Search | Statistics | User Listing Forums
Mitsubishi 380 Forum -Exclusively for owners of the Australian 380 PS41
Mitsubishi 380 Forum -Exclusively for owners of the Australian 380 PS41 ->  380 Projects section -> 6G75 Forged engine -> View Thread

You are logged in as a guest. ( logon Only if you have registered by Email as per the instructions in the forum)

Why forge a 6G75?
[Frozen]

Jump to page : 1
Now viewing page 1 [10 messages per page]		View previous thread :: View next thread
Frozen    380 Projects section -> 6G75 Forged engineMessage format
 
Administrator
Posted 7/8/2011 19:12 (#13467)
Subject: Why forge a 6G75?



Frequent flyer Gold

Posts: 1093
10005025555
Location: An island off southern Tasmania.		These photos from another site by a user called Joey shows it all.

The stock conrods are risky above 6 psi and the pistons just fall apart unless forged.





(piston crack from edge.JPG)



(piston crack.JPG)



(con rod failed.JPG)



(damaged bottom end.JPG)



(damaged oil pan.JPG)



Attachments
----------------
Attachments piston crack from edge.JPG (99KB - 830 downloads)
Attachments piston crack.JPG (109KB - 851 downloads)
Attachments con rod failed.JPG (118KB - 755 downloads)
Attachments damaged bottom end.JPG (116KB - 857 downloads)
Attachments damaged oil pan.JPG (89KB - 756 downloads)
Top of the page Bottom of the page
Administrator
Posted 7/8/2013 10:25 (#15468 - in reply to #13467)
Subject: Re: Why forge a 6G75?



Frequent flyer Gold

Posts: 1093
10005025555
Location: An island off southern Tasmania.		The main weakness in the 6G75 is bolt stretch on the center 8 main bearing bolts.
They have been shown to stretch by several millimetres in worst cases.

You MUST replace the bolts when replacing bearings.
Top of the page Bottom of the page
wsbtt
Posted 11/8/2013 18:19 (#15473 - in reply to #15468)
Subject: Re: Why forge a 6G75?



Frequent flyer Gold

Posts: 421
1001001001005555
Location: Brisbane,qld		Ill be doing that on my 6G75 build,cheers
Top of the page Bottom of the page
Administrator
Posted 11/8/2013 21:43 (#15476 - in reply to #13467)
Subject: Re: Why forge a 6G75?



Frequent flyer Gold

Posts: 1093
10005025555
Location: An island off southern Tasmania.		The bolts used in my build require a professional install, they are 1.5mm greater diameter so need to be drilled and tapped.

Engine has to be on the bench.

only do the inner 8 bolts as there isn't enough material in the block to do the outside 8 bolts.
Top of the page Bottom of the page
wsbtt
Posted 11/8/2013 22:06 (#15478 - in reply to #15476)
Subject: Re: Why forge a 6G75?



Frequent flyer Gold

Posts: 421
1001001001005555
Location: Brisbane,qld		Thats in your forged engine, yeah?, so are the ARP anygood then?
Top of the page Bottom of the page
Administrator
Posted 12/8/2013 13:02 (#15479 - in reply to #13467)
Subject: Re: Why forge a 6G75?



Frequent flyer Gold

Posts: 1093
10005025555
Location: An island off southern Tasmania.		Here are the locations of the 8 bolts.



(6G75 bolts.JPG)



Attachments
----------------
Attachments 6G75 bolts.JPG (206KB - 1750 downloads)
Top of the page Bottom of the page
Jump to page : 1
Now viewing page 1 [10 messages per page]		Frozen
Jump to forum :
Search this forum
Printer friendly version
E-mail a link to this thread

Registered to: www.380DB.com
(Delete all cookies set by this site)