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Post by emagt980two on May 22, 2020 21:08:13 GMT -6
Today I bought a beautiful en450 and I had some problems way to home.
First, the previous owner put water instead of coolant in the coolant system 🙁 and the water started
boiling in the way. The good thing is that I could park the bike in a car shop and I bought a radiator cap (It's 13psi) and a liter of coolant. Then, once I filled up the litter of coolant in the bottle and changed the rad cap, the coolant didn't boil anymore and I could bring the bike home. BTW She has pod filters. And the bike is also smoking through the crankcase vent
Any ideas about these problems?
BTW I'm from Mexico so please excuse me if I didn't write the right words lol.
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Post by eaglerider on May 23, 2020 5:59:32 GMT -6
Smoking from the crankcase vent, indicates that possibly some overheating of parts. I would drain the oil, and remove the bottom crankcase cover to check the oil pickup, to see if is is clogged up. You will need a new gasket, when putting things back together. This is not a real easy job to do, the "oil pan" is difficult to get to with the engine in the frame, unless you have a platform to get the bike high enough off the floor.
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Post by emagt980two on May 23, 2020 18:32:34 GMT -6
Thanks Eagle
So if oil pickup is clogged up? It can be a cause of overheating and that's why crankcase is smoking? In fact, the crankcase is smoking when the bike is cold or hot.
On the other hand. Today I ran the bike again and she is still overheating (The coolant was about boiling again). It takes around 10 minutes to overheat. Do you think I need to buy another radiator cap? This one says 13lbs. I was thinking on check the thermostat too.
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Post by eaglerider on May 24, 2020 6:35:05 GMT -6
Radiator likely clogged...Vet smokes without engine running? you do mean after riding, right Impossible for it to be smoking when not running/riding. if the pickup screen is clogged, that means the oil in the crankcase/transmission is not being sucked up into the engine and transmission. That means nothing is receiving any lubrication, causing the internal components of the engine to get hot, and likely receive damage to the bearings, etc. too much of that, and the engine and transmission will be destroyed.
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Post by knoizy on May 24, 2020 7:33:24 GMT -6
Highly unlikely you've got a single (or simple) fault that will be fixed with a new part. As mentioned this bike needs stripping down to check the oil and cooling systems or your next ride could be its last. Not something to attempt without a decent garage and tool compliment I'm afraid.
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Post by emagt980two on May 24, 2020 10:08:31 GMT -6
Yeah. I meant vent smokes once the bike is running. It smokes every time while running. It's good idea to use battery acid to clean the rad?
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Post by emagt980two on May 28, 2020 0:12:13 GMT -6
Today I gave a look into the oil pick up screen. The good new is that it was ok. The oil pick up screen was totally clean and also the oil was clean. So after check that, I replaced the oil and did a compression test. For my bad luck, the tester showed 30-40 psi on both cylinders. So I suppose I have bad piston rings  . After all, I started the bike and she ran too badly. The bike was blowing compression from the head and she had really poor running. Another thing is that the spark plug holes threads are stripped! So I think It could be also the problem |
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Post by eaglerider on May 28, 2020 6:01:34 GMT -6
Oh, man...not good on spark plug threads stripped. That can possibly be repaired, using heli-coils.....worst case, replacing the head. The stripped plug threads could be part of the low compression. Sounds like the previous owner did not really take good care of the bike, or did not know how, sad.
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Post by emagt980two on May 28, 2020 11:22:25 GMT -6
Yeah, the previous owner didn't take good care of this bike. I will look for a head this week. And probably I will buy new piston rings too. I don't want to work twice  |
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Post by eaglerider on May 28, 2020 14:16:32 GMT -6
Don't forget a engine gasket set...you have to pull the jugs, too. Now, there is an alternative, as parts art expensive foe this bike, and that is if you happen to find a good EN 500 from a Vulcan 500, with belt drive (1990-1994-5). more power, bolts right in , tho you have to use a few things from the 454, to get the 500 to run in the 454 frame/wiring harness.
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Post by emagt980two on Jun 10, 2020 18:05:36 GMT -6
Today I got parts from an ex500 engine. I got the head and the cylinders with pistons and rings. Will these parts fit in? Another thing that I noticed was that the head gasket had some drops of water. The head gasket isn't bent and it appears to be in good shape. May I use it again (using Shellac)? Or better to buy new gaskets? The thing is that it's really difficult to find gaskets here.
BTW thanks for the help !
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pya977
Junior Member
Posts: 300
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Post by pya977 on Jun 11, 2020 1:13:56 GMT -6
use a new one
why go to all the trouble of rebuilding your engine then have to start all over again for 1 gasket
or do you feel luck punk "dirty harry"
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Post by emagt980two on Jul 10, 2020 8:20:46 GMT -6
Hi dudes
I finally got the new gaskets this week and yesterday I assembled the engine. The thing is that the engine doesn't start. I mean it cranks but not start. I've done valve adjustment and I've checked for spark. Everything seems to be good. I have to mention that I've put the ex500 cylinders and ex500 head into the 454 transmission. So I think I have to get and ex500 stator and ex500 flywheel too D:
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Post by emagt980two on Jul 10, 2020 8:32:12 GMT -6
 BTW when "EX" and "IN" camshafts marks are aligned (as the manual shows). The timming mark "c" is in that position. It's not totally in the middle |
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Post by Blaine on Jul 11, 2020 4:26:14 GMT -6
Hi dudes I finally got the new gaskets this week and yesterday I assembled the engine. The thing is that the engine doesn't start. I mean it cranks but not start. I've done valve adjustment and I've checked for spark. Everything seems to be good. I have to mention that I've put the ex500 cylinders and ex500 head into the 454 transmission. So I think I have to get and ex500 stator and ex500 flywheel too D: Yes you do. |
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Post by eaglerider on Jul 13, 2020 6:47:09 GMT -6
I would check for spark, and make sure the coils are wired right. The stater and flywheel for a 500 will not work with the 454 wiring. The stater and flywheel are the parts that have to be changed on a 500 engine, to the 454 parts, when being put into a 454 chassis/wiring harness. The engines fire different, the 454 is a dual pick-up, the 500 is a single pick-up.
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Post by emagt980two on Jul 15, 2020 21:59:25 GMT -6
Thanks for your help Blaine and Eagle. Finally I got the bike running! I found that the coils were not wired right.
Now the thing is that the water pump is leaking some coolant trough the gasket who is between the water pump and the crankcase. This is because I forgot to put the cromed tube when I assembled the engine. So I had to take the water pump off and I changed the two gaskets. I could see that the mechanical seal is not the original one and It was a little beat worn. On the other side I afraid The oil seal is not sealing properly.
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. After all, I started the bike and she ran too badly. The bike was blowing compression from the head and she had really poor running.
