140hp chrysler engine wont go on plain.

[raycraft92]

I need help anyone... durning the summer i bought a 1987 raycraft tri-haul with a 140hp chrysler on it. we started it up for a couple of seconds outside of the water and it looked like it was running all fine. but when i put it in the water and tried accelerating i only got maybe 5mph tops. there is a stream coming out but it go. anything would help me?

 

[86 century]

Re: 140hp chrysler engine wont go on plain.

Welcome aboard
Does the eng rev up and you dont go or just bog down.
If she revs ok but you dont move could be a spun prop hub

First things to check are compretion,spark,fuel,and timing thats the order I do it.

Good luck

 

[Frank Acampora]

Re: 140hp chrysler engine wont go on plain.

Well, Many things can cause lack of power on the water. So, before we get in too deep: what is your skill level? Are you proficient with hand tools? have you done, for example, brake changes on your car?

As above, you need to go over the basics before running the engine. Test compression ratio on each cylinder, check each cylinder for spark, test the prop to see if it is "spun." Remove and clean the carbs, change the water pump impeller and fuel pump diaphragm. It sounds like a lot, but really, you would only be working a couple of hours and all the information necessary is right here on the forum.

So, For the present time, buy, rent, or borrow a compression tester and test the engine. Then see if it has spark on all four cylinders. Be certain to ground all four plugs so you don't damage ignition.

Then reply with the model number of the engine so we will know the year and a couple of photos of it with the cover on and off.

Rest assured: With the help you will get here on the forum, you will get a satisfactory running engine.

 

[raycraft92]

Re: 140hp chrysler engine wont go on plain.

yes my father owns a automotive shop so i have a couple of skills under my belt, brakes, starters, altanotors, trannys stuff like that. But it revs up but will not get up to speed so your saying that i would have to replace my water pump, gas lines and little stuff like that? sure i will post pictures and one more question. where would i find the numbers at?

 

[Frank Acampora]

Re: 140hp chrysler engine wont go on plain.

Whenever you get a used engine, assume that the water pump impeller is bad, the lower unit oil needs changing, the carbs are dirty, and the fuel pump diaphragm needs replacement. This is preventive and avoids trouble when you try to run the engine. Dirty carbs, bad fuel pump diaphragm, or clogged fuel lines can let an engine run well in the drive but under load, it will not get fuel and will "bog." A prop with a "spun" rubber hub will likewise run well in the drive but the engine will speed up under load and the boat will not move because the prop is slipping.

You need to define: The engine revs up but the boat does not get on plane: That engine should be able to hit 5000-5500 RPM at full throttle. So if you are considering it revving to 2000 or so OR if you mean that ir revs in neutral, that means almost nothing. Even an engine with a dead cylinder will rev in neutral.

So: Check compression--all cylinders equal and high, at least 120 PSI. (factory new was around 145-155) Check spark on all four plugs.

As far as numbers. Most places don't list parts for Chrysler engines HOWEVER, the parts used for early Force engines will in most cases be the same and you can find some here at the iboats store. If they don't have what you need, Google and try a couple of outboard parts sites.

That 140 is a nice engine. 2.875 stroke and 3.375 bore for 104 cubic inches.

However, Chrysler was out of the outboard engine business by 1987 so your engine is earlier than 1985. Does it have a distributor or Prestolite CD ignition?

 

[raycraft92]

Re: 140hp chrysler engine wont go on plain.

the engine has a distributor.

so what you are saying i should start with all of these items, and then if it does not work then i could call a marine machinic? i know this guy that said he will do anything on an marine engine cheaper than a marina.

i do have the chrysler outboard repair manual 1962-1984 that i bought from iboats it says it covers from 3.5-150 hp and 1-4 cylinders. also 2-stroke motors.

So you are saying i should do a big tune up on the motor, plugs, wires, fuel filter, oil, rubber hub, waterpump impeller. i already cleaned the carbs, so how much money would this coast me now if i do all of this to the motor.

how do i upload pictures to this site?

 

[Frank Acampora]

Re: 140hp chrysler engine wont go on plain.

A distributor engine puts it at pre 1979. It will have a Motorola CD ignition system.

Yes, a good "tune-up" is a first place to start. Water pump impeller costs about 30 bucks. Fuel pump diaphragm and gasket costs about 5 bucks. Lower unit oil costs anywhere from 10 up to 18 bucks depending upon brand, You can find marine grade Hypoid lube in Wal Mart and auto stores. In a pinch, you can use automobile 90 weight rear end oil but it has less antifoaming agents and corrosion inhibitors. It will work fine as long as the lower unit is not leaking.

I use cheap fuel filters found at auto stores for about 3-7 bucks.

