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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Broken 4AGZE pistons part 3, side by side view of cross sections
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Fri, 14 November 2003 14:19
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Hey all,
installment 3 (i think). here are some pics comparing the cross-sections of Feral4mr2's piston on the left (deep dish), and MrShins piston on the right (shallower dish). the valve cuts on both pistons are the same depth from the flat edges of the piston crown.
the skirts of the pistons look to be almost identical, as does the amount of meat around the bottom edge of the oil control ring. the oil holes also appear to be placed in the same way on both. the gudgeon pin area seems to be identical.
what is different, apart from the obvious difference in dish, is the ribbed bit underneath the piston on the left. minimum crown thickness between the ribs is 6.8mm.
the piston on the right has no ribbing, and the minimum crown thickness is 7.4mm
what was left of MrShins piston weighed 298.12g, and the gudgeon pin weighed 97.68g. i did not have a chance to weigh Feral4mr2's piston before cutting.
the pic on the left is at a slight angle, so it looks like the skirt tapers.. but it doesn't really.. just a shitty pic 
[Updated on: Fri, 14 November 2003 14:22]
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I supported Toymods
Location:
Perth, Western Australia
Registered:
December 2002
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Re: Broken 4AGZE pistons part 3, side by side view of cross sections
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Sat, 15 November 2003 03:52
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Stew,
Can you specify the exact model of both piston's when referencing for easier infomation gathering please?
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: Broken 4AGZE pistons part 3, side by side view of cross sections
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Sat, 15 November 2003 06:00
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Piston on left = AFM type GZE (early model, 8.0:1 AW11 type)
Piston on right = later MAP tuype GZE (8.9:1 type)
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Broken 4AGZE pistons part 3, side by side view of cross sections
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Sat, 15 November 2003 07:47
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I love that I can still see the conrod chew marks on the bottom of my piston 
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Location:
Yowie Bay, Sydney
Registered:
June 2002
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Re: Broken 4AGZE pistons part 3, side by side view of cross sections
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Sun, 16 November 2003 07:45
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would u do a 1g-gte piston? i'm guna have 6 floating around soon...
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Broken 4AGZE pistons part 3, side by side view of cross sections
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Sun, 16 November 2003 07:56
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| mrshin wrote on Sat, 15 November 2003 18:47 |
I love that I can still see the conrod chew marks on the bottom of my piston
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it did a pretty good job man, lovely crank profiled pistons!
Dabbid: sure why not  will be interesting to have a bit of a collection. email me at stewie@unsw.edu.au
Cya, Stewart
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Location:
Canberra
Registered:
May 2002
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Re: Broken 4AGZE pistons part 3, side by side view of cross sections
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Sun, 16 November 2003 10:07
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Thats a cool picture! I've always been interested in seeing a cross section like this between the two.
Thanks!
Phil
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Location:
Perth
Registered:
September 2002
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Re: Broken 4AGZE pistons part 3, side by side view of cross sections
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Sun, 16 November 2003 13:23
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Again, good work dude 
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Broken 4AGZE pistons part 3, side by side view of cross sections
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Mon, 17 November 2003 11:10
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Maybe I should take some shots of the REST of the engine, ey?
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Broken 4AGZE pistons part 3, side by side view of cross sections
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Mon, 17 November 2003 11:11
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yes!
always amusing to see pics of chewed engines
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Broken 4AGZE pistons part 3, side by side view of cross sections
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Tue, 18 November 2003 01:59
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definitely!! under the gudgeon pins was made pretty flat by the conter weights!! lucky they didn't catch!
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