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Location:
Kilsyth, Melbourne
Registered:
September 2004
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how to build a hybrid 2tg
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Mon, 13 December 2004 08:08
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sorry every 1 if there a alot of threads on this but i searched and couldn't get wot i wanted. i want to know wot is exactly involved to make a 2tg 3t hybrid. is it as simple as gettin a 3t block crank and pistons and boltin on the 2tg head or is it a little more complicated than that??
Cheers Calvin
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Location:
Tamworth
Registered:
August 2004
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Re: how to build a hybrid 2tg
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Mon, 13 December 2004 08:21
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hmmm, i am interested in knowing about this aswell....
sorry i cant help
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Location:
brisbane
Registered:
October 2004
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Location:
Melbourne
Registered:
October 2003
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Re: how to build a hybrid 2tg
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Mon, 13 December 2004 08:46
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I'm in the process of doing this. For starters i'll assume you've got all the bits you need to make a 2t into a 2tg
(heads, timing cover, cogs etc)
I had a blown 2t-g, all i did was.
Get a stock 3t crank. Fits straight in if you have a late model
2t-g. If you have a standard 2t block you are converting
you will need to use a die grinder to clearnace the block.
Otherwise just get a 3t block. The 2t/3t rods are the same
length so they are not an issue. Oviously the 2t-g rods are
stronger so use them if you have them.
Since they never made a 3t-g they never made the pistons
to clear the valves. So you will have to buy stock 3t pistons
and get the valve reliefs flycut, making your own 3t-g pistons.
Use 2t pistons as a guide if unsure.. (or measure) (check your cam specs too)
The 3t pistons have a lower pin height, if you used 2t pistons
they would pop out the top of the block with the 3t crank!
Apart from that that's it!
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Location:
Kilsyth, Melbourne
Registered:
September 2004
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Location:
brisbane
Registered:
October 2004
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Location:
Kilsyth, Melbourne
Registered:
September 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 01:10
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anyone else??? i thought there would b way more info for these motors seein as alot of people hav them 
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Location:
Melbourne
Registered:
November 2003
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Location:
Kilsyth, Melbourne
Registered:
September 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 02:29
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great thanx alot
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Location:
Melbourne
Registered:
October 2003
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 02:46
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The only thing about the wiesco pistons are that they are expensive. Flycutting is approx $15 a piston as a baseline,
possibly less. + Stock 3t pistons is fairly cheap.
Just make sure if you use a non 2t-g block you rotate
the non used cam bearing slighly to block their oil feed holes.
About the 3t-gte pistons, they would work, but would have very low comp. I can't remember what it was but it was low.
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Location:
Kilsyth, Melbourne
Registered:
September 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 05:59
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so all i need to do is get my 2tg head and bolt it to the 3t block with the 3t crank and pistons????
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Location:
Castle Hill, Sydney
Registered:
February 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 06:38
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so all i need to do is get my 2tg head and bolt it to the 3t block with the 3t crank and pistons????
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......no
i built one of these engines and found every single bit of information i needed for it from this forum, so its all there somewhere, just look for it!
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Location:
Kilsyth, Melbourne
Registered:
September 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 06:42
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yeh i hav searched and i can hardly find anything i just want a rundown of all the things i need to do and get. i have a full 2tg and a 3t so can sum 1 please help me 
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Location:
Devonport Tasmania
Registered:
June 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 07:33
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ok.
step one, pull apart 2tg
step two, pull apart 3t-c
step three, rebore 2tg block
step four, call sean maloney and get some pre flycut pistons for $450
Step five, fit pistons to 2tg rods.
step six, buy new bearings and fit onto 2tg rods on 3tc crank.
install and drive.
thats it in a nutshell.
of course there are areas where u need to know how to build an engine in there, but im presuming you can figure it out from there
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Location:
Kilsyth, Melbourne
Registered:
September 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 07:46
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is that boring out to 2.0 litre or sumthin? i am on a tight budget so 1.8 will hav to do so can i use the 3tc pistons and get them flycut??? thanx alot for the help
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Location:
perth
Registered:
October 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 08:07
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do ya have to get the 2t block bored if u want to use that. im looking at as little machining etc as possible. my understanding of this is that i can unbolt my 2tg pistons, crank, conrods. then after getting the 3t-c pistons fly cut i can just bolt the 3t crank, conrods pistons in. correct? will i need different bearings or will the ones out of both engines make up for the ones i need?
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Location:
Kilsyth, Melbourne
Registered:
September 2004
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Location:
Devonport Tasmania
Registered:
June 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 10:04
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depends on the minute piston to bore clearences.
etc.
if the 2tg block measures up within tolerances, and the pistons all measure aswell, then yes, just a new set of rings and a hone should suffice.
the pistons are pressed onto the rods aswell.
and with this conversion you need a complete gasket kit aswell.
the 2tg and 3tc bearing are the same, its the 3tgte ones that are different.
and seeing as u are using the 2tg rods, use 2tg bearings.
use new bearings, not old ones.
use new rings not old ones.
for god sake please dont do dodgies.
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Location:
Kilsyth, Melbourne
Registered:
September 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 10:31
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| pheonix83 wrote on Tue, 14 December 2004 21:04 |
depends on the minute piston to bore clearences.
etc.
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wot do u mean by minute piston to bore clearances???????
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Location:
Devonport Tasmania
Registered:
June 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 12:09
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ok, your bore can wear so much before its considered too much for use with the std piston, so then it needs a rebore and new pistons.
i cant remember the exact tolerances, but any good engine shop should know
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Location:
Kilsyth, Melbourne
Registered:
September 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 12:14
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so should i measure the diameter of my bore to see if it needs reboring? do u know wot it should be?
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Location:
Devonport Tasmania
Registered:
June 2004
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Re: how to build a hybrid 2tg
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Tue, 14 December 2004 22:32
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mate, if you are asking all these questions then you prolly dont know enough about engines to do this rebuild yourself, i would consult a professional in this case.
as there is too much room for stuff up if not built correctly
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Location:
Kilsyth, Melbourne
Registered:
September 2004
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