20hp to 29hp engine swap in progress

[Rock Doctor]

I've been talking to this guy for a bit (nice guy), and he has decided to post vids of his engine swap as he goes
This is his second vid (I have not seen it yet, damn Dial-up), his first vid detailed the mods he had to make for his alternator bracket.

Vid 1


Vid 2


Vid 3


Vid 4


Vid 5


Vid 6


Vid 7


Vid 8


OOPS, missed this one
Vid 8.5 ;-)


Vid 9





I'm still waiting on quotes for the 27hp Carbed option, and really don't know which route I'm going to go with. The 29 DFI is tempting, but the 27 Carbed is probably easier to diagnose/work on if I have problems in a remote location

RD

[Roger S]

That's great to have someone do it first. Looks like a lot of work. I'd want to do a lot of measuring with the old engine in there. That's one thing I was very grateful on my response engine, just take it out, modify, and re install. The large displacement of the 27 or 29 should have lots of low rpm torque for the way you load the conquest.

[mike bar]

I think your friend should give himself a little credit there. He did a great job. I see where his concerns are going with this section of vid. and I'm sure he's prob. thought of this but I'm going to ask anyways,Is the center of the shaft from the base on the old engine the same height as the new one. If not, the center from clutch to clutch will change slightly. Again,it's not my intention here to insult anyones intelligence here. It's just my way to be always thinking cautiously.
Mike

[Rock Doctor]

I think your friend should give himself a little credit there. He did a great job. I see where his concerns are going with this section of vid. and I'm sure he's prob. thought of this but I'm going to ask anyways,Is the center of the shaft from the base on the old engine the same height as the new one. If not, the center from clutch to clutch will change slightly. Again,it's not my intention here to insult anyones intelligence here. It's just my way to be always thinking cautiously.
Mike

Yes that has come up, it's .3" higher on the new engine.

[Rock Doctor]

I've added VID 5 above .

[Rock Doctor]

Added Vid 6 above ^

[mike bar]

I like this guy's humour, he cracks me up Great Job RD

[Rock Doctor]

I like this guy's humour, he cracks me up Great Job RD

Yes, he seems like quite a comedian, hope to meet him some day :-)


RD

[Rock Doctor]

added vids 7 and 8 ^

[JohnF]

For the curious:
FD620D specs (pdf)
FD750D specs (pdf)
FD791D specs (pdf)

From the pics it looks to me that a person could choose an aircleaner much shorter than the one shown in the vids above - enough to not be a concern.

... Is the center of the shaft from the base on the old engine the same height as the new one. If not, the center from clutch to clutch will change slightly. ...

I know that I do not have enough information to determine this. (Mike may.) If we assume that the line through the shaft centers is parallel to the surface of the bottom of the engine then it is true. If, for example, the engine shaft of the FD620D is half the delta below the parallel line then the shaft to shaft distance remains the same post swap. If the engine shaft is further below than that, then the shaft to shaft distance actually decreases.

Does anyone know the the distance center-to-center of the shafts and whether the shafts are parallel to the engine bottom? We might be able to make up the difference in how you drill out the engine mount holes.