Still trying to track down an engine vibration...
11-09-2010, 02:30 PM
#16
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I'm such an idiot ...
Subliminal ...
What you're describing almost sounds exactly like what my donor truck was doing when I got it.
Good at idle, rough mid-range and would shake the truck apart when you tried to get her all the way up ...
I believe what fixed my truck ensuring the KSB solenoid had a good connection. (I fixed a few things at once)
I changed my spade terminals to ring terminals, cleaned all the connections and she now purrs like a kitten.
What you're describing almost sounds exactly like what my donor truck was doing when I got it.
Good at idle, rough mid-range and would shake the truck apart when you tried to get her all the way up ...
I believe what fixed my truck ensuring the KSB solenoid had a good connection. (I fixed a few things at once)
I changed my spade terminals to ring terminals, cleaned all the connections and she now purrs like a kitten.
11-09-2010, 02:33 PM
#17
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I actually recently cut the ends off the two wires going to the fuel pump, and I think it was one of the two...cleaned it all up and put new spade connectors on...
I wish that was my problem...maybe I'll double check!
Thanks for all the replies, fellas...anyone else...feel free to chime in, too!
I wanna track this puppy down!
I wish that was my problem...maybe I'll double check!
Thanks for all the replies, fellas...anyone else...feel free to chime in, too!
I wanna track this puppy down!
11-09-2010, 03:28 PM
#18
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I recently had the front motor mounts replaced - passenger side was broke and drivers side was cracked badly...
Now I've got a vibration that starts about 1100 rpm and gets worse to about 1800 rpm then gets less as r's go up more.
What's really bad is the bench seat springs must be harmonic or something because the whole seat vibrates in time with the engine.
Cool massage but I can see this being a MAJOR PITA on a long trip...
I'm replacing the trans rear mounts next week, hope that'll quieten things down...
Now I've got a vibration that starts about 1100 rpm and gets worse to about 1800 rpm then gets less as r's go up more.
What's really bad is the bench seat springs must be harmonic or something because the whole seat vibrates in time with the engine.
Cool massage but I can see this being a MAJOR PITA on a long trip...
I'm replacing the trans rear mounts next week, hope that'll quieten things down...
11-10-2010, 07:46 AM
#20
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So, I noticed something weird last night that I thought was worth mentioning:
In gear, when I let the truck go to the governor (remember 3200 spring), it will run semi-smooth (normal) up till it hits the governor, and then it feels like it backs off just a little and when it does this, it vibrates so bad it feels like the truck is going to fall apart.
In gear, when I let the truck go to the governor (remember 3200 spring), it will run semi-smooth (normal) up till it hits the governor, and then it feels like it backs off just a little and when it does this, it vibrates so bad it feels like the truck is going to fall apart.
11-10-2010, 08:18 PM
#21
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I'll have to check the front balancer/pulley...that's a good idea!
The flywheel was surfaced and balanced and then pulled and re-rebalanced. The PP and clutch have a few thousand miles on them (at most) now, as they were brand new parts during the swap.
I did not use a torque wrench, but I did tighten them good and used loctite.
Thanks for the reply!
The flywheel was surfaced and balanced and then pulled and re-rebalanced. The PP and clutch have a few thousand miles on them (at most) now, as they were brand new parts during the swap.
I did not use a torque wrench, but I did tighten them good and used loctite.
Thanks for the reply!
James
11-11-2010, 07:14 AM
#23
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Yeah, I did that last night. Didn't make much change.
My guesses at this point are:
Fuel system
Something behind the engine.
I don't really know what to do at this point to check out the fuel system. I've had injectors tested and replaced with no change. I've changed the fuel filter.
Behind the engine, I just need to have some time I guess. I can borrow my friend's ATV jack again and pull the transmission. If I do, I'll pull the tranny out and leave the clutch and such and then start it, see if it vibrates. Then pull the pressure plate and see if it still vibrates. I've another pressure plate I can throw in, if that's the issue.
Grrr. Getting too cold to be out there crawling around under the truck, but I can't take much more of it...it's really starting to **** me off.
My guesses at this point are:
Fuel system
Something behind the engine.
I don't really know what to do at this point to check out the fuel system. I've had injectors tested and replaced with no change. I've changed the fuel filter.
Behind the engine, I just need to have some time I guess. I can borrow my friend's ATV jack again and pull the transmission. If I do, I'll pull the tranny out and leave the clutch and such and then start it, see if it vibrates. Then pull the pressure plate and see if it still vibrates. I've another pressure plate I can throw in, if that's the issue.
Grrr. Getting too cold to be out there crawling around under the truck, but I can't take much more of it...it's really starting to **** me off.
11-11-2010, 07:39 AM
#24
Any possibility that the drive train is mis aligned.(since this started after the swap) I had a vibration after I did the downgrade, no where near what you are describing but still there.
Also do you have any other manual trucks to compare yours to.
Also do you have any other manual trucks to compare yours to.
11-11-2010, 07:41 AM
#25
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I haven't seen a first gen other than mine in...well, I can't even remember.
Drivetrain could be misaligned...I'll tell you what...if I take this all back apart again, you can be damned sure I'm going to try and be precise when I reinstall it all.
Drivetrain could be misaligned...I'll tell you what...if I take this all back apart again, you can be damned sure I'm going to try and be precise when I reinstall it all.
11-12-2010, 07:37 AM
#26
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I'm keeping this one up at the top for more suggestions.
I noticed the last few days that it vibrates WAY more in the AM, now that it's getting cold. Drive home from work isn't so bad, but drive in makes me sad to own it.
I noticed the last few days that it vibrates WAY more in the AM, now that it's getting cold. Drive home from work isn't so bad, but drive in makes me sad to own it.
11-12-2010, 09:13 AM
#28
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Well, it didn't make a difference when I switched to the new injectors, as far as the vibration issue goes, so I'm not sure if that'll help...but I appreciate the suggestion!
11-12-2010, 09:22 AM
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That's ok...like I said, I appreciate the help...I'm hoping someone will make a magic suggestion I haven't tried and I'll be able to get past this issue and move on to just enjoying the truck!