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Search: Posts Made By: ZVOLV
Forum: maintenance & nonperformance Today, 04:50 AM
Replies: 17
Views: 355
Posted By ZVOLV
Dave P, So you have an INTERMITTENT NO...

Dave P,

So you have an INTERMITTENT NO CRANK!?

Find your meter and do voltage drop tests AND parasitic battery drain measurements.
Forum: maintenance & nonperformance Today, 04:26 AM
Replies: 3
Views: 84
Posted By ZVOLV
No meter

Can you pull a 1-1-1 from both the EZK and the LH on the OBD blinky interface?
Forum: projects & restorations 01-15-2021, 06:56 AM
Replies: 245
Views: 141,249
Posted By ZVOLV
I do not agree with your method of adding a relay...

I do not agree with your method of adding a relay to the starter circuit. That makes more points of failure. You have excessive resistance somewhere in the circuit. I am going to guess at terminal...
Forum: performance & modifications 01-15-2021, 06:47 AM
Replies: 16
Views: 751
Posted By ZVOLV
Tire diameter changes the math.

Tire diameter changes the math.
Forum: maintenance & nonperformance 01-15-2021, 06:28 AM
Replies: 16
Views: 514
Posted By ZVOLV
Too little oil could seize a compressor. Too much...

Too little oil could seize a compressor. Too much could make it sluggish. There is no way to tell how much oil is left in the system. It is PROBABLY about right. I wouldn't worry about the oil...
Forum: maintenance & nonperformance 01-15-2021, 05:36 AM
Replies: 16
Views: 514
Posted By ZVOLV
Nope, I do all me work from the low side. There...

Nope, I do all me work from the low side. There are some high side Schrader valves that leak when disrupted and require an entire hose replacement.

Restrictions are uncommon.

I start...
Forum: maintenance & nonperformance 01-15-2021, 02:16 AM
Replies: 16
Views: 514
Posted By ZVOLV
Unless you are having a problem, you don't need a...

Unless you are having a problem, you don't need a high side fitting.

Just vacuum down the system, charge by WEIGHT thru the low side, and then enjoy A/C.
Forum: maintenance & nonperformance 01-15-2021, 02:06 AM
Replies: 5
Views: 405
Posted By ZVOLV
IDK

Try the LAST ONE in that manual. Connect SIG on your meter to the terminal on the back of the cluster that transfers the speed signal to the ECM. Or maybe there is a terminal on the back of a 740...
Forum: maintenance & nonperformance 01-14-2021, 10:02 PM
Replies: 16
Views: 514
Posted By ZVOLV
Why do you need a high side fitting?

Why do you need a high side fitting?
Forum: maintenance & nonperformance 01-14-2021, 05:57 PM
Replies: 2
Views: 145
Posted By ZVOLV
This is a common topic. Search. Test...

This is a common topic. Search.


Test lamp to disconnected exciter wire, key on, illuminate?

Loaded voltage drop test the ground wire.

Inspect the brushes.
Forum: maintenance & nonperformance 01-13-2021, 12:39 PM
Replies: 36
Views: 1,336
Posted By ZVOLV
I have seen coolant temperature sensors leak...

I have seen coolant temperature sensors leak coolant into the wiring and make it all the way to the engine control module and corrode terminals at the ECM. I have also seen oil pressure sensors shoot...
Forum: maintenance & nonperformance 01-12-2021, 04:39 PM
Replies: 36
Views: 1,336
Posted By ZVOLV
That's just a fresh clean air supply for some...

That's just a fresh clean air supply for some solenoid valve. 850 people can chime in. Or look for a vacuum diagram. Is there one under the hood?
Forum: maintenance & nonperformance 01-12-2021, 04:29 PM
Replies: 36
Views: 1,336
Posted By ZVOLV
Try using imgur.

Try using imgur.
Forum: maintenance & nonperformance 01-11-2021, 06:42 PM
Replies: 36
Views: 1,336
Posted By ZVOLV
A fuel induction service (aka seafoam treatment)...

A fuel induction service (aka seafoam treatment) can help remove some of the carbon on the valve stems that may be causing them to stick open on a cold start.
Forum: projects & restorations 01-10-2021, 07:37 PM
Replies: 107
Views: 32,549
Posted By ZVOLV
Did you install metric vacuum hoses?

Did you install metric vacuum hoses?
Forum: maintenance & nonperformance 01-10-2021, 07:36 PM
Replies: 36
Views: 1,336
Posted By ZVOLV
Where is the ECT sensor on this engine? I saw...

Where is the ECT sensor on this engine? I saw some 850's but didn't see the ECT sensor easily.

Another issue on the whiteblocks is lack of compression on startup. It could be sticky valves. It...
Forum: maintenance & nonperformance 01-10-2021, 05:36 PM
Replies: 36
Views: 1,336
Posted By ZVOLV
Replaced the corroded terminals. I would just...

Replaced the corroded terminals. I would just snip a replacement connector off a junkyard car with at least several inches of wire. You can also get replacement terminals, connectors, or a "loaded...
Forum: maintenance & nonperformance 01-08-2021, 11:53 PM
Replies: 45
Views: 2,758
Posted By ZVOLV
One washer on each side!

