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Home Built Z 'full Video Build'


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#181 HomeBuiltByJeff

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Posted 13 April 2018 - 09:08 PM

This week I learned a lot more about engine rebuilding and I lapped the valves. I then needed to work out my engines compression which meant CC'ing the combustion chambers.
 
 
 


#182 HomeBuiltByJeff

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Posted 21 April 2018 - 05:48 AM

This week I have got myself some extra valves to replace the dodgy ones I had previously, so I get them lapped to fit and then move on to more body work.
 


#183 blu260z

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Posted 21 April 2018 - 09:53 PM

Hey Jeff not sure how you tested how the valves seal but I have been shown a really easy way. If you flip your head over and drop both exhaust and intake valves in then fill the chamber up with water enough to cover the valves. Grab your air compressor nossle and give it a light blast with air through the exhaust or intake port. Try not to cover 2 much of the port with your hands or the nossle as this will force the valve up rather than letting showing where a small leak is past the valve and seat. Youtube has a few good vids of how this is done.

Hope this helps
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#184 HomeBuiltByJeff

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Posted 22 April 2018 - 06:46 AM

I was shown to do it with bearing blue around the edge of the valve and then drop it in. If it leaves a even contact patch all around you know you have a good seal, but I like the sound of that way. If I get a chance I will give it a try.


Edited by HomeBuiltByJeff, 22 April 2018 - 06:46 AM.

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#185 HomeBuiltByJeff

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Posted 27 April 2018 - 08:59 PM

This week I have chosen to have a big swing at getting the bodywork on the Z finished.
 

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#186 HomeBuiltByJeff

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Posted 05 May 2018 - 09:56 AM

This week it was time to start cleaning up the engine block and paint it up ready for the rebuild.
 

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#187 CBR Jeff

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Posted 08 May 2018 - 03:43 PM

 

This week I have chosen to have a big swing at getting the bodywork on the Z finished.
 
 

 

 

I know the feeling Jeff, its a long process. You put it on you rub it off then you do it again then move onto the next bit..............

 

Jeff


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#188 kamarchi

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Posted 08 May 2018 - 10:21 PM

LOL - i wish i were at that stage :-)



#189 HomeBuiltByJeff

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Posted 11 May 2018 - 09:41 PM

This week I continued the body work on my Z and painted the valve cover.

 


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#190 1600dave

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Posted 11 May 2018 - 11:16 PM

Tip for next time - BBQ your rocker cover !

 

Seriously though, the paint can recommends a temp for baking, my old faithful 6 burner BBQ with roasting hood down maintained the perfect temp with just one burner at one end on full. Set up a few bricks or similar at the opposite end of the BBQ, throw 3 coats of paint on, sit the cover on the bricks in the BBQ and bake for the recommended time and you'll get beautiful tight wrinkles. Personal preference and all that, but I prefer the baked finish to air drying alone.

 

Also works in the kitchen oven, only did that once while the wife was away for the weekend, haven't been game to try it again. Especially after the great "valve guide installation" oven incident of 2010......

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Edited by 1600dave, 11 May 2018 - 11:24 PM.

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#191 Cozza

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Posted 11 May 2018 - 11:39 PM

Nice finish Dave.
Is the “Great Valve Guide Installation” incident a story you can tell us about or taboo? 😆

#192 HomeBuiltByJeff

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Posted 12 May 2018 - 07:48 AM

I did think about heating it up, but the can said that if you heat it you get bigger wrinkles, and I wanted them tighter. I may try something like that next time, although not in the oven. Mrs Jeff would not be too happy about that ;) 



#193 chris240

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Posted 12 May 2018 - 07:54 AM

Nice finish Dave.
Is the “Great Valve Guide Installation” incident a story you can tell us about or taboo?


Lol, I could imagine a BBQ at Daves place... sirloins, 4 quater chops, salad, L28 rocker, sausages.....
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#194 TOO60Z

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Posted 12 May 2018 - 08:34 AM

Use the power of the sun. You get a more of a “natural” wrinkle.
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#195 gav240z

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Posted 12 May 2018 - 11:44 AM

I may try something like that next time, although not in the oven. Mrs Jeff would not be too happy about that ;)


Think about the blooper reel potential!

As I said on the YouTube comments I used a heat gun from about 30 cms out and it worked really well. Good consistent wrinkles is what you want.

Although sadly sanding down the letters left a dullish grey over my red paint that wouldn't come off. So I have to mask it again and repaint a couple of coats to give it that nice deep redish look again.

Only thing I'm not sure about is how durable the paint is and how long it will look good for. I would like to get a powder coating set up and second hand electric oven in future.

I had my brake calipers powdercoated recently and that stuff seems very durable.
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#196 1600dave

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Posted 12 May 2018 - 12:07 PM

Is the “Great Valve Guide Installation” incident a story you can tell us about or taboo?

 

I thought I'd get the old guides out easier by heating the head in the oven while the wife was out. Head wasn't as clean as I thought. Engine oil in an oven makes a bad smell in the kitchen. Bad smell hangs around a long time, long enough for wife to get home. Bad smell in the Kitchen makes wife unhappy, Unhappy wife makes Dave unhappy.

 

I did think about heating it up, but the can said that if you heat it you get bigger wrinkles, and I wanted them tighter. 

 

My experience is the opposite. First one I did I air dried and wasn;t happy with the appearance so tried again by baking it and wrinkles were much tighter. 

 

 

 


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#197 1600dave

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Posted 12 May 2018 - 12:08 PM

Only thing I'm not sure about is how durable the paint is and how long it will look good for.

 

 

Did the cover on my race engine in 2010, its still looking as good as the day I did it (well, except for a liberal coating of oil since Bathurst last November...) Also did the rocker cover on my MX5 in wrinkle red 2-3 years ago and its still looking great.

 

red.jpg

 

Lol, I could imagine a BBQ at Daves place... sirloins, 4 quater chops, salad, L28 rocker, sausages.....

 

Don't forget Possum. We had to forego BBQ's for a few months last spring because these guys (there's a mother and baby) took up residence in the BBQ and the wife / daughter didn't want to evict them from their home

 

possum.jpg  


Edited by 1600dave, 12 May 2018 - 12:20 PM.

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#198 1600dave

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Posted 12 May 2018 - 12:12 PM

And Jeff, was watching some of your other vids last night and realised I'd seen some a few years back (in your pre-datsun era) when researching tube benders ! 


Edited by 1600dave, 12 May 2018 - 12:19 PM.

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#199 Cozza

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Posted 12 May 2018 - 12:45 PM

Dave, you’ve probably got a couple red backs round your gas bottle too. That’s where they like to be at my place.

I can imagine your wife’s reaction with engine oil smoke in the kitchen. 😂
Probably wouldn’t have been funny at the time though.

We did a kitchen Reno a few years back so I put our old oven in the shed. Its not quite as big as a but bbq keeps me out of trouble.

#200 HomeBuiltByJeff

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Posted 18 May 2018 - 07:42 PM

I wasn't happy with the results of my compression calculations previously, so I have had the head shaved again and it is time to recalculate.

 






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