Engine rotation

[jordan]

I'm a little embarrassed to ask this question. I removed the chrysler 318s from my boat, ordered two new long blocks and removed all the components off the old engines. That was a few months ago and I thought I had everything mark well, now I'm starting to think I didn't mark them good enough. Which engine has the distributor raised up, what rotation is that engine? I have that engine on the stand and have most of it assembled just want to be sure of the rotation so I get the right transmission on it. Another embarrassing question is about the raw water pumps and alternators. Do they matter which engine they go on? Are they affected by the rotations of the engines?

Glad this site is here and for everybody's support, thanks in advance.

One of these times I'll put some pics up of the renovation of my F-32.

Jim

[larryeddington]

http://www.trojanboats.net/wforum/viewt ... ion#p55944

Go to the above url and see pic I posted looking down the distributor shaft showing what the gears in each engine looks like. The reverse starboard engine has the spacer under the distributor. Distributors rotate the same direction but with different firing order.

[jordan]

Thanks Larry,

That's exactly what I was looking for! I knew you guys wouldn't let me down. I feel a lot better now. Now to figure out the alternator and raw water pumps.
Anything else I should be thinking about?

Thanks guys.

[larryeddington]

alternators, mine did not make any difference for the old Chrysler ones.

Sherwood G5,G6 and G7 water pumps will work on either engine, but mount different directions in other words 180 degree flip. Look up Sherwood pumps and you can find how to determine which way the impeller must turn to produce correct results. I did mine wrong first time and they pumped bubbles out the sea cock then I looked it up.

Starters need to be on the correct rotation engine as well. Which is by model numbers, I have a spare set with the model numbers and can get them for you.

Transmissions, if paragon, can work pump wise on either engine but the gears cannot run using reverse gear as forward it will not be strong enough, so generally they must be used on proper turning engine, unless a different propeller is used, confusing, yes, but just use the correct one. Some of the paragons have a red arrow sticker on them showing revolution and the model number will give a clue.

[jordan]

Again, thanks Larry

My transmission are marked for rotation, velvet drives. The water pumps I suppose could be figured out by which way the engine will turn them.
The starters might be a challenge, could put a battery to them and see which way they spin.

Really appreciate all the help, Jim

[jordan]

Good morning All,

I woke up in the middle of the night thinking about the timing and putting the distributors back in. The gear that drives the distributor and oil pump can not just be dropped in can it? Because it is slotted I have only two options to its position driving off the cam, is that correct? If so, would the motor have to be at top dead center on number one cylinder and then the drive put in so when the distributor is installed it would be pointing to number one cylinder?

I hope that made sense!

Thanks, Jim

[jordan]

Ignore the last post!

I just read a past post from Larry that explained how to line up the gears. Now I just need to make sure I know which cylinder is number 1, are they the same for both motors even though they have a different firing order?

Again Thanks everybody, Jim

[Big D]

Yes, same cylinder on both engines is #1. When facing the front of the engine, first cylinder on right. The cylinder numbering is all the same, just the firing order is different.

[jordan]

Thanks Big D,

Larry, I didn't see any obvious mark on the drop in gear, do I have to remove it to see it.

Thanks

[mikeandanne]

Hi there Jim---the accepted procedure goes something like this---rotate the crank to get #1 cylinder piston at top dead centre firing,watch the valves,the #1intake valve will open then close and you will see the mark on the balancer come around to the top,stop when that mark is about 3-5 degrees before tdc.now you can instal the oil pump drive gear in so that the slot for the dist. tang is facing from the front of the engine to the rear----that is it------now if you do not disturb the engine you can instal the dizzy now and turn it so that the rotor faces wherever you want # 1 to be on the cap, lock it down-----done this way you will not be far off on start----same for both engines just remember to keep in mind the direction of engine rotation------that slot thing was just to get the dizzy in a certain orientation for vac advance and #1 on the cap to be in a certain place,actually the engine does not care so long as #1 fires at the right time----geez I hope this helps a bit just take it a step at a time---Mike

[jordan]

Thanks Mike,

All of this is great help, I feel a lot better putting the motors together now.

All you guys are awesome!

Thanks, Jim

[larryeddington]

"tang is facing from the front of the engine to the rear" and that will work, however the Chrysler manual calls for putting the slot pointing to the first intake manifold bolt by the #1 cylinder. Both will work but that is what Chrysler says. It worked on my engines. They still had to be timed with a light to set timing for sure. Perhaps pointing directly for or aft will be approx. the 5 degree advance but I would check it with a timing light anyway.

[jordan]

With all the advice and help from the Trojan Forum, here is the starboard motor just about ready to come off the stand. It's a new long block with the old parts and a few new parts installed.

Thanks Guys!

[mikeandanne]

Good stuff, Jim,looks good, one thing I always enjoyed was putting engines together then hearing them fire up, lots of satisfaction there.
---like the valve covers ,never seen ones with chyrsler marine on before---Mike

[larryeddington]

I have some aluminum plates that go on the exhaust manifolds that state Chrysler. They are a copy of an original I had and a graphics guy made them. But as you said never seen the Valve Covers even on the Super Bee version. Something new and neat. I paint mine in black crinkle paint.

The ones shown here are way cool.