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184 engine is making loud knocking noise in the rear by the flywheel.
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- 5+ Years
- Posts: 11
- Joined: Mon Oct 01, 2018 1:54 pm
- Zip Code: 43334
- Location: Marengo OH
184 engine is making loud knocking noise in the rear by the flywheel.
My 184 craped out today, is started making a loud knocking noise in the rear by the flywheel for a few seconds and it stopped. When I try to start it is making the same noise. What am I looking at? camshaft? main bearing? Oil pressure seem OK, no pressure gauge but the oil level is good.
If it is a camshaft or main bearing, how difficult of a job is replacing? Total engine rebuild?
thanks,
Barna
If it is a camshaft or main bearing, how difficult of a job is replacing? Total engine rebuild?
thanks,
Barna
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- 5+ Years
- Posts: 254
- Joined: Tue Jul 29, 2014 4:16 pm
- Zip Code: 45325
- Tractors Owned: IH 184
- Location: Farmersville ohio
Re: 184 engine is making loud knocking noise in the rear by the flywheel.
I would pull the driveshaft cover and the side covers and see if the problem is in the clutch or the PTO clutch or drive belts. The C60 engine has a pretty stout bottom end. Check the easy stuff before pulling the engine.
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- 10+ Years
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- Joined: Tue Jul 22, 2008 12:44 pm
- Zip Code: 48370
- Tractors Owned: 184
- Location: Oxford, MI
Re: 184 engine is making loud knocking noise in the rear by the flywheel.
Several options.
1) Clutch Splines are significantly worn
Take out of gear. See how far you can rotate the driveshaft. There shouldn't be much (barely any) slop.
2) PTO Belt Tensioner Pulley has worn bearings or its bracket is worn
Remove the PTO belts and tie them out of the way (slide the belts forward off the tensioner pulley). See if the noise goes away.
3) Worst Case: Broken Crankshaft
Difficult task? Takes a good part of a day to figure out. I'd do as Larry suggested first. Then I'd remove the rockshaft and drop the oil pan.
1) Clutch Splines are significantly worn
Take out of gear. See how far you can rotate the driveshaft. There shouldn't be much (barely any) slop.
2) PTO Belt Tensioner Pulley has worn bearings or its bracket is worn
Remove the PTO belts and tie them out of the way (slide the belts forward off the tensioner pulley). See if the noise goes away.
3) Worst Case: Broken Crankshaft
Difficult task? Takes a good part of a day to figure out. I'd do as Larry suggested first. Then I'd remove the rockshaft and drop the oil pan.
184 w/ Creeper & 3-Point
IH 3160a Mower
IH Model 15 Tiller
IH-54 Blade
IH 3160a Mower
IH Model 15 Tiller
IH-54 Blade
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- 5+ Years
- Posts: 11
- Joined: Mon Oct 01, 2018 1:54 pm
- Zip Code: 43334
- Location: Marengo OH
Re: 184 engine is making loud knocking noise in the rear by the flywheel.
Larry B wrote:I would pull the driveshaft cover and the side covers and see if the problem is in the clutch or the PTO clutch or drive belts. The C60 engine has a pretty stout bottom end. Check the easy stuff before pulling the engine.
This was the first thing I checked, all is OK, I am able to rotate the flywheel and there are no obstructions, nothing damaged observed.
Barna
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- 5+ Years
- Posts: 11
- Joined: Mon Oct 01, 2018 1:54 pm
- Zip Code: 43334
- Location: Marengo OH
Re: 184 engine is making loud knocking noise in the rear by the flywheel.
outdoors4evr wrote:Several options.
1) Clutch Splines are significantly worn
Take out of gear. See how far you can rotate the driveshaft. There shouldn't be much (barely any) slop.
2) PTO Belt Tensioner Pulley has worn bearings or its bracket is worn
Remove the PTO belts and tie them out of the way (slide the belts forward off the tensioner pulley). See if the noise goes away.
3) Worst Case: Broken Crankshaft
Difficult task? Takes a good part of a day to figure out. I'd do as Larry suggested first. Then I'd remove the rockshaft and drop the oil pan.
If broken shaft, is this something I can see if the oil pan is removed?
thanks,
Barna
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- 10+ Years
- Posts: 2783
- Joined: Tue Jul 22, 2008 12:44 pm
- Zip Code: 48370
- Tractors Owned: 184
- Location: Oxford, MI
Re: 184 engine is making loud knocking noise in the rear by the flywheel.
