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[quote=”Monkey wrench” post=107583][quote=”boostedbox” post=107567]Well, by “it goes crazy” it generally acts like its running out of gas more or less. It starts missing really bad. It will keep running most of the time, but only at idle. Will not take fuel. And I have the hood off with a FPGauge connected inline and it doesn’t change. So it is getting fuel. If I turn it off and start it back up 90% off the time it will clear up and run better for a minute or two. ( literally) Then sometimes I can drive it for miles without a problem. The other night it ran like it should for quite a while. That was a first. Had plenty of power, no misses. Yes, it needs a complete tune up. But I’ve done the balance test by pulling the injectors one at a time and they each caused about the same RPM drop. I sprayed pretty much everything with water at night and didn’t see a spark one. I’ve never had a sensor go bad on a car, so I hate to blame one,(other than an oxygen sensor or two) especially by the condition a few of these connectors are in, but messing with the air flow sensor seems to cause improvement sometimes. Are these symptoms something it could do? Thanks for your relies guys.[/quote] take out the ignition coils and inspect the spark plug wells for oil…I had that happen once because of a bad gasket.[/quote] whoa! nm just seen that your Nissan is an 87 lol….sorry bout that
[quote=”boostedbox” post=107567]Well, by “it goes crazy” it generally acts like its running out of gas more or less. It starts missing really bad. It will keep running most of the time, but only at idle. Will not take fuel. And I have the hood off with a FPGauge connected inline and it doesn’t change. So it is getting fuel. If I turn it off and start it back up 90% off the time it will clear up and run better for a minute or two. ( literally) Then sometimes I can drive it for miles without a problem. The other night it ran like it should for quite a while. That was a first. Had plenty of power, no misses. Yes, it needs a complete tune up. But I’ve done the balance test by pulling the injectors one at a time and they each caused about the same RPM drop. I sprayed pretty much everything with water at night and didn’t see a spark one. I’ve never had a sensor go bad on a car, so I hate to blame one,(other than an oxygen sensor or two) especially by the condition a few of these connectors are in, but messing with the air flow sensor seems to cause improvement sometimes. Are these symptoms something it could do? Thanks for your relies guys.[/quote] take out the ignition coils and inspect the spark plug wells for oil…I had that happen once because of a bad gasket.
[quote=”boostedbox” post=107567]Well, by “it goes crazy” it generally acts like its running out of gas more or less. It starts missing really bad. It will keep running most of the time, but only at idle. Will not take fuel. And I have the hood off with a FPGauge connected inline and it doesn’t change. So it is getting fuel. If I turn it off and start it back up 90% off the time it will clear up and run better for a minute or two. ( literally) Then sometimes I can drive it for miles without a problem. The other night it ran like it should for quite a while. That was a first. Had plenty of power, no misses. Yes, it needs a complete tune up. But I’ve done the balance test by pulling the injectors one at a time and they each caused about the same RPM drop. I sprayed pretty much everything with water at night and didn’t see a spark one. I’ve never had a sensor go bad on a car, so I hate to blame one,(other than an oxygen sensor or two) especially by the condition a few of these connectors are in, but messing with the air flow sensor seems to cause improvement sometimes. Are these symptoms something it could do? Thanks for your relies guys.[/quote] take out the ignition coils and inspect the spark plug wells for oil…I had that happen once because of a bad gasket.
LOL I thought it would be more simple than that…I woundnt consider myself anything more than a an under glorified lube tech or brake specialist. Maybe I’ll try that as a side project in school. thanks for the input tho!!!![quote=”13aceofspades13″ post=107028]so your engine is a two stroke? most of the lawn mower modifications done are four stroke engines, if its a two stroke my knoladge of those on how too make them more powerful are limited.
for a four stroke engine there are a few ways too get more power, bigger carburetor, port and polish the intake and exhaust ports, straight pype it remove the mufflers, the govenor on most of the engines is located in the crank case according too my brother removing this allows higher revs but i caution you with a four stroke my brother himself floated the valves and well lets say the valve went through the head of the engine!
you can do a pulley swap the pulley too the crank is much smaller than the pulley too the transaxle, get a smaller trans axle pulley and a bigger engine pulley and that will allow more top end with sacrifice too torque of coarse. taller tires and wheels will allow more distance traveled with one tire rotation that will increase overall top end…[/quote]
LOL I thought it would be more simple than that…I woundnt consider myself anything more than a an under glorified lube tech or brake specialist. Maybe I’ll try that as a side project in school. thanks for the input tho!!!![quote=”13aceofspades13″ post=107028]so your engine is a two stroke? most of the lawn mower modifications done are four stroke engines, if its a two stroke my knoladge of those on how too make them more powerful are limited.
for a four stroke engine there are a few ways too get more power, bigger carburetor, port and polish the intake and exhaust ports, straight pype it remove the mufflers, the govenor on most of the engines is located in the crank case according too my brother removing this allows higher revs but i caution you with a four stroke my brother himself floated the valves and well lets say the valve went through the head of the engine!
