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#281 |
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Join Date: Mar 2021
Posts: 131
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Crankcase compression: I have not read all the postings in this thread, I have not read all the engineering data. Has there been any discussion on crankcase compression ? All modern engines, at least the last 50+ years, Have some form of Positive Crankcase Ventilation. What is the thinking on this new engine ? I know I addressed it 30+ years ago on my own modified B engine with a PCV valve. All engines have a certain amount of "leakdown" Thanks, Rick.
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#282 |
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Join Date: Apr 2013
Location: santa rosa ca
Posts: 258
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Ballpark what does one of these cost?
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#283 |
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Join Date: May 2017
Location: Denver Area
Posts: 433
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#284 |
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Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,565
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I can't speak for Lawrie but I doubt accommodating headers was a consideration. Headers are not possible here.
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#285 | |
Senior Member
Join Date: May 2010
Location: South California
Posts: 6,189
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I’m taking ‘compression’ to crankcase pressure. A/B Ford engines, including new one, all have .... an oil fill tube. That handles any blow by. Ergo... zero crank case pressure... as long as tube is not plugged. Last edited by hardtimes; 03-25-2021 at 10:50 PM. Reason: Zzzzz |
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#286 |
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Join Date: May 2010
Location: South California
Posts: 6,189
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First run +\minus... $3800. Mr Burtz has said that he will (hold) 2nd run at near this price. Thereafter price per unit will rise. NOTE: The basic engine parts includes block, crank, rods, some necessary plugs/fasteners. Also an owner manual. A 30 lb flywheel can be purchased also. Hope this helps. |
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#287 |
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Join Date: May 2017
Location: Denver Area
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#288 |
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Join Date: Mar 2021
Posts: 131
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Hardtimes, Yup crankcase pressure, All engines have it. How well the filler tube handles it depends on leakdown, RPM, wear. Road draft tubes where an early attempt to deal with it. Looks like no one is concerned about, I was just curious what the thinking is. Rick.
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#289 |
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Join Date: May 2010
Location: Qld, Australia
Posts: 4,251
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They are harder to fit up on a RHD car.
Arnold is right, The filter is made to fit up with a stock manifold and carb, as well as an alloy manifold and down draft carb like a 97, as well as the engine pans. Lawrie |
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#290 |
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Join Date: May 2010
Location: Anderson, Texas
Posts: 278
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Im interested in the PCV question also
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#291 | |
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Join Date: May 2017
Location: Denver Area
Posts: 433
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Take care. |
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#292 |
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Join Date: May 2010
Location: South California
Posts: 6,189
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Fit/ finish.....Burtz engine
Today I made a trial installation of a ‘28 5 bearing cam... into the 5 cam bearing Burtz block. IT FIT TIGHT AND RIGHT, into the already installed cam bearings. A great feeling when buying equipment that works as sold new. Thanks Terry Q: Terry... Im thinking of buying Using same alum oil pump (Stipe).. in your new engine kit. Does the ‘DOG’ clamp work with Stipe oil pump ? Any plumbing methods/tips used with that pump will help. Thanks. |
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#293 |
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Join Date: May 2010
Location: Campbell,CA, USA
Posts: 333
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Yes, a dog clamp will work with the Stipe oil pump.
The Stipe pump comes machined to direct all oil to the outside of the cylinder block through the 1/8 NPT hole that must be enlarged to 1/4 NPT. The Stipe oil pump comes with machining instructions that will allow it to deliver oil internally like a stock Model A oil pump. See "2) Oil System Options" in the "Builders Guide" found at www.modelaengine.com. The latest "Builders Guide" has 27 March 2021 under the title. |
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#294 |
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Join Date: May 2010
Location: midlothian illinois
Posts: 449
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With the delivery of the1st batch of motors being fulfilled, it would appear that a wonderful cottage industry could very well spring up to humidity the majority of us . High volume oil pumps are mandatory for the Burtz block, as well as 5 main bearing cam shafts , full flow oil filers and possibly a few other things on the average builders wish list. These individual items along with the new block gives a whole new set of opportunities for the number of new replacement OHV systems out now and coming on line very soon.
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#295 | |
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Join Date: May 2010
Location: Camarillo, CA and Pine Grove, CA
Posts: 2,843
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https://www.snydersantiqueauto.com/P...earchByKeyword
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#296 | |
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Join Date: Nov 2016
Location: SoCal
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#297 |
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Join Date: Jun 2014
Location: Melbourne, Australia
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Agreed. He should find another engine builder, IMO.
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#298 |
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Join Date: Jun 2010
Location: 34.22 N 118.36 W
Posts: 1,068
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Something to keep in mind on the oil pumps, while the motor is set up to run a full pressurized system, the oil pump drive mechanism is marginal.
The stock Mod "A" had a transfer pump, not a pressure pump. If you attempt to run too much oil pressure, it will prematurely wear the stock drive unit. I have found a moderate pressure works well with stock drive assembly. If you think you are going racing it is wise to use a pump driven off the cam or a belt from crank. John
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#299 |
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Join Date: May 2010
Location: Camarillo, CA and Pine Grove, CA
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The engine was a Ford, not a Burtz.
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1921 Runabout 1930 Tudor Early 1930 AA Speed costs money. How fast do you want to go? ![]() |
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#300 |
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Join Date: Nov 2016
Location: SoCal
Posts: 877
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Chris, You started this thread, I assumed it was for a Burtz block.
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