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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Thu Jan 10, 2013 5:01 pm Post subject: |
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...investigations continue!
Taken two barrels off,marked the inside of the head where they should meet with Sharpie (marker pen) and turned each barrel back and forth to see where they meet. One barrel takes less of the mark away and it looks like it would be good to clean the edge of the barrel. How have people done this or do people lap barrels to heads (I note John Muir doesn't say do this for a 36hp engine).
Thanks
Richard _________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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Rwoodshvac Samba Member
Joined: March 21, 2010 Posts: 202 Location: VA
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Posted: Thu Jan 10, 2013 7:54 pm Post subject: |
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Richard
Measure the length of the spigot end of your cylinders and compare that to the depth of your fly cut. make sure the top cooling fin on the cylinders are not touching your heads
Just thinking if everything fit before you fly cut ? + no copper rings = less clearance between head and first cooling fin _________________ 57 Ragtop Semaphore Sedan
48 Aluminum Case drilled tapped, Full Flow Filter
Porsche 356 B Crankshaft 74mm
Porsche 356 B Rods
Shasta Cylinders with JE Pistons 80mm
WW Okrasa Heads worked by Ron Chuck
Speedwell Ratio Rockers 1.25
Dual Valve Springs w/Lash Caps
Blackline Racing Lifter Inserts, Manton Push Rods
34 Pbic Carbs rebushed by Mr Okrasa
Custom Okrasa Intakes enlarged to 34mm
Gene Burg Sump
Fram bypass Filter with Okrasa Oil Cooler |
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Fri Jan 11, 2013 12:30 pm Post subject: |
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Thanks for the help. Clearance is now OK...it looks like my remaiing issue is to clean up the 'face' of the cylinder. Will then refit the cylinders and mock things up again.
regards
Richard _________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Sat Jul 06, 2013 3:22 pm Post subject: |
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For various reasons this project has been parked until this week. Tops of barrels now flat and polished and seal nicely on heads. Barrels have been honed and broken rings replaced and all assembled (again) into long block.
Despite having shortened pushrods by 2mm there is still very little clearance between rockers and top of valve. On 7 it appears ok but on the last one the rocker almost touches valve without adjuster screw in place. I assume I am ok to grind a little off the rocker?
Hope to be up and running this week if all goes well and I get some help to reinstall!
Thanks
Richard _________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Wed Jul 17, 2013 11:25 pm Post subject: |
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OK glad I didn't take the grinder to the rocker! Took the dog for a nice long walk instead and thought long and hard. I realised what was wrong. I was 180degrees out as the drive on the '019' (actually a BR8) had been taken off and put back on 180degrees out...
Engine now back in and running. Goes really well and noticeably quicker than a stock 36hp. Pulls really well...but need to properly balance the carbs and sort a high idle speed. Adjusted the linkage and it is still high. Any hints to adjusting the RHS volume control screw; there is very little space for my hand?
Thanks for the help and advice people have given on this project and to Matthew at Aircooled Research for some great parts!
Richard _________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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pig-pen Samba Member
Joined: December 04, 2012 Posts: 570 Location: United Kingdom
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Posted: Thu Jul 18, 2013 1:14 am Post subject: |
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Whenever I find a grinder in my hand I put it down and have another good think about things. Glad you did too sir. |
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txoval Samba Member
Joined: January 23, 2004 Posts: 3540 Location: The Woodlands, TX
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Posted: Thu Jul 18, 2013 6:00 am Post subject: |
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Just a note, you would have been ok to grind the rocker tip down a bit. I do that to all my rockers to get the thickness consistent among all (thickness of the rocker head)
Mr. Motorhead is great to work with by the way...half of my parts have come from him and service is top notch |
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Mr. Motorhead Mad Scientist
Joined: January 06, 2004 Posts: 717 Location: Practitioner of 36hp alchemy
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Posted: Thu Jul 18, 2013 8:22 am Post subject: |
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txoval wrote: |
Just a note, you would have been ok to grind the rocker tip down a bit. I do that to all my rockers to get the thickness consistent among all (thickness of the rocker head)
Mr. Motorhead is great to work with by the way...half of my parts have come from him and service is top notch |
And.........if you want to take that rocker modification a little further, you can make them all the same weight like was done in this thread about rockers....
http://www.thesamba.com/vw/forum/viewtopic.php?p=5494829&highlight=#5494829
We can thank Tom for that one. It just takes a little time to core out and weigh a pile of rocker assemblies! _________________ 30 years experience in the sales of new and used auto parts!
36 horsepower parts for sale at http://www.aircooledresearch.com/
Or the new site at http://www.bugparts.com
Check out the Bonneville project:
http://aircooledresearch.com/docs/thebonnevilleproject.html#
"All limitations are self imposed."
Some Chinese guy |
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Tue Jul 30, 2013 3:27 pm Post subject: |
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Had to pull the carbs and manifolds as I realised I had air leaks....in part due to the linkage which attaches to the manifolds. The helm joints that had been used by the previous owner of the manifolds just didn't fit properly (they'd used imperial joints in metric threads with lots of plastic metal to fil the gap). Now have new joints which won't fall off and will also seal in the manifold properly.
Anyway...now need new gaskets for the manifold to head. Does anyone know who stocks them (N138211) and who will charge only reasonable shipping (ie cost of small packet or envelope and stamps) as the big retailers want $45 shipping for a $2 part!!