With the oil pan removed, you may (or may not) be able to see the crack while installed, but it becomes very apparent when you turn the crankshaft by hand and one (or more) of the pistons don't move.
Back in 2011, my 184 broke the crankshaft between #3 and #4. I attributed the root cause back to the installation of flat top cast iron pistons (.020 over) when the PO did a rebuild. The pistons should have been the lighter aluminum pop-up pistons.
Back in 2011, my 184 broke the crankshaft between #3 and #4. I attributed the root cause back to the installation of flat top cast iron pistons (.020 over) when the PO did a rebuild. The pistons should have been the lighter aluminum pop-up pistons.
184 w/ Creeper & 3-Point
IH 3160a Mower
IH Model 15 Tiller
IH-54 Blade
IH 3160a Mower
IH Model 15 Tiller
IH-54 Blade
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Re: 184 engine is making loud knocking noise in the rear by the flywheel.
Got a 185 knocking too!! ---I was thinking rear main or #4 rod but have no idea at this time and no time to mess with it. When it gets warmed up the knock is a hard steady type like bad rod. It seams to be more towards the back of the motor. --- all drive lines/clutches/belts are ok. -- I don't have any sides/tunnel cover on mine so I can see in there.
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- 5+ Years
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- Zip Code: 43334
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Re: 184 engine is making loud knocking noise in the rear by the flywheel.
After talking to a few people, they suggest that the problem maybe a bad rod. Its ben a while since I did significant engine work but I do have experience changing rods. Is it just pulling the valve cover off and removing the rocker arms and pulling the rod? The last time I did this (1980 Pontiac Phoenix) it was not too difficult. Looks like I have to remove the top cover and gas tank to get to the engine.
thanks,
Barna
thanks,
Barna
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- 5+ Years
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- Zip Code: 45325
- Tractors Owned: IH 184
- Location: Farmersville ohio
Re: 184 engine is making loud knocking noise in the rear by the flywheel.
The c60 engine is a valve in block engine or a flathead engine. The valve cover is on the side behind the in/ex manifold. If it is a rod or main bearing you can remove the deck and the rock shaft and I think you can remove the oil pan and check the rod and main bearings. You can use plastigage to check bearing clearances.
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- 5+ Years
- Posts: 11
- Joined: Mon Oct 01, 2018 1:54 pm
- Zip Code: 43334
- Location: Marengo OH
Re: 184 engine is making loud knocking noise in the rear by the flywheel.
Larry B wrote:The c60 engine is a valve in block engine or a flathead engine. The valve cover is on the side behind the in/ex manifold. If it is a rod or main bearing you can remove the deck and the rock shaft and I think you can remove the oil pan and check the rod and main bearings. You can use plastigage to check bearing clearances.
Is this possible to do without removing the engine from the frame?
Barna
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Re: 184 engine is making loud knocking noise in the rear by the flywheel.
I am not familiar with the 184 chassis, can you disconnect the clutch shaft like a 154 and then run the engine? if so it will tell you if the noise is in the engine or driveline
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- 5+ Years
- Posts: 11
- Joined: Mon Oct 01, 2018 1:54 pm
- Zip Code: 43334
- Location: Marengo OH
Re: 184 engine is making loud knocking noise in the rear by the flywheel.
tst wrote:I am not familiar with the 184 chassis, can you disconnect the clutch shaft like a 154 and then run the engine? if so it will tell you if the noise is in the engine or driveline
100% sure its in the engine,
Barna
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- 5+ Years
- Posts: 254
- Joined: Tue Jul 29, 2014 4:16 pm
- Zip Code: 45325
- Tractors Owned: IH 184
- Location: Farmersville ohio
Re: 184 engine is making loud knocking noise in the rear by the flywheel.
Never tried to pull an oil pan with engine in frame but I don't think there is a cross member so you should be able too
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Re: 184 engine is making loud knocking noise in the rear by the flywheel.
Get a long3/8” or 1/2” dr extension. Put it to your ear and move it around to listen where the noise is coming from. Trust me you will hear where it’s coming from.
I'm technically misunderstood at times i guess its been this way my whole life so why should it change now.
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- 10+ Years
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- Tractors Owned: LoBoy 185 with Woods mower
LoBoy 184 with Woods mower and 3-pt
LoBoy 184 with RM59-LB mower - Circle of Safety: Y
Re: 184 engine is making loud knocking noise in the rear by the flywheel.
In order to remove the front three oil pan bolts on a numbered loboy, remove the two bolts holding the steering arm cross member and it will move out of the way.
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