94 gas DS won't rev over 2100 rpm

lockman1 · 05-16-2013, 05:51 PM

Weird!

IMHO... it doesn't sound electrical, it sounds like the governor is keeping the carb from opening!

So... I'm guessing you pulled on the carb cable when in maintenance mode and the go pedal floored?

nobuckbuild · 05-16-2013, 09:19 PM

ok i know it doesn't help but have you considered just calling it a lowrider and just go "low and slow" all you need to do is get some gold plastic hubcaps and a crush velvet seat covers and a chain steering wheel bam! problem solved.

ok on a serious note lets try something to eliminate the ignition or starter problem , start the engine and get it to 2100 rpm and then give it a shot of starting fluid to see if the rpms jump , if it starts to jump then we have a fuel intake problem , if not then we have a some more digging to do , first of which would be to pull the valve cover and see how much movement we have on the intake valve to check not only valve lash but the actual amount the valve is opening once that is cleared im thinking to check the starter gen output and the condition of the regulator , if that gen is getting hot it may be a cooked regulator and the resistance caused by electricity with no place to go and puts a very large amount of drag on the engine.

rangerdaver91 · 05-17-2013, 09:15 AM

yes I test in maintenance mode.The governor is disabled. I have tried starting fluid, it bogs the engine. The valves are adjusted to .005 in. and are opening and closing. When I disconnect the regulator I get like 800 more rpm. What kind of compression should this thing carry ? This thing has some really bad blow by, I am beginning to think maybe it is too weak to pull up the revs. Can this happen ? that the engine gets to weak to run at higher levels? But 155psi cold and 145psi hot does not sound that bad but the massive amount of blow by makes me think maybe a stuck ring ?

rangerdaver91 · 05-20-2013, 08:26 AM

Dang, I went to Ky lake this weekend but when I got back home this thing was still not fixed.

rangerdaver91 · 05-20-2013, 09:11 AM

I was hoping Tinker Bell had fixed it while I was away.

rangerdaver91 · 05-20-2013, 09:12 AM

But that didn't happen.

rangerdaver91 · 05-20-2013, 04:02 PM

Think I am making progress

rangerdaver91 · 05-20-2013, 04:55 PM

Pulled the engine out today, will give it a good once over.

rangerdaver91 · 05-21-2013, 08:39 AM

Hmm this is interesting

TRP · 05-21-2013, 09:05 AM

This may be stupid, but... how is the exhaust? If its blocked by something the motor won't breathe properly. You cant run the motor without back pressure, but too much restriction is also bad.

Just thinking out loud here.

Ted

05-16-2013, 05:51 PM	#21
lockman1 What the ....? Join Date: Jan 2007 Location: N.E. Wisconsin Posts: 14,932	Re: 94 gas DS won't rev over 2100 rpm Weird! IMHO... it doesn't sound electrical, it sounds like the governor is keeping the carb from opening! So... I'm guessing you pulled on the carb cable when in maintenance mode and the go pedal floored?

05-16-2013, 09:19 PM	#22
nobuckbuild Gone Wild Join Date: Mar 2012 Location: CENTRAL PENNSYLVANIA Posts: 1,466	Re: 94 gas DS won't rev over 2100 rpm ok i know it doesn't help but have you considered just calling it a lowrider and just go "low and slow" all you need to do is get some gold plastic hubcaps and a crush velvet seat covers and a chain steering wheel bam! problem solved. ok on a serious note lets try something to eliminate the ignition or starter problem , start the engine and get it to 2100 rpm and then give it a shot of starting fluid to see if the rpms jump , if it starts to jump then we have a fuel intake problem , if not then we have a some more digging to do , first of which would be to pull the valve cover and see how much movement we have on the intake valve to check not only valve lash but the actual amount the valve is opening once that is cleared im thinking to check the starter gen output and the condition of the regulator , if that gen is getting hot it may be a cooked regulator and the resistance caused by electricity with no place to go and puts a very large amount of drag on the engine.

05-17-2013, 09:15 AM	#23
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43	Re: 94 gas DS won't rev over 2100 rpm yes I test in maintenance mode.The governor is disabled. I have tried starting fluid, it bogs the engine. The valves are adjusted to .005 in. and are opening and closing. When I disconnect the regulator I get like 800 more rpm. What kind of compression should this thing carry ? This thing has some really bad blow by, I am beginning to think maybe it is too weak to pull up the revs. Can this happen ? that the engine gets to weak to run at higher levels? But 155psi cold and 145psi hot does not sound that bad but the massive amount of blow by makes me think maybe a stuck ring ?
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43

05-20-2013, 08:26 AM	#24
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43	Re: 94 gas DS won't rev over 2100 rpm Dang, I went to Ky lake this weekend but when I got back home this thing was still not fixed.
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43

05-20-2013, 09:11 AM	#25
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43	Re: 94 gas DS won't rev over 2100 rpm I was hoping Tinker Bell had fixed it while I was away.
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43

Today
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05-20-2013, 09:12 AM	#26
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43	Re: 94 gas DS won't rev over 2100 rpm But that didn't happen.
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43

05-20-2013, 04:02 PM	#27
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43	Re: 94 gas DS won't rev over 2100 rpm Think I am making progress
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43

05-20-2013, 04:55 PM	#28
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43	Re: 94 gas DS won't rev over 2100 rpm Pulled the engine out today, will give it a good once over.
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43

05-21-2013, 08:39 AM	#29
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43	Re: 94 gas DS won't rev over 2100 rpm Hmm this is interesting
rangerdaver91 Not Yet Wild Join Date: Feb 2007 Posts: 43

05-21-2013, 09:05 AM	#30
TRP Gone Wild Join Date: Apr 2013 Location: Morgan Hill, California Posts: 207	Re: 94 gas DS won't rev over 2100 rpm This may be stupid, but... how is the exhaust? If its blocked by something the motor won't breathe properly. You cant run the motor without back pressure, but too much restriction is also bad. Just thinking out loud here. Ted

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