Fox .40 DDD
 

Hello All
I just purchased a Fox .40 diesel off ebay. While searching for info on this particular model, all I could find was a Engine Review on the Fox Quikee 500 which looks very similar except that mine does not have the "Q" under the "FOX" logo. Does anyone have experience with this model? Any info is most welcome.
Joshua

RE: Fox .40 DDD
 

This engine dieselized will turn a barn inside out:D

RE: Fox .40 DDD
 

I seriously doubt that the Quicky .40 would work as a Diesel, it won't even idle in stock form at least not below 4,500 rpm. The Q's throttle is mostly an on and off switch.

RE: Fox .40 DDD
 

Hobbsy he may not have the quicky the regular 40 came in both r/c and c/l martin

states no Q on the engine

RE: Fox .40 DDD
 

He has a regular Fox .40 engine. Likely the large frame version. I don't remember DDD making heads for the small frame .40's.
They make excellent deisel engines.
My Fox .45 turns a 12x8 prop with authority too.

http://www.youtube.com/watch?v=WTp3Lkr9pSw

RE: Fox .40 DDD
 

He definitely does not have a Q. they came with a pipe that wasn't much under a foot long and its sound would drown out a 747.

RE: Fox .40 DDD
 

Hobbsy and Earl: thanks for your input. I tried to upload pictures but got some strange "500 - Internal server error" message (whatever that means - I have no clue). The engine is NOT marked "Q" so I believe it is a regular 40. I will try to shoot some new pictures and upload them.

RE: Fox .40 DDD
 

Trying to load new pictures. No, getting same 500-Internal server error???????????????? message.

RE: Fox .40 DDD
 

They would have never put a diesel head on a Quickie .40 engine. It might work, but the nature of the engine was all out racing performance. it would not be useable as a sport engine. it is like trying to drive a dragster on a busy city street with stop and go traffic.
You have a Fox .40 engine. it will work fine as a diesel.

Pictures can be a problem. You need to make sure the pictures are saved as a JPG or JPEG image format. Resize the pics to 640x480 as many people can't view them if they are larger and most forums will block images that are too big as well. Then you upload the pics to a photo service such as Photobucket for example. Next copy the link from the photo service and use the picture icon in the toolbar above (insert image). Then the pics will appear in the message you are posting. I think RCU has a minimum number of posts you have to make before you can upload posts to RCU.

RE: Fox .40 DDD
 

Anothrer program is the Picture resizer, cut them down to small, "email size" and they will load in about 2 seconds.

RE: Fox .40 DDD
 

OK, the pictures are in JPG format and resized to 640X480. Trying to upload again. The crap is not working.

RE: Fox .40 DDD
 

Where are you trying to upload the pictures too?

RE: Fox .40 DDD
 

To this forum of course.

RE: Fox .40 DDD
 

OK, I typically upload my pics to my account on PhotoBucket and then copy the URL link from there to use here in this forum.
I think as a new member you are considered on probation for 100 posts or so, maybe even a time period too. Then you can upload up to 100 photos into the photo gallery. I think they restrict it like that to block the spammers and the trolls that are constantly trying to screw up things.
I had that same problem a long time ago, when I first signed up too.

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RE: Fox .40 DDD
 

N99JK I upload the the photos to my kodak, or sony pix program then pull from that file to load martin

RE: Fox .40 DDD
 

Why wouldn't a quick racing engine work with a diesel head?

I have read about high timed MVVS engines that have diesel heads on them and they work fine in control line stunt models.

Is it assumed that this engine is to be used in an RC model?
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RE: Fox .40 DDD
 

The Parra's and other T/R race engine derived units run like scalded cats

RE: Fox .40 DDD
 

The Fox .40 Quickie engine is a all out racing engine. The way they timed the engine and setup the carb means it is eitherWOT or off, no in between on the throttle. So yes you could use it as a diesel, but it is not a sport engine. even putting on a smaller bore carb won't help as the port timing is still fairly hot. So if you were using the Fox Q engine for racing then go for it. But the hot port timing may cause problems with allowing too much fuel to flow into the combustion chamber. Since they set it up for methanol then the ports might be too large to run it good as a diesel. The carb's inside bore is as large as they could go with it too. Some guys went with a smaller bore carb as the engine had trouble drawing fuel in the turns. But I know of no one who has tried it as a diesel so far, so it is all theory.

I have a Parra 2.5cc AAC diesel engine and it does run as good as my glow 2.5cc engines, maybe better than some too. So yeah one can get a diesel to run as fast if not faster than some other glow engines. I have a MVVS 2.5cc diesel as well, but I havent' run it yet.

RE: Fox .40 DDD
 

Hey Earl, on the other end of the suck, squeeze, bang and blow cycles a lot of fuel would simply blow away in the wind. My Fitzpatrick .61 is timed for 17,000 rpm, while it will run as a Diesel it requires a lot of fuel and a small prop. I sleeved the carb to try to reduce the blow back but it just limited the performance instead. The head by AJC is a work of art looking nearly identical to the glow head.

RE: Fox .40 DDD
 

You have a standard big case 40 which is just like the 45 but with a smaller piston. runs great with a 12 X 6 at about 9 to 10,000 Rpm. If you need any further help just give us a call. 615-625-3778

RE: Fox .40 DDD
 

Funny! I remember asking Bob Davis about a diesel head for the Fox .40 at an R/C show in Maryland years ago and he said the bottom end couldn't handle it. So I made my own. Runs great and is on a stick trainer for the nephew.

http://www.rcuniverse.com/forum/m_16...tm.htm#1696197

Max

RE: Fox .40 DDD
 

Max
What prop are you running and what rpm do you get? That's a great looking diesel Fox 40.
Joshua

RE: Fox .40 DDD
 

Max, I know why Bob said that, I bought a new crankshaft for a big case .40 about 10 years ago and they sent me the crank for a small case .40, the big end rod bearing had about 1/16th" clearance of more. The crankpin on the crank they sent me was tiny by comparison.

RE: Fox .40 DDD
 

The small case Fox .40 would not work good as a diesel because the crankshaft is too small, especially the crankpin.  But the large case .40 would work good as it has a much stronger and larger crankshaft in it. The large case .40 engines were also made in the .45, .46 and bigger .50 sizes too.

RE: Fox .40 DDD
 

Earl, I still have that small 40 crank, Sharon sent me a new large crank for free. Picture #1 is big 40 rod on small crank pin, picture #2 is big rod on big 40 crank, picture #3 is both cranks. rod on backwards in the pictures, sorry.