463 engine removal? must change pulley tensioner and belt

[kdmcon]

I am just wondering if it fully necicary to remove the engine to get at the pulley? 5000$ job at the dealer so I want tackle it myself before our season begins up here in canada. If anyone has done it and if they have any helpful tips abd hints it would be greatly appreciated. Thanks

 

[OldMachinist]

You can change the belt without removing the engine but the tensioner mounts to back of the engine and does require engine/pumps assembly removal to work on. I've had the assembly out of my 453 several times and if you have a good way to hoist it you should be able to pull it in less than 3 hours and going back in is the same or less. It's a messy job unless you put caps/plugs on all the hose connections.

 

[kdmcon]

You can change the belt without removing the engine but the tensioner mounts to back of the engine and does require engine/pumps assembly removal to work on. I've had the assembly out of my 453 several times and if you have a good way to hoist it you should be able to pull it in less than 3 hours and going back in is the same or less. It's a messy job unless you put caps/plugs on all the hose connections.

I have car engine hoist. I hoping that will work. Since I will have the engine out is there anything else I should look for to replace?

 

[antfarmer2]

I have car engine hoist. I hoping that will work. Since I will have the engine out is there anything else I should look for to replace?

Might be easyer to ajust the valves

 

[OldMachinist]

Might be easyer to ajust the valves

Engine hoist will work fine. If you add your email address to your profile I can send you detailed instructions on the removal procedure.

Things to do with engine out
Clean out all the debris that gets trapped under and around the engine
Inspect the steel lines that run across the floor of the engine compartment for rust
Replace any hoses that look suspect

 

[kdmcon]

Engine hoist will work fine. If you add your email address to your profile I can send you detailed instructions on the removal procedure.

Things to do with engine out
Clean out all the debris that gets trapped under and around the engine
Inspect the steel lines that run across the floor of the engine compartment for rust
Replace any hoses that look suspect

Thanks!! That would be so great. I updated my profile to include my email so hopefully that works.

 

[OldMachinist]

Thanks!! That would be so great. I updated my profile to include my email so hopefully that works.

I also need the first 3 digits of the machine serial number to make sure I send you the right one.

 

[kdmcon]

I also need the first 3 digits of the machine serial number to make sure I send you the right one.

Okay perfect here is the number SN:522211822

 

[OldMachinist]

Okay perfect here is the number SN:522211822

Message sent.

 

[kdmcon]

Message sent.

OK... so engine is out ready to go. Dropped by the bobcat dealer and got all parts I need and more. I have the small bottom pulley off and im trying to get the pulley off the crank. Now i might have used the wrong style of puller because I will be going back to the dealer since i made this one look like a taco! haha. Any tips on getting it off?

 

[OldMachinist]

OK... so engine is out ready to go. Dropped by the bobcat dealer and got all parts I need and more. I have the small bottom pulley off and im trying to get the pulley off the crank. Now i might have used the wrong style of puller because I will be going back to the dealer since i made this one look like a taco! haha. Any tips on getting it off?

Here's how its done.

 

[kdmcon]

Here's how its done.

I used the wrong puller! oops. Thank you. off to the store to find a small one like the picture

 

[OldMachinist]

I used the wrong puller! oops. Thank you. off to the store to find a small one like the picture

Steering wheel puller or a small harmonic balancer puller.

 

[kdmcon]

Steering wheel puller or a small harmonic balancer puller.

Is there any other tricks to getting this pulley off? I used a smalll steering wheel puller and bent the bolts on it. Pulley doesnt move. I dont want to damage the shaft. Maybe a little heat on the pulley.. but io dont want heat it up too much.

 

[OldMachinist]

Is there any other tricks to getting this pulley off? I used a smalll steering wheel puller and bent the bolts on it. Pulley doesnt move. I dont want to damage the shaft. Maybe a little heat on the pulley.. but io dont want heat it up too much.

For things that are stuck like that my procedure is penetrating oil, heat, tap with brass hammer, let cool and then heat it again with the puller in place putting pressure on it. Sometimes it may take several rounds of this for the heating and cooling cycles to break the rust bond.

 

[kdmcon]

For things that are stuck like that my procedure is penetrating oil, heat, tap with brass hammer, let cool and then heat it again with the puller in place putting pressure on it. Sometimes it may take several rounds of this for the heating and cooling cycles to break the rust bond.

I will try that and let you know the results. Thank you

 

[kdmcon]

For things that are stuck like that my procedure is penetrating oil, heat, tap with brass hammer, let cool and then heat it again with the puller in place putting pressure on it. Sometimes it may take several rounds of this for the heating and cooling cycles to break the rust bond.

OKAY!! Literally 2 seconds of heat and boom it popped off. Thanks again

 

[kdmcon]

OKAY!! Literally 2 seconds of heat and boom it popped off. Thanks again

Okay so engine is all in and running. I just have one issue with my fans. They arent working. Wiring seems good but i think there may be a broken wire on the plug on the alternator. I cant remeber if there were two wires coming out or one. Went to the dealer with little succes except the suggestion of buying a new wiring harness. Any help is appreciated. Thanks

 

[OldMachinist]

Okay so engine is all in and running. I just have one issue with my fans. They arent working. Wiring seems good but i think there may be a broken wire on the plug on the alternator. I cant remeber if there were two wires coming out or one. Went to the dealer with little succes except the suggestion of buying a new wiring harness. Any help is appreciated. Thanks

The fans are controlled directly from the fan relay which is controlled by the engine temp switch.