| Author |
Message |
    
andreh
New member
Username: andreh
Post Number: 1
Registered: 11-2005
| | Posted on Tuesday, November 08, 2005 - 01:16 pm: | 
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Hello,
New to the board and already a question: could anyone be so kind to provide me with the tuning specs (especially timing) for a 70-ish Chrysler 440 marine ??
Thank you for your attentiuon |
eddie
Senior Member
Username: eddie
Post Number: 84
Registered: 04-2003
| | Posted on Tuesday, November 08, 2005 - 07:23 pm: |
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12 degees before top dead center. Spark plug .035. Cars with those engines were unusually hard on plugs. Platinium spark plugs helped remedy that situation. In recreational boats that might not be an issue. |
e_l_reid_sr
New member
Username: e_l_reid_sr
Post Number: 1
Registered: 01-2006
| | Posted on Monday, January 23, 2006 - 06:03 pm: |
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WHERE CAN I FIND A 440 REVERSE CAM? |
tahorover
New member
Username: tahorover
Post Number: 1
Registered: 01-2006
| | Posted on Thursday, January 26, 2006 - 01:26 pm: |
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Used only , I've spent months looking for a new one. I even tried to spin the cam standard rotation and the crankshaft reverse rotation with a two gear drive. It changed the firing order. The gear set is from a Chrysler 413HD industrial engine.  |
e_l_reid_sr
New member
Username: e_l_reid_sr
Post Number: 2
Registered: 01-2006
| | Posted on Thursday, January 26, 2006 - 02:13 pm: |
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if no new cam, where can i find a used cam for a reverse marine 440? {TAHOROVER} when you added the gears, was the firing order correctable or the motor never run right after that? [ elreidsr@netzero.net] |
tahorover
New member
Username: tahorover
Post Number: 2
Registered: 01-2006
| | Posted on Thursday, January 26, 2006 - 02:31 pm: |
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Used cams are tough but not imposable to find.I have seen two on e-bay in the last five years and sold both for ~$300.00!
I tried a few different firing orders with the gears and had no luck. I had a few engine engineer's tell me it was possible to make it work, but it will take a great deal of math and a few hours with a cam degree wheel. I had no luck finding a 413HD RR cam or any specs. Very few were built.
I did find a company that would grind one from solid billet for 1200.00 and require a 350.00 set of roller lifters, but I went the cheap route just changed my Arabian's 440 to automotive standard rotation. |
e_l_reid_sr
New member
Username: e_l_reid_sr
Post Number: 3
Registered: 01-2006
| | Posted on Thursday, January 26, 2006 - 03:15 pm: |
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tahorover- did you just change the rotation in the trans? |
tahorover
New member
Username: tahorover
Post Number: 3
Registered: 01-2006
| | Posted on Thursday, January 26, 2006 - 03:38 pm: |
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Yes I had to flip the oil pump in the trans. It has a Paragon PV300, and a Velvet Drive will be the same. I also had to buy a left hand prop with the rotation change. You can remove the distributor thrust collar and run a modern distributor as well She puts out about 500 hp  |
mrpos
New member
Username: mrpos
Post Number: 1
Registered: 06-2006
| | Posted on Sunday, June 04, 2006 - 09:41 pm: |
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I've used these people with great results!
http://www.deltacam.com/services.php |
Michael Compton
Visitor
| | Posted on Monday, October 23, 2006 - 10:10 am: |
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Hi, the revirse cam and corasponding gears shouldn't be a problem. Sends your distributor in revirse rotation which is not a big deal either. the firing order 1-8-4-3-6-5-7-2 is used on the Dodge/Chrystler 413HD-3. Take out #1 plug, put finger over plug hole tightly (after disconecting the power to the coil), turn over motor until you feel pressure building (stop). Use a long screwdriver to feel piston through plug hole and rotate crankshalft until the piston is at the top of cylinder (stop). Look at position of rotor and mark. You have found position #1. Note dist rotation and follow firing order above. This is assuming your cam-gear and cam are a set (both revirse). |
Michael Compton
Visitor
| | Posted on Monday, October 23, 2006 - 10:30 am: |
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Hmm, an aditional thought here. 413HD motors were set to 5deg. BTDC. For your 440 you should also make sure that when your #1 pistion is comming up on its compression stroke that both valves are all the way closed. Otherwise you will need to change where the cam-gear meshes with your crank-shalft gear. If just changing the gears a cog or two won't remidy things you will need to drill a new alignment hole for your cam in the cam gear (which is where that degree wheel is handy). |
jimmer
New member
Username: jimmer
Post Number: 1
Registered: 10-2009
| | Posted on Friday, October 09, 2009 - 12:21 pm: |
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Has anyone a complete 440 crysler marine engine winterizing check list? It's my first year with this engine and I don't want to miss draining anything |
