My V8 Sierra project ..... maybe I will finish this one !
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Anti roll bar touches the bellhousing when the car is on its wheels
I will have to make up a couple of spacers to drop the ARB out of the way.
On the plus side the postman has been this week
Nice new shiney set of forged pistons
A new set of these forged steel rods
Shortened and reconditioned prop with new end to fit T56 gearbox.
Looking at the prop angles the gearbox needs to come up a bit at the rear which will mean a bit more fettling of the transmission tunnel at a later date.
Mark
I will have to make up a couple of spacers to drop the ARB out of the way.
On the plus side the postman has been this week
Nice new shiney set of forged pistons
A new set of these forged steel rods
Shortened and reconditioned prop with new end to fit T56 gearbox.
Looking at the prop angles the gearbox needs to come up a bit at the rear which will mean a bit more fettling of the transmission tunnel at a later date.
Mark
302 V8 Sierra 5 door sleeper under way
Tiny update.
I tried to cut corners by ordering a set of Flowtech headers from Real Steel
They were very badly made and the ports were up to 1/4" out of alignment with the ports in my Edelbrock heads so I sent them back.
Ralph 85 had already made me these
I made up a tool to get 1 5/8" tube from round to square
Initial mock up with no welding
After I had a go at Tig welding the stubs in they bent like bananas
So I spent some time getting them straight in a vice and then skimmed them on a milling machine leaving an upstand around the ports to help get a good seal.
These bits are from the US
The little triangle bits help to smooth the flow into the collectors.
Because the clearance is so tight on the bolts I turned down some cap head screws on a lathe to help.
A box of goodies from OJZ engineering
I'm a real novice when it comes to Tig welding but Ill have to learn on the job.
New EFI intake showed up today as well
Mark
I tried to cut corners by ordering a set of Flowtech headers from Real Steel
They were very badly made and the ports were up to 1/4" out of alignment with the ports in my Edelbrock heads so I sent them back.
Ralph 85 had already made me these
I made up a tool to get 1 5/8" tube from round to square
Initial mock up with no welding
After I had a go at Tig welding the stubs in they bent like bananas
So I spent some time getting them straight in a vice and then skimmed them on a milling machine leaving an upstand around the ports to help get a good seal.
These bits are from the US
The little triangle bits help to smooth the flow into the collectors.
Because the clearance is so tight on the bolts I turned down some cap head screws on a lathe to help.
A box of goodies from OJZ engineering
I'm a real novice when it comes to Tig welding but Ill have to learn on the job.
New EFI intake showed up today as well
Mark
302 V8 Sierra 5 door sleeper under way
I used these serrated washers under my cap screws:
http://www.calebcomp.co.uk/products/hea ... shers.html
http://www.calebcomp.co.uk/products/hea ... shers.html
The smaller diameter on the round bit fits inside the pipe to keep it round, both the square part and the round part have a 12mm reamed hole and the 12mm sliver steel fits both parts and keeps it all square.demo2 wrote:That square to round tool does a neat job, how does it compress together ?
The firts time I tried it the square part on the tool was the exact finished size of the pipe and it stretched the pipe too much making the square too big.
I had to machine the square smaller than needed to get the right size.
Then I placed a bit of tube in the former and squashed it all together in a vice, it was not perfect so I left it together and tapped the square in closer with a copper mallet.
Cheers
Mark
302 V8 Sierra 5 door sleeper under way
They look like a good ideaEliot wrote:I used these serrated washers under my cap screws:
http://www.calebcomp.co.uk/products/hea ... shers.html
Link aded to favorites.
Mark
302 V8 Sierra 5 door sleeper under way
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- Forum Contributor
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- Location: Northern Ireland
I was under the impression that stainless needed purging full stop ?stevieturbo wrote:If you are TIG welding, make sure you backpurge so the weld doesnt intrude into the pipe.
If it was me though, I'd just MIG. It's neat, quick and easy, and you dont need to worry about backpurging.
When I picked up the new TIG set for work I tried it on some 3 inch stainless without purging the inside and there were some nasty oxidisation bogies on the inside
Anyone know if just fuse welding the tubes without filler rod would be strong enough ?
Cheers
Mark
302 V8 Sierra 5 door sleeper under way
-
- Forum Contributor
- Posts: 3979
- Joined: Sat Nov 18, 2006 6:22 pm
- Location: Northern Ireland
Fusing without filler will be fine, but will still oxidise inside.
MIG welding may oxidise a little, but generally nothing intrudes inside the tube so it does remain very clean and smooth.
I'd say that even if you did backpurge, if you arent very good with a TIG the inside still wont be pretty. MIG is just far easier to make a neat job.
If you get Lance/OJZ to weld it up....the welds look as nice inside, as they do outside !!! His work is outstanding.
And TBH, he really isnt expensive either given the quality of work he does.
If I welded it, it would look like f**k all no matter what method lol
MIG welding may oxidise a little, but generally nothing intrudes inside the tube so it does remain very clean and smooth.
I'd say that even if you did backpurge, if you arent very good with a TIG the inside still wont be pretty. MIG is just far easier to make a neat job.
If you get Lance/OJZ to weld it up....the welds look as nice inside, as they do outside !!! His work is outstanding.
And TBH, he really isnt expensive either given the quality of work he does.
If I welded it, it would look like f**k all no matter what method lol
I was going to machine a carb intake for fuel injection but have since sold it and bought myself this for Christmas
It is worth 80 ft lbs over a Victor Junior carb intake at 2500 rpm!
It is very tall
But just squeezes under the bonnet
I'm well pleased, the Ford Racing valve covers I have will not fit with this though but it's not too big a problem.
Thanks for looking
Mark
It is worth 80 ft lbs over a Victor Junior carb intake at 2500 rpm!
It is very tall
But just squeezes under the bonnet
I'm well pleased, the Ford Racing valve covers I have will not fit with this though but it's not too big a problem.
Thanks for looking
Mark
302 V8 Sierra 5 door sleeper under way