It is always good to change the plugs at somewhere around 3 bucks each but wires need not be changed unless they show obvious damage. Same with distributor cap. Most of the time they just about last the life of the engine. Sparkplugs are Champion UL18 V or L20V. NGK BUHW can be substituted. These are surface gap plugs and the ones in the engine probably can be cleaned. Unless the center electrode is worn below the porcelain insulator, they are still good. DO NOT substitute bent electrode plugs for these.

To check for a spun hub, you remove the prop and mark the prop hub and the bronze insert. Replace the prop and run the engine in the water. If the marks have moved in relation to each other, the rubber hub is slipping and will ned to be replaced. A prop shop will do it for about 50-80 bucks. If money is that tight and the prop hub is bad, contact HMS hubs. You can buy one for around 20-30 bucks plus shipping. You should have access to a press in your dad's auto shop and the old can be pressed out. The new hub would be pressed in using soapy water as a lubricant and an old outer race from a tapered roller bearing of a suitable size.makes a good pressing cone.

The manual and the help you can get here are just about all you need to do almost any repair. Do not bother going to a marine mechanic--most will not want to work on the engine and those who will, charge a lot--100 bucks or more an hour.

Yes, there are guys like me out there who say that they will do anything cheaper than at a marina. I say that not only do I work cheaper (because I do it more as a hobby. I don't make a living from it--just put gas in my boats) but the engine will be in better condition than new (if I do a rebuild). If you decide you are over your head and take the engine to someone, make sure he is not B.S.ing you and really knows what he is doing---talk is cheap!

However, If you have done brake jobs and changed transmissions, and haven't killed a customer yet, you can do anything you need on this engine. For the most part, only hand tools are needed.

 

[Frank Acampora]

Re: 140hp chrysler engine wont go on plain.



Here is how I press in a new hub. A six ton press is more than sufficient and a two ton will do the job. Note the rusty old bearing race. This prop already has a hub in it and was used simply for a demo--it was the first one handy.

To post photos, upload your selected photos onto your computer. If the file size is larger than about 500KB, open them in paint and reduce the size. NOW: On the forum and in your post, while answering, scroll down to "Manage Attachments" and click on it. A window will open and click "add files" click on select files, then open the file in your computer It will transfer to the window. Now, click"upload files" and when finished, click on insert inline. Your photos will be placed into your reply or post.

 

[raycraft92]

Re: 140hp chrysler engine wont go on plain.



okay a six ton will do better, got it. here are the photos of my engine.

well is there anything you can tell me about it?

 

[raycraft92]

Re: 140hp chrysler engine wont go on plain.

so what can you tell me guys

 

[Frank Acampora]

Re: 140hp chrysler engine wont go on plain.



Chrysler 140, one piece lower unit and distributor ignition with electronic (electric eye and shutter) distributor and Motorla CD ignition with Motorola voltage regulator/rectifier. 3.375 bore and 2.875 stroke for 104 cubic inch displacement. Firing order 1, 3, 2, 4.

Year 1977-1979. Tillotsen TC carbs with 1 5/8 venturis. Twin fuel pumps in series. Extended shaft propshaft with a plain tailcone adapter inside the prop. You can use the Flare Washer and Tailcone (Black plastic I painted red) as shown in these photos, but if you find one on the auctions, it will be expensive. No performance loss with the prop and adapter you have now though. White prop shows the same plain metal tailcone adapter you currently have installed inside your prop.

 

[raycraft92]

Re: 140hp chrysler engine wont go on plain.

thank you for all your help frank, but without the seriel number i wont know the excact year but thanks to you its narrowed down now.

could the cabs be another problem, as in there not in sync. is there a way to test this?

how much would this motor go for in this market today. i want to know all the info before i start digging into a project, because i want to get that all done before spring.

 

[iCam]

Re: 140hp chrysler engine wont go on plain.

Here is a great "sticky" for syncing carbs.
http://forums.iboats.com/showthread.php?t=431021

 

[Frank Acampora]

Re: 140hp chrysler engine wont go on plain.

Improperly synchronized carbs can definitely cause lack of power. Read the sticky at the top of the forum: FAQs--synchronizing carbs and timing. It gives complete instructions for setting it up.

If I were to sell that engine, I would be asking 1500 and might settle for 1200 (depending upon what I paid and what repairs I did) BUT---I would mount it on the boat, include controls and correct prop, and water test it with the new owner. I would also guarantee no problems in the first season as long as it was not abused.

Real world value will depend upon the buyer but in good running condition you could expect to get 300-500 for it. People don't like Force engines and are even more leery about Chryslers. As with autos, it is ironic that you can get more for parts than the running engine is worth.