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Parts truck build/One wasn't enough


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#21 flatcat19

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Posted 21 May 2017 - 03:33 PM

Did you block the timing chain tensioner before removing the cam gear?


Valve lash: .010/intake .012/exhaust
Adjusters are on the passenger side of head. 14 and 17mm wrenches to adjust.

You can't hang if your nuts haven't dropped...it's physics


#22 flatcat19

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Posted 21 May 2017 - 03:35 PM

Just noticed....you didn't roll motor to TDC before taking this apart.

Tsk, tsk. Blocking the timing chain doesn't matter now as the timing cover will still need to come off now.

You can't hang if your nuts haven't dropped...it's physics


#23 captain720

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Posted 21 May 2017 - 03:39 PM

Thanks.

Do you use a razor blade to clean off old head gasket?

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#24 flatcat19

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Posted 21 May 2017 - 03:41 PM

Thanks.
Do you use a razor blade to clean off old head gasket?


Razor blade, WD-40, and green scratchy pads.

You can't hang if your nuts haven't dropped...it's physics


#25 captain720

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Posted 21 May 2017 - 03:55 PM

What happens when you take the valve cover off without reaching TDC? I thought I got there, I looked at the timing mark. Is the timing mark off?

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#26 flatcat19

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Posted 21 May 2017 - 03:59 PM

Look at your first piston. That should be flush with the engine deck.

Unless you marked the chain and gear you now need to roll the motor over to TDC.

Rolling the L will be impossible as the chain tensioner is now in the way grabbing the chain.

You can't hang if your nuts haven't dropped...it's physics


#27 captain720

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Posted 21 May 2017 - 04:00 PM

I marked the gear and the chain with a bright yellow marker so I can put the gear back in the exact same place.

1986 and 0 Nissan 720 kc with a 1984 Z24 (third engines the charm?) http://community.rat...y-first-pickup/
1986 and 0 Nissan 720 kc 2wd http://community.ratsun.net/topic/71766-one-wasnt-enough/

 

 

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#28 flatcat19

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Posted 21 May 2017 - 04:04 PM

Do you remember which dowel hole the gear was on?

You can't hang if your nuts haven't dropped...it's physics


#29 captain720

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Posted 21 May 2017 - 04:09 PM

Yup

1986 and 0 Nissan 720 kc with a 1984 Z24 (third engines the charm?) http://community.rat...y-first-pickup/
1986 and 0 Nissan 720 kc 2wd http://community.ratsun.net/topic/71766-one-wasnt-enough/

 

 

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#30 captain720

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Posted 21 May 2017 - 05:08 PM

So I'm safe?

Do the heads usually have to be shaved after a blown head gasket?

1986 and 0 Nissan 720 kc with a 1984 Z24 (third engines the charm?) http://community.rat...y-first-pickup/
1986 and 0 Nissan 720 kc 2wd http://community.ratsun.net/topic/71766-one-wasnt-enough/

 

 

Datsun=Project


#31 wayno

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Posted 21 May 2017 - 05:12 PM

So I'm safe?

Do the heads usually have to be shaved after a blown head gasket?

 

Only if they are warped.


 

 


#32 captain720

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Posted 21 May 2017 - 07:46 PM

I held a level up to the head and it did not appear to be warped at all.

 

So it sounds like I do not have to take the whole front off?

 

Are these little lumpy dimple indent things normal in the pistons?

 

IMG_20170521_163651508_zpsbtsrqcdm.jpg


1986 and 0 Nissan 720 kc with a 1984 Z24 (third engines the charm?) http://community.rat...y-first-pickup/
1986 and 0 Nissan 720 kc 2wd http://community.ratsun.net/topic/71766-one-wasnt-enough/

 

 

Datsun=Project


#33 flatcat19

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Posted 21 May 2017 - 08:01 PM

Valve reliefs.



My steps given earlier about valve adjustments are not accurate. I did not realize this was a Z motor. I have no info to offer. Lol.

You can't hang if your nuts haven't dropped...it's physics


#34 captain720

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Posted 22 May 2017 - 02:08 PM

Had the machine shop check the head for warping (it was free, so why not?). And it is officially warpless.


1986 and 0 Nissan 720 kc with a 1984 Z24 (third engines the charm?) http://community.rat...y-first-pickup/
1986 and 0 Nissan 720 kc 2wd http://community.ratsun.net/topic/71766-one-wasnt-enough/

 

 

Datsun=Project


#35 captain720

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Posted 07 July 2017 - 08:49 PM

So I have a real problem here, I can not get the bolt in the timing gear to line up when the pin is in. It is just a tiny bit off. Is there a trick for this? Really in a spot here, thanks guys.


1986 and 0 Nissan 720 kc with a 1984 Z24 (third engines the charm?) http://community.rat...y-first-pickup/
1986 and 0 Nissan 720 kc 2wd http://community.ratsun.net/topic/71766-one-wasnt-enough/

 

 

Datsun=Project


#36 Lockleaf

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Posted 07 July 2017 - 09:24 PM

Screwdriver through the gear lever off a solid part of the head

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#37 wayno

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Posted 07 July 2017 - 09:40 PM

Yea I am kinda wondering if you had the timing chain blocked when the head was removed, the chain cannot go slack ever, if it does go slack then the front timing cover has to be removed to put it all back together as the timing chain tensioner likely is out of its hole.


 

 


#38 captain720

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Posted 23 October 2017 - 07:30 AM

So it turns out, I did not let the tensioner go slack (kept the fancy blue wedge in the whole time). It is all back together again and happy. When we it back to gather it started right up and runs perfectly. Now to just fix that little tiny intake mani gasket leak.............

 

 

also these tires should fit right?

lhttps://wenatchee.cr...6356940365.html


1986 and 0 Nissan 720 kc with a 1984 Z24 (third engines the charm?) http://community.rat...y-first-pickup/
1986 and 0 Nissan 720 kc 2wd http://community.ratsun.net/topic/71766-one-wasnt-enough/

 

 

Datsun=Project


#39 captain720

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Posted 23 October 2017 - 09:12 AM

She is wearing some wasted 215/70R15s right now, so I am going to take advantage of the fall tire sales. Would it perform better on stock 185/70R14s?


1986 and 0 Nissan 720 kc with a 1984 Z24 (third engines the charm?) http://community.rat...y-first-pickup/
1986 and 0 Nissan 720 kc 2wd http://community.ratsun.net/topic/71766-one-wasnt-enough/

 

 

Datsun=Project


#40 captain720

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Posted 23 October 2017 - 08:42 PM

Got that intake manifold leak fixed so now it doesn't puke coolant everywhere. Tomorrow, insurance and tires.$$$$$$$

1986 and 0 Nissan 720 kc with a 1984 Z24 (third engines the charm?) http://community.rat...y-first-pickup/
1986 and 0 Nissan 720 kc 2wd http://community.ratsun.net/topic/71766-one-wasnt-enough/

 

 

Datsun=Project