The Redstone RS115 engine and utterpower 6kw PMG. This genset will be located outdoors in an enclosure.
The engine has already been disassembled, crankcase and other parts painted with Glyptal, clearances checked and adjusted, reassembled and test operated.
The Redstone is rated at 22 hp @ 1500 rpm. If anyone cares to see what the inside of the Redstone engine looks like I can post some pix.
flywheel
Those are some nice flywheels.
Henry
Quote from: flywheel on March 26, 2010, 11:58:29 PM
The Redstone RS115 engine and utterpower 6kw PMG. This genset will be located outdoors in an enclosure.
The engine has already been disassembled, crankcase and other parts painted with Glyptal, clearances checked and adjusted, reassembled and test operated.
The Redstone is rated at 22 hp @ 1500 rpm. If anyone cares to see what the inside of the Redstone engine looks like I can post some pix.
flywheel
I would love to see some inside pics!
As I rank amateur, I have a technical question.
Would it not be wrong to run a diesel capable of 22 HP/16KW with a maximum demand of only 6 KW? Is it not better for the engine - and more efficient - to run it more loaded than that?
Just curious.
Cognos, I'm no expert but from what I have read running a diesel at low loads causes carbon buildup and other issues.
Quote from: cognos on March 27, 2010, 07:03:23 PM
As I rank amateur, I have a technical question.
Would it not be wrong to run a diesel capable of 22 HP/16KW with a maximum demand of only 6 KW? Is it not better for the engine - and more efficient - to run it more loaded than that?
Just curious.
That is true BUT I am of the understanding that if one reduces the RPM so that the max crankshaft power the engine can make is reduced and at the same time keeps the bangs hot, i.e. the engine still working hard, the issues of a cold engine will be mitigated. This assumes that proper attention to injector timing advance and lubrication, flywheel mass, etc., are also dealt with appropriately.
I'm Jealous! :'(
Ron
Quote from: vdubnut62 on March 27, 2010, 10:06:11 PM
I'm Jealous! :'(
Ron
No need to be jealous Ron, you already have a 52/2, as in John Deere 70 diesel.
flywheel
Pic, pics, pics...
Thx!
Steve
But, but, but.. uh...it won't fit in the garage.......uh.. my wife says it's too loud.......uh....I can't get a long enough serpentine belt to go around the flywheel... yeah, yeah, that's it....uh.... long enough belt, that's the ticket...
Ron
Redstone block
Redstone piston, bore about 5 5/16", stroke 5 1/8", piston crown oil cooled.
flywheel
Redstone connecting rod with oil cooler. A red straw is placed into the oil hole in the rod to show how oil under pressure is directed the piston crown for cooling.
flywheel
Is the piston aluminum or cast iron ?
veggie
Cast iron (freshly machined look). Aluminum is much lighter in color.
Um, Picture of balance shaft? This one use one working together with crankshaft instead of two balance shafts?
Cheers, Wizard
Wizard,
That oil system is likely there to oil the piston wrist pin bushing on the top end of the con-rod, not there to provide piston cooling. At the low power density this engine runs at oil cooling of the underside of the piston is not needed at all.
rcavictim,
My question was asking about photo of balance shaft.
The other poster was asking about piston cooling and it is nice to have, this side benefit is heat up the oil as well, get most of engine heated up instead of cold spots.
Newer engines are implementing coolant/oil exchangers now to quickly heat up and maintain oil temp to keep oil from overheating, drive off moisture and traces of raw fuels and prolong between oil changes. Also transmission fluid/coolant exchangers already in use for years.
Many times I touched the oil pan after 9 km drive, engine is HOT but oil is lukewarm and often see the mousse in the PCV during the winter, a sign oil is not hot enough.
This is carbureted 2.2L with 3 speed caravan (1987). I'll eventually put that oil/coolant exchanger in use too. :)
Cheers, Wizard
its a piston cooler
reason being, the engine is a direct injected version with an aluminum piston
that bowl gets hot and the piston crown expands more than the cast iron otherwise.
there is no need to squirt oil up under the head of the piston otherwise.
imho
bob g
Quote from: veggie on March 30, 2010, 08:33:12 AM
Is the piston aluminum or cast iron ?
veggie
It is aluminum, flywheel
Balance shaft, there is only one in the Redstone engine. Its not very large and weighs about seven pounds. The oil pump is driven off the end of the balance shaft. The balance shaft ends have bearing races pressed on and the shaft is supported by two roller bearings.
flywheel
I like the roller bearings that are being used. They should handle the stress.
Henry
Wow! Those roller bearings look suspiciously like Chevrolet rear axle bearings! Look to be as heavy duty too.
Ron
The roller bearings are nice and HD but they look like the carriers are phenolic (plastic) and I don't like the idea of trusting anything but brass (with rollers) for this application inside a hot oil environment like a crancase of an engine.
