8n coil update

[profire31]

Let me start my saying it"s a 49 8n and still on the 6v system. It"s right pretty for a yard decoration but the garden is crying.

Well a few weeks ago I asked for help trying to find out how to check a coil as I couldn"t get fire. After a few hours beating my head I discovered the tab on the rotor button was bent down and not making contact on the dist. cap. What and easy fix!

Now I"ve got another problem. It won"t start. Got fire, gas to carb and the carb is clean(pulled it apart twice) and it"s set like the book says. This thing will only crank til the battery gives up. Tried starting fluid and gas in the plug holes. NOTHING! Doing plug checks before putting gas on them and they are dry. All I can guess, and thats all I know to do, is the compression is too low. The check showed it"s between 60 and 70 on all 4.

Any thoughts are more than appreciated as I"m ready to give up and call it scrap. Thanks in advance for everyone who puts time in this site helping those of us who just can"t seem to help ourselves.

 

[G6 at Snook, TX]

Pull start the thing in 4th gear. You might consider the 12v conversion or your might be looking at an overhaul. Others will be along to offer their better informed opinions.

Depending on where you are someone here might be willing to take it off your hands.

 

[JMOR]

(quoted from post at 10:05:39 03/17/09) Let me start my saying it"s a 49 8n and still on the 6v system. It"s right pretty for a yard decoration but the garden is crying.

Well a few weeks ago I asked for help trying to find out how to check a coil as I couldn"t get fire. After a few hours beating my head I discovered the tab on the rotor button was bent down and not making contact on the dist. cap. What and easy fix!

Now I"ve got another problem. It won"t start. Got fire, gas to carb and the carb is clean(pulled it apart twice) and it"s set like the book says. This thing will only crank til the battery gives up. Tried starting fluid and gas in the plug holes. NOTHING! Doing plug checks before putting gas on them and they are dry. All I can guess, and thats all I know to do, is the compression is too low. The check showed it"s between 60 and 70 on all 4.

Any thoughts are more than appreciated as I"m ready to give up and call it scrap. Thanks in advance for everyone who puts time in this site helping those of us who just can"t seem to help ourselves.

Yes, that is LOW, but you might get it to hobble buy putting a table spoon of oil in each cylinder, then pull start in high gear (pulling spins faster, allowing less time for compression to leak off). If it has been sitting a long time, then some compression may recover with use.

 

[souNdguy]

Ditto what the others said... probably too low of comp.

Try this.

Get a 12v battery from your truck,.. etc.. and jump the starter witht he 12v battery.. but have key on to power coil from 6v system.

make sure she is in neutral, and out of gear.. and block the clutch for this test.. less spinning mass to deal with.

if she kicks over on a 12v jump to the starter.. a 12v conversion may buy you a few years. a bandaid fix for sure.. but for the right reasons.. it's ok, as long as you know it is a pay-me-later kind of issue.

however as jmor said.. the rings may just be stuck and may loosen up with use.

soundguy

 

[GB in MT.]

(quoted from post at 09:15:27 03/17/09)

(quoted from post at 10:05:39 03/17/09) Let me start my saying it"s a 49 8n and still on the 6v system. It"s right pretty for a yard decoration but the garden is crying.

Well a few weeks ago I asked for help trying to find out how to check a coil as I couldn"t get fire. After a few hours beating my head I discovered the tab on the rotor button was bent down and not making contact on the dist. cap. What and easy fix!

Now I"ve got another problem. It won"t start. Got fire, gas to carb and the carb is clean(pulled it apart twice) and it"s set like the book says. This thing will only crank til the battery gives up. Tried starting fluid and gas in the plug holes. NOTHING! Doing plug checks before putting gas on them and they are dry. All I can guess, and thats all I know to do, is the compression is too low. The check showed it"s between 60 and 70 on all 4.

Any thoughts are more than appreciated as I"m ready to give up and call it scrap. Thanks in advance for everyone who puts time in this site helping those of us who just can"t seem to help ourselves.

Yes, that is LOW, but you might get it to hobble buy putting a table spoon of oil in each cylinder, then pull start in high gear (pulling spins faster, allowing less time for compression to leak off). If it has been sitting a long time, then some compression may recover with use.

b:745f06f4bd][i:745f06f4bd]

As JMOR says, if you can pull start it, it may resurect itself long enough to do your garden,BUT...I would say that if it is stuck rings, you may also have stuck valves.
I would hate to see anyone just give up, and junk it.
Here is a little cheap way to free up stuck valves. I made this up and you will NOT find this in any manual, but it works. A few members on this forum have done this and they, and myself swear by it.This can also free up the rings at the same time.
This is NOT a perm. fix. Only a ring and valve job can perm. fix the prob. right, but this may help get you a little more time, before doing an overhaul.
What have ya got to lose???!!! :shock:

Post back and let us know if any of this helps.

Gary [/i:745f06f4bd][/b:745f06f4bd]

 

[Jerry/MT]

I second Gary's opinion on getting the valves unstuck. I'd use brake cleaner fluid to help dissolve the varnish. generally the valves don't stay in one position they just move too slow to fully close and the engine behaves as if it has bad valve timing.

 

[Anonymous-0]

If you are getting sparkies, plugs are clean and it won't go on starting fluid, check for an intake leak. I had the same issue with my 8n. A gasket is a quick, easy cheap fix.

 

[profire31]

check out my newer post called 8n coil update to the update. thanks