you can do a pulley swap the pulley too the crank is much smaller than the pulley too the transaxle, get a smaller trans axle pulley and a bigger engine pulley and that will allow more top end with sacrifice too torque of coarse. taller tires and wheels will allow more distance traveled with one tire rotation that will increase overall top end…[/quote]
Gonna be goin to school for my associates degree this fall so I am tryin to get a solid inventory list going so that I can know what will be most beneficial to buy with my Stafford loans. I have observed a lot of classified ads hiring for auto mechanics “with their own tools” so I plan on having a stock pile by the time I graduate.[quote=”jdub1022″ post=106877]It really depends on the money you want to spend and what youre using it for. it sounds to me you just want to do simple diagnosis. Dead Battery, Alternator… little stuff. if youre not a professional then just go to your local auto parts store and get one for 20$ I have a 20$ one ans a 40$ one and i work in a shop. So if you are DIY just go simple and dont spend too much.[/quote]
Gonna be goin to school for my associates degree this fall so I am tryin to get a solid inventory list going so that I can know what will be most beneficial to buy with my Stafford loans. I have observed a lot of classified ads hiring for auto mechanics “with their own tools” so I plan on having a stock pile by the time I graduate.[quote=”jdub1022″ post=106877]It really depends on the money you want to spend and what youre using it for. it sounds to me you just want to do simple diagnosis. Dead Battery, Alternator… little stuff. if youre not a professional then just go to your local auto parts store and get one for 20$ I have a 20$ one ans a 40$ one and i work in a shop. So if you are DIY just go simple and dont spend too much.[/quote]
dually noted….I was gonna buy one super cheap on eBay when a friend informed me that the reason it was so cheap was cause they prolly haven’t been updated in quite a while and that a year alone could cost upto a thousand!!! yikes, but still find myself covetous of this product….probably because of the toy factor….I mean you can turn your fuel pump on or roll a window down (from what I have heard) but your right at that price I might as well just turn the key and roll the window up/down myself lol.[quote=”DaFirnz” post=106851][quote=”Monkey wrench” post=106641]I just got a Fluke 112 RMS but envy the snap on Verus lol :silly:[/quote]
The Snap-On Verus isn’t all it’s cracked up to be. Yes it does pretty much everything and has a 4-channel labscope built in. The down side is (especially with the last update)there’s so much other crap going on that its as slow as molasses on a winter morning. Never mind the initial price tag or the yearly software updates.
I use a manual ranging Snap-On EEDM503D which is what everyone else in the shop uses. If your testing a voltage drop or watching for resistance changes you don’t want the range to be auto adjusting.[/quote]
dually noted….I was gonna buy one super cheap on eBay when a friend informed me that the reason it was so cheap was cause they prolly haven’t been updated in quite a while and that a year alone could cost upto a thousand!!! yikes, but still find myself covetous of this product….probably because of the toy factor….I mean you can turn your fuel pump on or roll a window down (from what I have heard) but your right at that price I might as well just turn the key and roll the window up/down myself lol.[quote=”DaFirnz” post=106851][quote=”Monkey wrench” post=106641]I just got a Fluke 112 RMS but envy the snap on Verus lol :silly:[/quote]
The Snap-On Verus isn’t all it’s cracked up to be. Yes it does pretty much everything and has a 4-channel labscope built in. The down side is (especially with the last update)there’s so much other crap going on that its as slow as molasses on a winter morning. Never mind the initial price tag or the yearly software updates.
I use a manual ranging Snap-On EEDM503D which is what everyone else in the shop uses. If your testing a voltage drop or watching for resistance changes you don’t want the range to be auto adjusting.[/quote]
Nope I’m gonna wait to do that in school this fall…I figure the more work I do on my car in class the more my instructor will trust me to do on other cars and with a little luck, I will get a good recommendation for a dealership. [quote=”college man” post=106459][quote=”Monkey wrench” post=106428]okay so I flushed out the coolant in my car, twas a bit murky but not bad. definitely needed done though. i used the same funnel that Eric had in the above video, but i had to rev up to 3k to actually get it to suck in. Also, I filled my radiator up with water and revved until my t stats opened. Then I kicked the heat up all the way and took it for a drive. When I got back I dropped the water out then filled it up with anti freeze. So thanks for all your help guys!!![/quote]
Did you change the thermostats?[/quote]
Nope I’m gonna wait to do that in school this fall…I figure the more work I do on my car in class the more my instructor will trust me to do on other cars and with a little luck, I will get a good recommendation for a dealership. [quote=”college man” post=106459][quote=”Monkey wrench” post=106428]okay so I flushed out the coolant in my car, twas a bit murky but not bad. definitely needed done though. i used the same funnel that Eric had in the above video, but i had to rev up to 3k to actually get it to suck in. Also, I filled my radiator up with water and revved until my t stats opened. Then I kicked the heat up all the way and took it for a drive. When I got back I dropped the water out then filled it up with anti freeze. So thanks for all your help guys!!![/quote]
Did you change the thermostats?[/quote]
okay so I flushed out the coolant in my car, twas a bit murky but not bad. definitely needed done though. i used the same funnel that Eric had in the above video, but i had to rev up to 3k to actually get it to suck in. Also, I filled my radiator up with water and revved until my t stats opened. Then I kicked the heat up all the way and took it for a drive. When I got back I dropped the water out then filled it up with anti freeze. So thanks for all your help guys!!!
okay so I flushed out the coolant in my car, twas a bit murky but not bad. definitely needed done though. i used the same funnel that Eric had in the above video, but i had to rev up to 3k to actually get it to suck in. Also, I filled my radiator up with water and revved until my t stats opened. Then I kicked the heat up all the way and took it for a drive. When I got back I dropped the water out then filled it up with anti freeze. So thanks for all your help guys!!!