dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
On a more positive note the heads have been lubed up, and assembled, and are ready to fit.
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westi wrote:That's mad Alan.
2715cc Pauter Build-up(New stuff most days!)
shiftyvw Wolfsburg Wizard
523 posts · joined Sep 2002 ·
just out of curiosity, do you have flow figures on those heads?
testing 1 2 3...
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Yes, at what lift and pressure drop would you like?
westi wrote:That's mad Alan.
shiftyvw Wolfsburg Wizard
523 posts · joined Sep 2002 ·
how about 25in at a couple of points to 650? whatever figures you have, doesnt really matter, as long as they arent top secret!
testing 1 2 3...
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Still looking, but heads on the car currently,
@.250" =172
@.500" =259
@.650" =285
@.750" =294 cfm @ 25"
@.250" =172
@.500" =259
@.650" =285
@.750" =294 cfm @ 25"
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
I actually flowed them at 10" so these are converted figures.
My heads as pictured above flow less, but I havn't flowed them since I fly cut the crap
out of them for N/A use...but they were 10cfm@10" behind at .750".
This difference is not as great at lower lifts.
My heads as pictured above flow less, but I havn't flowed them since I fly cut the crap
out of them for N/A use...but they were 10cfm@10" behind at .750".
This difference is not as great at lower lifts.
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Found old figures...@.650 =272cfm@25"
@.750=279cfm@25" 0
@.750=279cfm@25" 0
westi wrote:That's mad Alan.
shiftyvw Wolfsburg Wizard
523 posts · joined Sep 2002 ·
cool, thanks. Higher than what i was expecting!
testing 1 2 3...
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
I am doing this assembly in my lunch time so not much progress...especially with all these head studs.
Barrels go on with the fitted piston, then circlips in and I use a grey silicone sealant under their base.
I like to fit the piston to the cylinder on the bench, before it goes on the engine.
I put never seize on the threads before the head goes on, because it is so messy.
Always use some type of lube on the threads.
I also quickly checked the conrod bolt tension (75ft-lbs in this case), before the bore kit was fitted.
[ Edited on 21-5-2006 by dangerous ]
Barrels go on with the fitted piston, then circlips in and I use a grey silicone sealant under their base.
I like to fit the piston to the cylinder on the bench, before it goes on the engine.
I put never seize on the threads before the head goes on, because it is so messy.
Always use some type of lube on the threads.
I also quickly checked the conrod bolt tension (75ft-lbs in this case), before the bore kit was fitted.
[ Edited on 21-5-2006 by dangerous ]
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westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
A few of the head nuts on these and other brands of head are inaccessable with normal sockets,
so these tools are made to get to the upper and lower nuts.
Studs that have 10mm threads are torqued to 25 lbs and the 12mm top corners are at 30lbs.
so these tools are made to get to the upper and lower nuts.
Studs that have 10mm threads are torqued to 25 lbs and the 12mm top corners are at 30lbs.
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westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
These photos show the extra headstud that is under the rockers, which uses a VW 15mm sized spanner.
And the other 12point nut is in the rocker area and is a 1/2 inch socket size. It is a tight squeeze and requiresthe washer and socket to be clearanced.
And the other 12point nut is in the rocker area and is a 1/2 inch socket size. It is a tight squeeze and requiresthe washer and socket to be clearanced.
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westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
With the heads tensioned down, I can double check that the pushrods and rockers on No1 are all as intended.
I set the tappets at zero by checking that the pushrod turns freely, and that I can feel no clearance.
This MUST be done when the engine is cold, and all the other rocker assemblies are on the engine
to even out load on the cam. This method can catch you out if the weather's temp changes, but usually
as soon as the engine warms up (steel based pushrods), the clearance re-appears.
At operating temp the clearance opens up to .016 to .020" !
I set the tappets at zero by checking that the pushrod turns freely, and that I can feel no clearance.
This MUST be done when the engine is cold, and all the other rocker assemblies are on the engine
to even out load on the cam. This method can catch you out if the weather's temp changes, but usually
as soon as the engine warms up (steel based pushrods), the clearance re-appears.
At operating temp the clearance opens up to .016 to .020" !
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westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
With the tappets set I rotated the engine over full lift and then watched through the inlet port
as the engine passed TDC on the overlap to see that indeed the inlet valve actually
passes below the top surface of the piston in the notch.
as the engine passed TDC on the overlap to see that indeed the inlet valve actually
passes below the top surface of the piston in the notch.
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westi wrote:That's mad Alan.
Stanley I guess the reward is in the doing of it
4,523 posts · joined Mar 2003 ·
nice work Dave...keep the pics coming
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Today at lunch I finished fitting the heads, and double checked the rocker and pushrod geometry.
The adjuster screw needs to be inline with the pushrod, when the valve is at half lift.
What I also noticed was that the heavy springs have (due to flex) taken alot of lift away.
The inlet had .710" with the soft springs, and now has .675" with the heavy ones.
Likewise, the exhaust is down to .605" from .625".
This is common with these springs, and the flex is in the pushrod, and (believe it!) those rocker arms.
The adjuster screw needs to be inline with the pushrod, when the valve is at half lift.
What I also noticed was that the heavy springs have (due to flex) taken alot of lift away.
The inlet had .710" with the soft springs, and now has .675" with the heavy ones.
Likewise, the exhaust is down to .605" from .625".
