Mallory YLM554CV Distributor

what yr engine, and type of drive/tranny do you have?

if the gears don't match up then it's not going to work unless you replace the gears ar you sure it's not a DV model?

where are you located, can you take pictures of both, what was installed and the new one?

can you get a model number off of the old dist.

Do you have a 1:1 BW velvet drive and a RH prop? or do you have a 1.23:1 PCM with a RH prop.

mallory marine

page 134

So what your saying is to chang the gear like the one i have on my old dist' ?

forget the last answer - did not see yours...
How can i check what engin i have? ask ford ?
I gave CorrectCraft the VIN # of the boat and they said i have a 351w installed in it.but who knows what i have now....
thanks for your patiant man...your o.k.

thanks 79
Tomorrow i will check this

i have the PCMsvcmanual pdf and ther is adiagram on how to know what kind of engine you have by the model number and it looks like i have 351W,but now im thinking maybe one of the owners of this boat changed the engine and moved the metal part with the engine details...
This is the details i have on the angine

Pleasurecraft - v8 marine engine

Model - PRD-WR-R10

Serial - 22528

Engine no' - 2c449aa-d22-2d22h

Hi Yanivsai

Looking at the pictures in your other post, you most definitely have a 351W and you also have the wrong gear on the new Mallory distributor.

I most definitely have a Prestolite right in front of me that has the same 7008 AS number and it came out of a RH rotation 351W engine and has the same gear as your old distributor.

I'm not too familiar with Mallory stuff, but I do know that your gear is wrong for your engine's rotation.

We'll let 79 nautique tell you what to do about gears for the Mallory.

keno

Hi Yanivsai

Earlier you said "Engine rotation: When I look at the engine from the front of the boat backwards, all belts turn counterclockwise"

This tells me you have a reverse rotating engine and you need a distributor with the gear cut the same way as your old one. What you have is a distributor for a normal rotation engine.

If you search the posts you'll find out lots of info about reverse rotation engines and what parts are different. What is directly affecting you right now is the camshaft and distributor.

All you need to do is swap distributors for one for a reverse rotating engine or get a new gear for the Mallory you already have.

Due to the cam gear cut and the distributor gear cut, no matter which rotation engine you look at, the distributor rotor rotates counterclockwise when looking from above.

It's confusing but what you need is the proper gear on your distributor and you'll be all set.

I have no idea if you can swap the Prestolite gear onto the Mallory shaft or not.



keno

Model - PRD-WR-R10

The     "P" means it's a Pleasurcraft
The 1st"R" means it's Right Hand rotation
The     "D" means it's a 351
the     "W" means it's a Warner Drive
the 2nd"R" means it is a reverse drive
the 3rd"R" means it's a right hand prop
the    "10" means it's direct drive (1:1ratio)

Now the 351 has a 5/16 hex oil shaft. Make sure the one you get is for a 351. The 302 has a 1/4 oil shaft. In short, the 302 shaft slot is too small and won't work.

You've got the same motor I've got and I just replaced my distributor. It was a great learning experience...

hi 79
my prop is rh for sure

79
If you look at the pics of his new and old Distributo gears, the new one is for a standard LH motor. His original is a RH. It does look like the gears are probably interchangable. I'm with you, I think he can swap them.

Hi Y'all

I think there are a couple of other possibilities here for mistakes.

When I look up a YLU554CV on the Summit website it is for a normal rotation engine.

Meanwhile they list the YLU554DV as being for a reverse rotation engine with an opposite rotation helix.

They also list the YLM554CV(what yani has right now) for standard rotation and don't list a DV version of this at all.

And then 79 nautique has a YLU554CV, maybe it's a CV with a reverse gear installed on it to make it work right. Maybe it came that way from Summit when he told them what he needed.
Maybe you should verify it says CV on it and not DV.

There are others here who agree that the old one is for a rev rotation engine and the new one is for std rotation

Somebody is wrong here, beats the snot outta me who is, but it's obvious that yani needs the gear for the other direction.

keno

you guy's don't know what your talking about and obviously you didn't look at the mallory marine link I posted where it clearly states what model is what and I didn't swap gears on mine. Since Keno seems to have all the answers figure out the bullsh*t on your own.

If you look at the picture summit has of the YLU-554-CV model the gear is like the one on your old dist. And if you look in mallory marine's catolog they list the ylm-554-cv as a RH. So I don't know where you got your dist or if someone has modifiyed it or not. I know what is in mine YLU-554-CV and it was installed without any modifications and works fine, I have talked directly with mallory " the manufacturer " and their catolog supports what I have stated reguarding the correct model and application. So do what you want, something is wrong and it's not my information that is wrong.

I agree with your statements regarding the helix angle, and the picture posted in summit for the CV version the gear matches what he pulled out, but the new one he has doesn't match the picture listed in summit for the CV version. My point is the model number I gave is right, what is in question is where did he get the dist and if there was a packaging error if it was brand new from summit. If it was from summit then I whould be asking why the picture they have posted doesn't match what they sent Yanic. Worse come to worse he should be able to remove the gear off his old unit and install it on the new unit and be good to go.