| Author | Topic |
|---|
Location:
N.S.W
Registered:
May 2002
|
|
Bigport head to highcomp gze bottom end secondary external oil return?
|
Tue, 25 May 2004 10:35
|
 |
Hi guys,
Almost finished my motor. Just wondering about the secondary external oil return that use to go from the small port head to the block. Since im using a bigport head now, what should I do with the hole in the block. I was just going to block it. Do you think this will be ok or what? I though since its blocked the pressure might blow it out.
Thanks.
|
|
|
Toymods Board Member
I supported Toymods
Location:
Turramurra, Sydney.
Registered:
May 2002
|
|
Re: Bigport head to highcomp gze bottom end secondary external oil return?
|
Tue, 25 May 2004 10:40
|
|
Nah she'll be right, any pressure in there should be venting out the breather on the cam cover.
I've got the same deal with mine, & I've blocked it off with a nice big plug in a short bit of hose. It hardly even needs hose clamps, but I'll prolly chuck some on for good measure.
|
|
|
Banned by his request
Location:
moved to tamworth
Registered:
July 2002
|
|
Re: Bigport head to highcomp gze bottom end secondary external oil return?
|
Tue, 25 May 2004 11:00
|
|
i drilled and taped my bigport head ! then fitted a dash to npt fitting and welded a dash bung onto block tube and ran a braided line.
simple
mick
|
|
|
Location:
N.S.W
Registered:
May 2002
|
|
Re: Bigport head to highcomp gze bottom end secondary external oil return?
|
Tue, 25 May 2004 11:17
|
|
yeh thanks guys. I thought since the breather was there it would be right. Just had to make sure.
Thanks again.
|
|
|
Banned by his request
Location:
moved to tamworth
Registered:
July 2002
|
|
Re: Bigport head to highcomp gze bottom end secondary external oil return?
|
Tue, 25 May 2004 22:02
|
|
god make sure you use a catch-can then, otherwise you will pump oil into the intake which leads to detenation as the oil knocks the octane rating way down.
mick
|
|
|
Location:
N.S.W
Registered:
May 2002
|
|
Re: Bigport head to highcomp gze bottom end secondary external oil return?
|
Wed, 26 May 2004 01:55
|
|
|
Ive added it to the list!
|
|
|
Location:
up yours!
Registered:
May 2002
|
|
Re: Bigport head to highcomp gze bottom end secondary external oil return?
|
Wed, 26 May 2004 02:54
|
|
If you wanted to, you could hook up a catch can to both the head and the old oil return.
4a's are famous for the blow-by, so all the help it can get to remove the pressure is great.
With high revs and some blow-by the oil has a bit of a hard time trying to get back down to the sump while the pressure is heading up to go out the breather in the rocker cover.
Food for thought..
Yogi
|
|
|