Quote from: rcavictim on March 30, 2010, 11:22:36 PM
The roller bearings are nice and HD but they look like the carriers are phenolic (plastic) and I don't like the idea of trusting anything but brass (with rollers) for this application inside a hot oil environment like a crancase of an engine.
The bearings are made of steel and brass, there is no plastic. The bearings are available with steel or brass cages.
The redstone balance shaft is in the gearcase, its not in the crankcase like most other singles.
flywheel
Quote from: flywheel on March 31, 2010, 08:21:26 AM
Quote from: rcavictim on March 30, 2010, 11:22:36 PM
The roller bearings are nice and HD but they look like the carriers are phenolic (plastic) and I don't like the idea of trusting anything but brass (with rollers) for this application inside a hot oil environment like a crancase of an engine.
The bearings are made of steel and brass, there is no plastic. The bearings are available with steel or brass cages.
The redstone balance shaft is in the gearcase, its not in the crankcase like most other singles.
flywheel
That's a very nice bearing! I was looking for one like that to replace the blown small end crank bearing in my JD175A recently and all I could actually purchase in a roller was fitted with phenolic carrier. I passed and went with a overpriced but 'allegedly' high quality ball bearing.
Thank you for wonderful pictures, this clears up the questions I had with the Redstone engine. flywheel.
Extremely nice set up, very interesting to have balance flyweight in the gear case instead of in the cylinder/crank center-line (this is where back and forth vibration is.).
Reason said so was the balance flyweight in the gear case imparts torque vibration (wagging). Is this reasons for packaging engineering isssues?
Cheers, Wizard
Governor spindle, governor gear and governor. The governor is mounted on the governor gear, the gear is then mounted on the governor spindle. The spindle is in the gearcase but the mounting bolts are located in the crankcase. There are no plastic parts on the Redstone governor, its all steel and cast iron.
flywheel
Quote from: flywheel on March 31, 2010, 09:09:27 PM
Governor spindle, governor gear and governor. The governor is mounted on the governor gear, the gear is then mounted on the governor spindle. The spindle is in the gearcase but the mounting bolts are located in the crankcase. There are no plastic parts on the Redstone governor, its all steel and cast iron.
flywheel
That looks exactly like the governor in my JD175A.
Flywheel,
If those big end bearings are any good there won't be so much pressure where your straw is? Or does the crank pressure supply pass directly across it It will likely simply be more of an oil slinger! That is unless there is a decent sized oil-way from the pressure feed to the crank to that hole. Is there one? A tiny sqirt will, of course , meet the piston as the piston moves 'down' the bore.
I am wondering how much oil would leak as the feed passes by in, what, micro seconds?
Regards, RAB
Have you kept a log of the time you have spent "blueprinting" your itty bitty redstone? ::)
Ron
knowing "flywheel" he has documented every step of the journey, and
when it is done it will run like a swiss watch!
and his attention to detail is second to none, including the paintwork...
it makes me sick!!!
lmao
:)
bob g
Flywheel is pretty thorough on is projects. He will spend a good amount of time going over details before the build.
Henry
Quote from: vdubnut62 on April 01, 2010, 12:21:55 PM
Have you kept a log of the time you have spent "blueprinting" your itty bitty redstone? ::)
Ron
Nope - have not kept a log of time spent. It does indeed take time to go through a engine from top to bottom. The lovely thing about being retired is there is no schedule for anything,
just do as little or as lot as you want.
flywheel
Quote from: oliver90owner on April 01, 2010, 12:35:53 AM
Flywheel,
If those big end bearings are any good there won't be so much pressure where your straw is? Or does the crank pressure supply pass directly across it It will likely simply be more of an oil slinger! That is unless there is a decent sized oil-way from the pressure feed to the crank to that hole. Is there one? A tiny sqirt will, of course , meet the piston as the piston moves 'down' the bore.
I am wondering how much oil would leak as the feed passes by in, what, micro seconds?
Regards, RAB
Crank oil pressure supply does pass across this hole and the Redstone does have large oil passages in the crankshaft.
flywheel
Main sleeve bearing. This bearing is used to feed oil into the crankshaft, notice its grooved on the backside and has four openings on the inside to force oil into the crankshaft. This style sleeve bearing is also used on many other singles.
flywheel
hey all, driving the oil pump off the balance shaft seems to keep the mesh loaded. they do not rattle at low rpm like the chanfa. i think th ey have a sound level of the lister types. flywheel, was your cam-shaft bushing missig at the case cover end? blink
Quote from: prof.blink on April 04, 2010, 12:26:53 AM
...was your cam-shaft bushing missig at the case cover end? blink
It is missing on my JD175A.
Quote from: prof.blink on April 04, 2010, 12:26:53 AM
hey all, driving the oil pump off the balance shaft seems to keep the mesh loaded. they do not rattle at low rpm like the chanfa. i think th ey have a sound level of the lister types. flywheel, was your cam-shaft bushing missig at the case cover end? blink
Yes - the bushing was missing, it does show one in the parts manual, I have placed shim washers on the outer end of the camshaft.
flywheel