Hi, I have something that maybe you can help me out with. got an 89 hijet. aside from carb issues it was running fairly well untill today.driving up an incline when it lost power and then shut off on its own. Cranked it back up with not much trouble and continued in 2nd gear hi. Had it floored and the rpms not building. Seemed to clear up and then died. Try to crank but nothing. Makes a different noise while cranking like its not catching or lost compression. Also needs a water pump.. Any suggestions? Thanks!
Hi, if you didn't boil the water out of your engine or if radiator is still full then the water pump is not related unless it is locked up and dragging on the engine. I always suspect water in the fuel,carb,tank if I loose power and runs bad after a hill climb. Water moves around and can get sucked up under those conditions. Does it run with starting fluid? An old trick for starting diesel engines works with these too and is easier on the engine, pour small amount of gas on a rag and cover the carb with it while you crank, just be careful. If it starts OK with starting fluid then I would look for water in the float bowl, We need more info like spark and starting fluid results and how old is your cam belt, did it jump time, etc? When you say try to crank but nothing, to me that means it didn't turn over at all, is that what you mean or do you mean it didn't start? Lost compression is nothing like not starting. No compression will be faster cranking because of no drag on starter. tom
Please explain whining starter, dosent turn over motor, dosent engage at all or what? Can you do a compression test? A timing belt can slip at any time! Take timing belt cover off and check the timing marks.
When I bump the key in gear it will lunge forward. Starter turns with zero resistance. Thanks for your input! Keep it coming
Could the belt have slipped going up the incline? How do I go about checking the Timing? Just seems the starter has no resistance in neutral
Can the timing belt actually break? Sorry for all the questions and imperfections? Don't have internet access and using phone internet
Yes it can break or loose some teeth and get off timing. Its under the other belt and under a cover. Remove cover and look at belt, this is probably an interference engine so you might have bent a valve if it is off timing. Someone else needs to tell you how to time properly caus I dont have that with me now. If you see its off timing DONT try to turn it over with the starter until you know the timing is right again with a new belt! tom
Any advice on how to check the valves for breakage or bending I just got this truck and I'm still pretty green
Just make sure the timing is right and then try to start it. If it runs ok then ur good but if it is weak then remove main spark plug wire and crank, if starter makes all same sounding compression strokes then your probably ok but if it makes 2 strokes and 1 that sounds different (usually faster) then you have a bent or burned valve. This is a good fast way to test any engine for a burned or bent valve. You can use a compression tester as well. You should be able to search the forums for timing procedure. tom
If it is out of time, it is possible for the valves to be open on compresion stroke. Also i would stay away from starting fluid because it will kill your rings. Check your timing then your compression on all cylinders. If you dont have equal compresssion across the cylinders then its time to pull the head.
The answer to your question is yes on the valves, and starting fluid is not good for your engine but I still use it and thats why old timers use gas on a rag over carb intake, its easier on the engine. Remember that an instant valve test is the starter noise, is it even on all 3 cylinders as it turns over or is there 1 that sounds faster than the rest. The starter noise pitch is a good test for valves. tom
Yes the gas on the rag is alot better. It even works great on diesel engines. From my experience if you use ether or starting fluid it will get to where it wont start without it. We have farmed and had heavy equipment for about 32 Years and we ruined some nice equipment and trucks when we started out.
Do you have the bolts out yet? If so you may have to heat it a little. Not sure about mini's but on some of our new engines we have to heat the dampener then tighten the bolts down for a force-fit. If you haven't got the bolts out they may be torque-to-yield bolts and very tight.
Broke my 18mm box end wrench on it... anyone know if it is reverse threads underneath it now so let me know thanks y'all!
Just pulled the valve cover and valves appear to be straight. I guess I will wait for my timing belt to come in and check compression... still having a hard time getting my timing marks lined up. By rotating the camera in correct position should I be able to move the crank by hand?
