Recent content by torch

I think you forgot to attach the picture

I've not had the pleasure of doing this on a B7100, but if I understand correctly with #1 on TDC of compression stroke the crankshaft gear timing mark should be at 12:00, aligning with the idler gear timing mark at 6:00. The cam gear timing mark should be aligned with the idler gear tooth (not a...

Did you ever recheck the compression with the correct Schrader valve core installed in the gauge? As far as rotating the crank -- by hand -- after the engine has been running previously, there should be a nice film of oil on the bearings to protect them. After all, it's less force than...

8% isn't unacceptable, especially for a recently rebuilt cold engine. I assume you zeroed the gauge before starting the test? It is certainly leaking past that valve. It is possible that lapping the valve might reduce the leakage. But bear in mind that the bubbles you are seeing are the result...

They won't be if you keep doing that! They are supposed to be in series with the indicator, which drops the voltage. They are not designed or intended to be subjected to full battery voltage. Connecting them directly will burn them out sooner or later -- probably sooner.

I think the port relief comment was aimed at me -- a way to limit the lifting force on my loader without affecting the pressure available to the 3PH.

Very nice. I also bought 2" diameter cylinders because they were on sale when I built mine. However, I bought 16" stroke ones. I think your approach may be better -- mine is capable of lifting more weight than I really should with a B7100. I knew that going in, but thought I could simply...

It's all about leverage more than specific weight. Let us say that a particular tractor has a 5' wheelbase and that the loader CoG is 3' in front of the front axle (so 8' in front of the rear axle). And let us say that the CoG of that tractor's particular ballast is 4' behind the rear axle...

1. Idle down, especially when lowering (looks like you are doing that already). 2. Use two hands on the control and one direction at a time. Your main (usually right) hand at the end of the lever, as normal, using fingertip pressure. The second (preferably braced against something) firmly...

It gets worse. All that weight is now on the axle that pivots from side to side. Unless the tractor somehow magically stays balanced laterally, the whole thing will lean sideways and quite possibly tip over.

Hard to argue with an approach known to work in that application. But I do note step 4 is "Tap out the axle", which to me implies an interference fit. Good luck and let us know how it all works out!

Ooops. Sorry about that. I forgot they divvied up the B7100s that way. I was just thinking "older".

Just for fun and giggles, I investigated my B7100 (1994 version) exhaust manifold temperatures with a TIC. I set it to °F for consistency with your readings and turned on high, low and centre spot readings. After about 20 minutes of running: 180°F at #1, 220°F at #3. 40°F difference. Ambient...

Look on tractordata.com and scroll down to "Serial Numbers".

That argues the camshaft is not worn. Intake opens 8° after spec. Intake closes 6° before spec. Exhaust opens 13° after spec. Exhaust closes 5° before spec. That argues the camshaft is worn. Or the spec is wrong. Or there was an error in measurement. But the numbers you list match the...