This is common with these springs, and the flex is in the pushrod, and (believe it!) those rocker arms.
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westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Here is the pushrod angle at full lift.
At zero lift this angle should be about the same, only the othe way.
At zero lift this angle should be about the same, only the othe way.
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westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Also worth noting is that when I calculated the pushrod length, I had the adjuster screw only one turn from
under the rocker arm so that there was a minimum hanging out, but still had some adjustment.
under the rocker arm so that there was a minimum hanging out, but still had some adjustment.
westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Here is the engine head to head...it's no show-piece but I am a go-boy not a show-boy....yeah, should have
re-painted the cylinders!
Pushrod tubes are Pauter and use a water boxer seal at the case end and type one on the head end.
[ Edited on 13-1-2006 by dangerous ]
re-painted the cylinders!
Pushrod tubes are Pauter and use a water boxer seal at the case end and type one on the head end.
[ Edited on 13-1-2006 by dangerous ]
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westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
The ugly patch welded into the lid was from the old blower days and is a war injury from
a pair Carrillo rods that came out...well, the top half of them anyhow.
a pair Carrillo rods that came out...well, the top half of them anyhow.
westi wrote:That's mad Alan.
DIY-DUB Custom Title Time!
1,591 posts · joined Apr 2004 ·
it hurts just thinkin how much this would be costing you, looks great, thanks for the fast reply also, figured the time had something to do with it👍
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Today I fitted the pushrod tubes and reassembled the rockers and push rods.
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westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
The front cover contains the dizzy drive ( the only Volksy part other than the headstuds),
and has to have that, and the pulley seal fitted before instalation.
There is also an 'O' ring at the main gallery where the full flow return would be.
and has to have that, and the pulley seal fitted before instalation.
There is also an 'O' ring at the main gallery where the full flow return would be.
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westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Well actually, the pulley was cool, but the damn degree ring was a night mare.
After marking out TDC and BDC I went to fit the degree ring and found that it was not flat enough
for the sticky back to hold. I suppose I cant complain, it was pretty cheap from Bergs (oxymoron?!)
I ended up Arylditeing it on and used clamps that I had to keep moving around, lest they stick to the pulley too.
Anyhow, the thinners that was supposed to activate the sticky back was used to wipe all the excess glue off me, my tools, and the pulley.
Once the pulley was on, I tensioned it up to 150 ftlbs.
Looks pretty good, but not worth the 10hours and materials needed to do the job!
After marking out TDC and BDC I went to fit the degree ring and found that it was not flat enough
for the sticky back to hold. I suppose I cant complain, it was pretty cheap from Bergs (oxymoron?!)
I ended up Arylditeing it on and used clamps that I had to keep moving around, lest they stick to the pulley too.
Anyhow, the thinners that was supposed to activate the sticky back was used to wipe all the excess glue off me, my tools, and the pulley.
Once the pulley was on, I tensioned it up to 150 ftlbs.
Looks pretty good, but not worth the 10hours and materials needed to do the job!
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westi wrote:That's mad Alan.
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
So here is where I am at today.
Next week will have the rocker covers on, and then the
rest of the parts will be robbed off the engine that is in the car at the moment.
Next week will have the rocker covers on, and then the
rest of the parts will be robbed off the engine that is in the car at the moment.
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westi wrote:That's mad Alan.
2443TT Fahrvergnugen
962 posts · joined Dec 2002 ·
As Reub would say... HORN! That looks wild... I predict a new all motor record that will have the honda's crying no fair for years to come!
[ Edited on 14-1-2006 by iswinkels ]
[ Edited on 14-1-2006 by iswinkels ]
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Today I sealed up the rocker area with these massive rocker covers.
I also fitted a dunger dizzy to stop the drive winding out.
The flywheel is actually a modified 36 hp unit with the ring gear moved out a little
and some welding to form a location recess on the back.
The bolt pattern is a 3" pcd the same as most ford 6 and 8 cylinder engines.
I tensioned it down to 75 ftlbs.
[ Edited on 16-1-2006 by dangerous ]
I also fitted a dunger dizzy to stop the drive winding out.
The flywheel is actually a modified 36 hp unit with the ring gear moved out a little
and some welding to form a location recess on the back.
The bolt pattern is a 3" pcd the same as most ford 6 and 8 cylinder engines.
I tensioned it down to 75 ftlbs.
[ Edited on 16-1-2006 by dangerous ]
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westi wrote:That's mad Alan.
56astro Custom Title Time!
1,772 posts · joined Aug 2002 ·
Ya better be wearing a harness, and carrying a torch when ya walk past those inlet ports
Very interesting thread, thanks
Very interesting thread, thanks
VW car, VW engine ...... keepin it "real"
35MPG on 101.3kPa
Doug Sweetman Nil Bastardo Carborundum
2,128 posts · joined Sep 2002 ·
lol... I love the fact that all these thousands of $$ and hundreds of hp are all transmitted through a (modified) 36hp flywheel 🙂 love the irony...
13BVW Seriously Crusin Dubber
151 posts · joined Sep 2005 ·
:P im drooling good to see some people aren't afraid to show what they have
and how to do it !!!!
and how to do it !!!!
13BVW 11.80@114mph
dangerous 23 Windows of Awesome
5,901 posts · joined Jan 2005 ·
Welcome to the forum Andrew.
westi wrote:That's mad Alan.