| Author |
Message |
Thomas Reed (Treed)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 16, 2006 - 8:07 pm: | |
I had the misfortune of loosing my 6-71 due to overheating. I can pickup a rt. hand rotating take out. What is involved in changing the rotation? How many hours estimated by a good shop? Just trying to get a handle on best options.
Thanks, Tom
'Ramblin Rose'
PD4104-5006 |
Bob Wies (Ncbob)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 16, 2006 - 8:16 pm: | |
Depending on the model, I know you can reverse the cam and the balance shaft...and reverse the head, etc. Hopefully it's a high block (late model) and then the accessories as well...starter.
My memory fails me..but you can bet it ain't gonna be cheap.
You were figuring on Piston and Liner Kits weren't you?
best....
NCbob |
jimmci9 #2
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 16, 2006 - 9:05 pm: | |
to make it fit your 4104, chances are it will be necesary to turn the head around, interchange cam with balance shaft, move the blower, exhaust, and water manifold to the other side, and find a correct rotation oil pump... alond with the oil coooler and governor...the oil cooler and governor from the failed engine will need to be re-used...'cause it's on the wrong side.....in addition to turning the block around also.... it might be better to overhaul what you've got, cause to change the rotation and move accessories to fit your 4104 will require nearly a complete dis-assembly... figure 40-60 hrs, plus labor to remove, install....this amount of time includes cleaning and inspecting for re-useability... |
Tim Hoskinson (Tdh37514151)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 16, 2006 - 10:00 pm: | |
Hi Thomas the rotation is not a great big problem. The style however can be quite expensive to have done as to change a C or D style engine into a A style the crank shaft must be removed turned around in the block. The head from a B or C style engine can be changed to a A or D style by exchanging the cam and balance shaft as someone else has mentioned. If you are able to do the work your self it may be worth it provided the engine can be purchased cheaply. If you are able to find a right hand A style ( blower on left exhaust on right as you view the flywheel end)then you need only reverse the rotation. This can be done by removing the idler gear from your present left hand engine and installing it on the right hand mount position in the new engine's rear end plate . Next the oil pump will need the relief assymbly turned around it is a common belief that oil pump would need changed however this not the case. Remember that when changing ratation only the crankshaft changes rotation the upper end of the engine rotation stays the same. One other problem you may run into is the later model 671 engines had 90 degree oil openings in the crank shaft and may not be reversed. You need to make shure the crank you use is drill strait through. Best of luck. Tim |
Thomas Reed (Treed)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, May 16, 2006 - 11:37 pm: | |
Thanks alot for the feedback. The engine looks to be an A. Blower on left, exhaust on right. Won't the idler gear set (all five) not have to be swapped over as they would be cut the opposite direction? Thanks, Tom |
Tim Hoskinson (Tdh37514151)
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, May 17, 2006 - 8:55 am: | |
Tom no the angle of the gears in order to mesh one to the other (cam to balance shaft) are cut in opposition so the idler must be cut to run with one gear or the other. I do opogize however for failing to tell you that you also need the gear on the crankshaft from your doner engine that was a left hand rotation. If the engine you have found is a A style changing it for use in a V drive bus should be considerably cheaper than a total rebuild of the original. An engine that has been badly overheated can turn out to be the most costly to repair as this can result in problems with the castings. Best of luck. Tim |