The Forestry Forum

General Forestry => Forestry and Logging => Topic started by: smwwoody on February 19, 2015, 09:37:24 AM

Title: engine trouble
Post by: smwwoody on February 19, 2015, 09:37:24 AM
The engine in my Q80 just gave up.  My question is .  I have a good 6bt out of a dodge truck. It is a 215 hp 12 valve.  What issues will I have putting this in my Q80. Other than I will need to use the exhaust and some other external parts off of the skidder motor
Thanks
Woody
Title: Re: engine trouble
Post by: barbender on February 19, 2015, 10:06:40 AM
Was the engine in the Q80 a 5.9 as well? If so what HP rating? If it's much different, I suppose you could just swap out the injection pumps. I wonder how many 12 valve 5.9's are getting transplanted into equipment now that the pickups they came in are falling apart, and the engines are just getting broke in ;)
Title: Re: engine trouble
Post by: smwwoody on February 19, 2015, 10:36:33 AM
It was a 5.9 in the Q80 @ 205 hp
Title: Re: engine trouble
Post by: barbender on February 19, 2015, 11:13:28 AM
That should be a good match horsepower-wise. The Q80 is your Clark skidder, right? That engine doesn't have any governing mechanism, right? Does it have the Bosch 7100 pump? I'm assuming the pickup 5.9 has the 7100 if it is a 215 HP. If the pump configuration is the same, it should be a pretty straightforward swap. Mind you, I've never did one of these swaps and I'm just sharing my limited 5.9 knowledge, mostly because no one more knowledgeable has posted anything yet, and I am sitting here waiting for my machine to warm up after fighting to get it started today (-30° F). So take it for what it's worth (about .02 ;)).
Title: Re: engine trouble
Post by: beenthere on February 19, 2015, 11:48:13 AM
And here I thought this was your Q80.

http://www.autoexpress.co.uk/infiniti/88678/infiniti-q80-inspiration-concept-to-make-production
Title: Re: engine trouble
Post by: smwwoody on February 19, 2015, 02:25:04 PM
The Q 80 is a Franklin

Both motors have the P pump. O think this should work
Title: Re: engine trouble
Post by: treeslayer2003 on February 19, 2015, 02:48:02 PM
bell housing same?
Title: Re: engine trouble
Post by: smwwoody on February 19, 2015, 02:54:59 PM
There are interchangeable flywheel housings on the 6bt
Title: Re: engine trouble
Post by: Dave Shepard on February 19, 2015, 05:01:37 PM
Check to see if the front timing covers and motor mounts are compatible.
Title: Re: engine trouble
Post by: Maine logger88 on February 19, 2015, 06:39:49 PM
You may want to swap in the pump injectors and cam from the skidder motor to the dodge motor I'm pretty sure the governor is setup different than the pickup and I could be wrong on the cam and injectors but it's a thought
Title: Re: engine trouble
Post by: kiko on February 19, 2015, 08:59:10 PM
My advice would be to use the truck engine just like a long block.Long block on truck engine is identical to the engine in the frank.  Buy a gasket set less head gasket and swap it out.  Using  original fuel and exhaust will eliminated any need to make custom linkages and exhaust.  By swapping in original pump horsepower remains the same so no need to worry about increased horsepower causing drive train issues.  The only difference I can think of in the 5.9 12 valve base engine is some have pipe plugs in the oil galley and others have straight thread o ring plugs.  You will also have to swap out the rear main because if I am not mistaken the frank has a wet convertor and a double lip rear main is required in this application.
Title: Re: engine trouble
Post by: treeslayer2003 on February 19, 2015, 09:04:02 PM
Quote from: kiko on February 19, 2015, 08:59:10 PM
My advice would be to use the truck engine just like a long block.Long block on truck engine is identical to the engine in the frank.  Buy a gasket set less head gasket and swap it out.  Using  original fuel and exhaust will eliminated any need to make custom linkages and exhaust.  By swapping in original pump horsepower remains the same so no need to worry about increased horsepower causing drive train issues.  The only difference I can think of in the 5.9 12 valve base engine is some have pipe plugs in the oil galley and others have straight thread o ring plugs.  You will also have to swap out the rear main because if I am not mistaken the frank has a wet convertor and a double lip rear main is required in this application.
do they all have a wet converter? i ran into this once and thought it was really strange.
Title: Re: engine trouble
Post by: kiko on February 19, 2015, 09:12:47 PM
I can,t say that all Franklins had a wet converter ,  but I can say all the ones I have come across did.  But I have no experience with the Q series, just the 170s and c7f.  Cats also have a wet converter.
Title: Re: engine trouble
Post by: barbender on February 20, 2015, 12:04:20 AM
I knew some more experienced advice would come along ;) Kiko, where in middle Georgia are you located?
Title: Re: engine trouble
Post by: smwwoody on February 20, 2015, 09:54:06 AM
Thanks kilo
You confirmed what I was thinking. Both of my Frank's have wet converters. I am glad you mentioned the rear seal. I knew it but would have forgotten about it. Both motors have the same turbo so I am going to use the one from the truck motor. It is in better shape

Thanks
Woody
Title: Re: engine trouble
Post by: kiko on February 21, 2015, 09:24:22 PM
Bartender,  I am about 50 miles south of Atlanta.
Title: Re: engine trouble
Post by: barbender on February 21, 2015, 09:32:38 PM
Quote from: kiko on February 21, 2015, 09:24:22 PM
Bartender,  I am about 50 miles south of Atlanta.
Forsyth by chance?
Title: Re: engine trouble
Post by: kiko on February 21, 2015, 09:36:46 PM
Yes. Good guess or do you know me.  There were some ponsse machines around here for a while that I did repairs on.
Title: Re: engine trouble
Post by: barbender on February 21, 2015, 11:40:48 PM
Kind of maybe sort of ;D PM sent.