Many thanks
Richard _________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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Mr. Motorhead Mad Scientist
Joined: January 06, 2004 Posts: 717 Location: Practitioner of 36hp alchemy
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Posted: Tue Jul 30, 2013 4:49 pm Post subject: |
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RichardinNZ wrote: |
Had to pull the carbs and manifolds as I realised I had air leaks....in part due to the linkage which attaches to the manifolds. The helm joints that had been used by the previous owner of the manifolds just didn't fit properly (they'd used imperial joints in metric threads with lots of plastic metal to fil the gap). Now have new joints which won't fall off and will also seal in the manifold properly.
Anyway...now need new gaskets for the manifold to head. Does anyone know who stocks them (N138211) and who will charge only reasonable shipping (ie cost of small packet or envelope and stamps) as the big retailers want $45 shipping for a $2 part!!
Many thanks
Richard |
Ask and ye shall receive.........PM me your mailing address. _________________ 30 years experience in the sales of new and used auto parts!
36 horsepower parts for sale at http://www.aircooledresearch.com/
Or the new site at http://www.bugparts.com
Check out the Bonneville project:
http://aircooledresearch.com/docs/thebonnevilleproject.html#
"All limitations are self imposed."
Some Chinese guy |
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Sat Sep 07, 2013 7:15 pm Post subject: |
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All back together with new helm joints and new manifold to head gaskets; thanks Mr Motorhead.
The linkage isn't perfect and so idling a little fast but even if I disconnect everything still idling too fast. Any ideas? Carbs are looking a little damp (not bad but just a little damp on the sides near their bases). Any ideas why it is running fast? Otherwise it is going well. Still have stock jets in the carbs at present.
Thanks.
Richard _________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Sun Sep 08, 2013 11:09 pm Post subject: |
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OK...thinking further about this. If both carbs shut down OK and it is still running fast can I use the volume control screw on each carb to slow the idle?
Thanks
Richard _________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Sun Dec 13, 2015 12:25 pm Post subject: Re: Engine out...what next |
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Update...
I ran the car OK for about a year, having adjusted the idle by adjusting the volume control screws (advice regarding this would still be good!). Car ran really strong and would pull nicely up all of my local hills! I had to use the car for work for about 6 months, driving 50 miles a day on the motorway.
In Oct'14 the clutch release bearing self destructed and on pulling the engine I realised that this was in part due to the arm/fork its sits on being so worn. I therefore pulled the transaxle and fitted a newly built tunnel trans (1500 gears). At the same time I fitted rebuilt type 3 rear brakes, Goodridge Classic flexible brake hoses and Koni Shocks all round. Finding parts and available time slowed this but the car has now been driving again for 2 weeks. About to head off on a 500mile/800km road trip including New Zealand's 'Forgotten Highway'.
Recent photo below...
Richard
_________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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MacLeod Willy Samba Member
Joined: February 18, 2014 Posts: 933 Location: Ontario Canada
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Posted: Sun Dec 13, 2015 12:57 pm Post subject: Re: Engine out...what next |
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Very nice, long time coming!
Enjoy the ride |
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Thu Dec 17, 2015 12:04 pm Post subject: Re: Engine out...what next |
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Road Trip..
Forgotten World Highway...it is a 150km road with a 36km metalled (gravel) section. I've realised just how good the Koni shocks are. A great upgrade. We have driven about 640km (400 miles) of our trip (over 1.5 days with some visits along the way) and have 160km (100miles) left to go today via some work meetings!
_________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Sun Jul 30, 2017 5:31 pm Post subject: Re: Engine out...what next |
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Still making minor improvements...including 1.4:1 ratio rockers, Vintage Speed TW Sebring exhaust and rebuilt carbs.
My latest issue (which I have never fully resolved) is the linkage for my dual carbs. It is sticking. I was using the stock 36hp return spring over the accelerator cable, but this wasn't great as it wasn't allowing the cable to go at the correct angle at full throttle.
I want to instead add return springs to the carbs (as per later carbs) or to the crossbar linkage. What have others done? Any ideas?
Thanks
Richard
_________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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txoval Samba Member
Joined: January 23, 2004 Posts: 3540 Location: The Woodlands, TX
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Posted: Sun Jul 30, 2017 6:23 pm Post subject: Re: Engine out...what next |
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Richard, it's time for some dual port Okrasa heads! I'm still shocked at how well my engine runs now (tuning my carbs was a major pain, but it was worth it)
Have you run the 1.4's yet? Sometimes I kick myself for selling those |
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Sun Jul 30, 2017 7:41 pm Post subject: Re: Engine out...what next |
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I agree about the heads...but I think I'll get to those via a 2276!!
I'm using the 1.4 rockers now; the car seems to go really well....although not as well as yours must run with the dual ports and dual 36 carbs....
I have just fitted a VJR4 BR25 distributor (010 curve) and it suits the car far better than the VJ4 BR8 (019 curve).
I need to drop the engine to sort the main seal though...so I'll then add the oil baffle then, plus sort this linkage.
Richard _________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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txoval Samba Member
Joined: January 23, 2004 Posts: 3540 Location: The Woodlands, TX
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Posted: Mon Jul 31, 2017 4:41 am Post subject: Re: Engine out...what next |
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I have been putting together a parts list for a 74mm x 94mm engine
While my 36 is fun to drive and more powerful than stock, it is still not "fast" by any means.
When I had the 1.4's, I was going to have to add pushrod extensions to get the geometry right. I believe it was due to my grinded cam
A 2276 would be sweet
Good luck with the linkage, I would try additional springs before changing to a crossbar type |
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