What did you do on your 510 today?

General Discussion about the Datsun PL510
edekalil
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Joined: 18 Mar 2013 06:42

Re: What did you do on your 510 today?

Post by edekalil » 25 Sep 2020 06:13

Well I pulled the head on the Goon to find out the no compression issue on the #3 cylinder.

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A burnt valve so off to the machine shop.

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Byron510
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Re: What did you do on your 510 today?

Post by Byron510 » 25 Sep 2020 06:26

Yep, that’s do it!

It must have been an issue for some time to have cut that far through the valve.
The balance seat is likely also damaged beyond repair. Been a while since I’ve seen a burnt valve, thanks for sharing the photos.
It should be a pretty straight forward repair, aside from the rocker arms, everything else in the head is off the shelf parts and availability is still there.

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

edekalil
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Re: What did you do on your 510 today?

Post by edekalil » 26 Sep 2020 07:44

Yes I had one burn on another motor way back it had two spots burnt and I was surprised it didn't break off and damage the cylinder. I cleaned it up to put it in the car when I go back to work next Tuesday. I'll find a good machine shop to bring it. I had rebuilt it way back do it has hardened seats in it. I probably took it out of the Goon way back because of the issue and did not remember it when I put it back in a few years ago but soon it will be better. Mike said it probably was because I didn't have it adjusted correctly. Any way the motor didn't have but about 5 thousand miles on it when I took it out so it will be good to have it fixed and running good in the Goon.

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edekalil
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Re: What did you do on your 510 today?

Post by edekalil » 08 Oct 2020 18:55

Got the L16 head in a machine shop now and got to get a head gasket set next.

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bertvorgon
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Re: What did you do on your 510 today?

Post by bertvorgon » 11 Oct 2020 09:47

Morning World!

Not much exciting to report as the season winds down. We sure lucked out on that drive, as even the passes are now expecting some snow flurries.

Finally got my new exhaust pyro which I will try to get in place quite soon, so as to drive the car one more time before the insurance expires on the 22nd.

The last one lasted 19 years, crazy when I think of all the weird fuel combo's I have tried that are very corrosive. You can see how it finally fried the wires at the junction point.

The new one has a "packed" magnesium oxide filler to separate the two wires. The exposed tip makes for instantaneous reading of temp, which for me is important, as I hit the throttle on long uphill climbs, where temps can touch 1,600 - 1,700F.

If ever there was a testament to using Never Seize, this would be it. After 19 years the 1/8" NPT fitting came out of the exhaust manifold quite easily.

I spent a few days in the mountains camping and stopped in Hope to walk around the park in the core of town. The world famous chainsaw carvings are incredible, with master carver Ryan Villiers latest work..RAMBO..on a pedestal. For you none locals, Rambo was filmed in and around Hope,B.C..
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"Racing makes heroin addiction look like a vague wish for something salty" - Peter Egan

Keith Law
1973 2Door Slalom/hill climb/road race / canyon carver /Giant Killer 510
1968 Vintage 3HP Mini Bike
1971 Vintage 13' BOLER trailer

edekalil
Posts: 61
Joined: 18 Mar 2013 06:42

Re: What did you do on your 510 today?

Post by edekalil » 13 Oct 2020 19:04

Got the head and intake/exhaust gaskets for the Goon. Now just waiting on the machine shop with the head.

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Also got a steering wheel hub to work on a 5 hole steering wheel I've had from way back.

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edekalil
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Re: What did you do on your 510 today?

Post by edekalil » 18 Oct 2020 08:02

The goon head will be ready this week so I'll pick it up next week when I go to work in New Orleans. Then get it on the goon shortly after that.

edekalil
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Joined: 18 Mar 2013 06:42

Re: What did you do on your 510 today?

Post by edekalil » 18 Oct 2020 08:02

The goon head will be ready this week so I'll pick it up next week when I go to work in New Orleans. Then get it on the goon shortly after that.

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cartel
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Re: What did you do on your 510 today?

Post by cartel » 18 Oct 2020 11:32

crimping Brown and Miller rad hoses and fuel lines yesterday. More pics in build thread
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Mike Gibson
Datsun: 71 dime; 73 Z ; GT3 240
Other: 65 + 67 Mustang ; 03 murcie

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bertvorgon
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Re: What did you do on your 510 today?

Post by bertvorgon » 22 Oct 2020 11:15

Sorry, no pictures today. Yesterday I fired the car up and headed to Specialty for my season ending oil change, nut and bolt check, misc other issues.

Nothing was falling off so that was good, I did get that new pryo tip installed, works like a charm, maybe pointed out that my old one was getting tired before failure.

I did see that my aircraft brake hoses are cracked, only took 36 years to fatigue. Will change those out over the winter.

There was some oil on the bottom of my compressor housing, suspecting that the seal is starting to go. I will pull hose from turbo intake and check for excessive play. Again, this permutation of turbo has been in service for a long, LONG time. Based I think on my compressor map, it has been spinning at 80,000 RPM for a good chunk of it's life too.

I have to rumble around in my basement, as I think I have a brand new turbo, set up just like this one, larger compressor housing and mid size turbine housing. The larger compressor housing sure dropped the intake air temp, dropping it from the area of 350F. down to 170'ish (every 10 degree drop is equal to 1 HP) on full throttle, sustained load...like at Knox Mountain hillclimb. I do have a larger turbine housing, but, at this point, like I need more top end power.

My BPR9ES plugs looked good after the last drive, no aluminium on the tip or insulator. The center electrode was really rounded, about normal for almost 1,000 miles of heat and boost. I gap mine at .028" and in talking to Andy, he gaps the Miata at .021-.022".

I had noticed my radiator water was low, so checked things out, seems for whatever reason upon cooling, it does not suck the fluid back in. I checked the over-flow hose for cracks or splits..NADA. Made sure rad cap and surface were clean. I siphoned the fluid out of my catch tank, filtered it and poured it back into rad....the same volume that was missing in the rad. I will just have to check rad more often and siphon and top again, so as to not blow cooling fluid all over the inside of my right side strut. Over flow tank is mounted behind passenger side strut.

Tires are hanging in, rears are showing the wear as usual, good for another summer though.

My engine ran for 22.6 hours this season, doing some 1,200 miles over the season. The 2 long drives we did were awesome, great company and some cool roads.

One thing pointed out again, with Jon's flat tire, is to make sure we all have the gear to deal with a flat, other than a catastrophic sidewall type of flat. Turned out I did not have the glue to go with the tire plug...seems that I left that in the Tracker after our last 4 x 4 trip. We should have a quick online meeting to see who has what before a drive, flat repair, tools, etc.

I do hope in the spring that I can hook up with Byron and get my headlight upgrade done, that could open up a different world for some drives that start late and maybe finish after the sun has gone down.

No doubt, at least for me, this Covid nightmare put a damper on a few events to attend, lets all hope we see some relief next season.

Thanks to all that came out for the drives, that was fun.
"Racing makes heroin addiction look like a vague wish for something salty" - Peter Egan

Keith Law
1973 2Door Slalom/hill climb/road race / canyon carver /Giant Killer 510
1968 Vintage 3HP Mini Bike
1971 Vintage 13' BOLER trailer

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