Talk:Iron Duke engine

message: My Pontiac Astre had an Iron Duke, and I seem to remember that its intake manifold was on the left (driver's) side.  Anyone concur? -—Preceding unsigned comment added by 198.147.103.35 (talk • contribs) 
:Yes, the intake is on the driver's side (opposite side from the 140). And you can always spot one easily in the H body cars as the dipstick is on the passenger side.  — Preceding unsigned comment added by 2607:FCC8:A2C0:E700:E0FE:4445:3ED4:26D4 (talk) 13:56, 8 December 2015 (UTC)
thread_title: Intake manifold on passenger side?

message: Where is this engine ever referred to as 2500? I've never seen that anywhere. --Sable232 02:44, 28 November 2006 (UTC)
replies: text: I've never heard any such reference myself.--King V (talk) 06:21, 24 December 2007 (UTC)
replies: text: Only in the Oldsmobile Omega ES2500 of 1981 or 82 vintage.—Preceding unsigned comment added by 67.81.79.148 (talk) 22:28, 19 June 2009 (UTC)
replies: text: It is called 2500 because it is a 2.5 liter engine. Mine is 39 years old and runs like a champ with great gas mileage 32 mpg.  — Preceding unsigned comment added by 2607:FCC8:A2C0:E700:E0FE:4445:3ED4:26D4 (talk) 13:53, 8 December 2015 (UTC)
thread_title: 2500?

message: The statement about heating the camshaft timing gear in oil to put it on the camshaft is correct for an aluminum gear (a "performance" part). But this isn't part of the directions for installing the stock "composite" plastic timing gears that I have seen.  
Tashiro (talk) 13:24, 27 September 2008 (UTC)
thread_title:  Aluminium timing gear heated in oil, but not the others ? 

message: I've seen one of these engines where a retainer bracket for the lifters broke.  One lifter turned sideways in its bore and the roller wore the cam lobe down.  When the engine was taken apart two of the other brackets were cracked.  When these brackets are installed, you can see that they often rub against the lifter so much that it will not drop of its own weight (when the rocker arm is not on the push rod).  The brackets are flimsy and I suspect they get hot from friction and crack.
Tashiro (talk) 13:24, 27 September 2008 (UTC)
replies: text: Who knows if the engine you looked at ever had its oil changed often enough.  —Preceding unsigned comment added by 67.81.79.148 (talk) 22:29, 19 June 2009 (UTC)
replies: text: I have 2 great running Iron Duke engines that are 38 and 39 years old. They are very reliable and I get very good gas mileage (32) mpg. Al.  — Preceding unsigned comment added by 2607:FCC8:A2C0:E700:E0FE:4445:3ED4:26D4 (talk) 14:04, 8 December 2015 (UTC)
thread_title:  Insidious weakness ? 

message: The Chevy S10 books by Haynes and Chilton show that when the piston in cylinder 1 is at TDC on the compression stroke, the timing mark on the camshaft gear is about at 5 o'clock and matches with the mark on the crankshaft gear which is at about 11 o'clock.  But I find (with both an aftermarket plastic timing gear and an aftermarket aluminum gear) that this is wrong on an Iron Duke from a 1987 S10 Sonoma.  It is 180 degrees off.  The mark on the camshaft gear needs to be at about 11 o'clock.
Tashiro (talk) 13:34, 27 September 2008 (UTC)
thread_title:  Timing mark on camshaft timing gear ? 

message: I'm not sure the 151cu engine in the Brazilian Chevrolet Opala was an "Iron Duke".  The car's article contradicts itself whether it was or not, and if the engine came out in 1977, it wouldn't have appeared on the Opala starting in 1975. --Vossanova o< 19:11, 31 March 2011 (UTC)
thread_title:  151-S/Chevrolet Opala 

message: I got a hold of one of these cars that was gonna be melted down.   It drives ok, but gets over 30 MPG reliably.  If it dies I will do a gallery of this engine if the demand is there.  --Dana60Cummins (talk) 18:55, 15 August 2011 (UTC)
thread_title:  1987 Iron Duke engine gallery. 

message: Found this on GM Powertrain's website: http://gmpowertrain.com/pdfpage.aspx#I_30LI4_specs. It's a 3.0 L OHV all cast iron engine with the same bore as the Iron Duke 2.5. I have a hunch that this more than a coincidence. VX1NG (talk) 16:29, 19 November 2013 (UTC)
replies: text: I think you are right.--Dana60Cummins (talk) 16:57, 19 November 2013 (UTC)
thread_title:  Still in production?