doesn't show very much deviation in that journal. If this is true and there is a bit of the shaft that will hold the bearings concentric with each other, this locktite product will fill the voids and fully support the bearing on the shaft. It might be an option in this case.

Byron
Love people and use things,
because the opposite never works.

User avatar
defdes
Supporter
Posts: 4958
Joined: 12 May 2005 14:45
Location: Vermont

Re: N/A FJ20 Build

Postby defdes » 02 Mar 2014 18:36

Thanks Byron, for the acknowledgement and the information. The scoring on that part can be felt with your fingernail, but it is isolated, more or less, to one side. Seems like what you recommended with the loctite should work the trick. It will live to roll another day and be put in the "keeper" box tomorrow.

Three B's Racing
Supporter
Posts: 977
Joined: 03 Mar 2009 11:58
Location: New Hampshire

Re: N/A FJ20 Build

Postby Three B's Racing » 03 Mar 2014 09:30

Hey John

So you thinkin Summit Point this year? I'll be heading out May 14th at midnight driving through to Qwik510s house in MD hanging there until Thursday morning then Dave, Keith and I will head to Summit Point from there. But we will both be caravanning back Sunday morning possibly along with Chris of Maine and Dave Patten. Come on it's been many years and you haven't tagged along yet!!!

Lou
"Lastnight the wife said oh boy when your dead you can't take nothing with you but your soul oh "Think"
- John Lennon

User avatar
defdes
Supporter
Posts: 4958
Joined: 12 May 2005 14:45
Location: Vermont

Re: N/A FJ20 Build

Postby defdes » 03 Mar 2014 14:18

Nah Lou, show's aren't my thing. But I'll definitely make it over to your parts during the summer. I'll probably need to pick up some bits from Dave at some point.

I had been getting back pressure popping out of the slip joint to my header, the U-Bolts (2) weren't sealing it fully. I bought this V band clamp about 4 years ago to replace them.
mod-10.jpg
mod-10.jpg (86.05 KiB) Viewed 1866 times
mod-11.jpg
mod-11.jpg (99.63 KiB) Viewed 1866 times
mod-12.jpg
mod-12.jpg (84.58 KiB) Viewed 1866 times

Won't know until The Thaw whether it worked or not.

User avatar
defdes
Supporter
Posts: 4958
Joined: 12 May 2005 14:45
Location: Vermont

Re: N/A FJ20 Build

Postby defdes » 03 Mar 2014 18:25

Anyone know who originally made this adjustable cross member? I would imagine someone in SoCal, DP Racing, Tom Neely? I have seen only one mention of one over the years and it had to do with where to find the shims not who designed it. Shims are slid behind the inboard mounting point of the swing arm to adjust toe.
mod-13.jpg
mod-13.jpg (73.26 KiB) Viewed 1866 times
mod-14.jpg
mod-14.jpg (92.45 KiB) Viewed 1866 times

User avatar
defdes
Supporter
Posts: 4958
Joined: 12 May 2005 14:45
Location: Vermont

Re: N/A FJ20 Build

Postby defdes » 12 Mar 2014 06:06

I might be one of the only people who carry a full sized spare, but I was tired of it bumping around in the trunk, now all I need is a compact jack.
mod-16.jpg
mod-16.jpg (61.18 KiB) Viewed 1809 times
mod-15.jpg
mod-15.jpg (81.38 KiB) Viewed 1809 times

Three B's Racing
Supporter
Posts: 977
Joined: 03 Mar 2009 11:58
Location: New Hampshire

Re: N/A FJ20 Build

Postby Three B's Racing » 12 Mar 2014 12:29

defdes wrote:Nah Lou, show's aren't my thing. But I'll definitely make it over to your parts during the summer. I'll probably need to pick up some bits from Dave at some point.



What show??? It's during the Jefferson 500 race, it isn't a car show not even close just a bunch of 510 guys hanging out for a weekend of racing and camping and every little other thing that comes along.
"Lastnight the wife said oh boy when your dead you can't take nothing with you but your soul oh "Think"
- John Lennon


Return to “Technical - Archive”



Who is online

Users browsing this forum: No registered users and 3 guests