One washer on each side!
Forum: maintenance & nonperformance 01-08-2021, 11:39 PM
Replies: 37
Views: 4,296
Posted By ZVOLV
I would put the original shims back in the...

I would put the original shims back in the original position and then measure ring gear backlash. Do you have a dial indicator and an adjustable base? Ol' skool guys just wiggle the ring gear by hand...
Forum: maintenance & nonperformance 01-08-2021, 11:26 PM
Replies: 45
Views: 2,758
Posted By ZVOLV
Did you put a washer on that side of the banjo...

Did you put a washer on that side of the banjo fitting? I don't see one. I do see TWO washers on the SAME SIDE!?
Forum: projects & restorations 01-08-2021, 03:58 PM
Replies: 245
Views: 141,249
Posted By ZVOLV
:cheers: You are motivating me to make...

:cheers:

You are motivating me to make progress on my B234FT build.
Forum: maintenance & nonperformance 01-08-2021, 03:38 PM
Replies: 36
Views: 1,336
Posted By ZVOLV
You can get a cheap OBD2 interface that will...

You can get a cheap OBD2 interface that will connect to a smartphone via bluetooth. You can also monitor data. Your success on early VOLVO OBD2 may be limited. But you might see something like the...
Forum: performance & modifications 01-07-2021, 12:10 AM
Replies: 28
Views: 1,844
Posted By ZVOLV
Change all fluids, fix all leaks, replace worn...

Change all fluids, fix all leaks, replace worn suspension components. Replace soft engine and trans mounts and driveshaft support.

I didn't detect any bad vibrations after removing the frame...
Forum: maintenance & nonperformance 01-06-2021, 10:25 PM
Replies: 37
Views: 4,296
Posted By ZVOLV
Pinion preload

It is not a torque spec. I think of it as a "drag spec". It's the amount of drag before the pinion flange turns.

INCH POUNDS of drag. It's not much. Guys that have done it for a while may not even...
Forum: performance & modifications 01-06-2021, 03:30 PM
Replies: 28
Views: 1,844
Posted By ZVOLV
I think about 8 lbs each side. You pull the...

I think about 8 lbs each side. You pull the bumper, remove the four10mm nuts, and then fish the weight out with a coat hanger.

Some models have another weight on the firewall behind the dist....
Forum: maintenance & nonperformance 01-05-2021, 12:09 PM
Replies: 36
Views: 1,336
Posted By ZVOLV
Always confirm the circuit is good before firing...

Always confirm the circuit is good before firing a part at the problem. I imagine it's is a 3 wire sensor with a 5V reference, ground, and signal.


Confirm voltage, confirm good continuity on the...
Forum: maintenance & nonperformance 01-03-2021, 02:52 PM
Replies: 36
Views: 1,336
Posted By ZVOLV
How does one test a cam sensor?

How does one test a cam sensor?
Forum: performance & modifications 01-01-2021, 03:06 PM
Replies: 28
Views: 1,844
Posted By ZVOLV
Pull the frame weights.

Pull the frame weights.
Forum: maintenance & nonperformance 12-29-2020, 06:56 PM
Replies: 12
Views: 1,011
Posted By ZVOLV
Is it a "hard code"? Meaning, after clearing it...

Is it a "hard code"? Meaning, after clearing it does it come back immediately?

Have you unplugged the connector and looked for bent, spread, or corroded terminals?
Forum: maintenance & nonperformance 12-28-2020, 04:45 PM
Replies: 12
Views: 1,011
Posted By ZVOLV
Check resistance on each leg of the circuit. Tip...

Check resistance on each leg of the circuit. Tip to tip.
Forum: maintenance & nonperformance 12-22-2020, 03:15 PM
Replies: 4
Views: 773
Posted By ZVOLV
Which fork are you running? Which pivot pin...

Which fork are you running?

Which pivot pin are you running?

I need to figure this all out too for my M90 install. I have a Sachs diesel clutch. I have a short M90 pivot pin. I think last...
Forum: maintenance & nonperformance 12-21-2020, 05:03 PM
Replies: 19
740: Lug nuts
Views: 1,267
Posted By ZVOLV
I rotate the fronts diagonally to the rear, then...

I rotate the fronts diagonally to the rear, then the rears go straight to the front.
Forum: maintenance & nonperformance 12-19-2020, 12:53 PM
Replies: 7
Views: 840
Posted By ZVOLV
Consult a wiring diagram. A quick test:...

Consult a wiring diagram.

A quick test: find which terminal at the ECM grounds the fan. There should be a low and a high. Short each terminal to ground and the fan should come on. That will...
Forum: maintenance & nonperformance 12-18-2020, 12:31 PM
Replies: 13
Views: 886
Posted By ZVOLV
Just make sure you position the head of the screw...

Just make sure you position the head of the screw at an angle where you can reach it from the top next time.
Forum: maintenance & nonperformance 12-18-2020, 02:07 AM
Replies: 13
Views: 886
Posted By ZVOLV
I haven't used a screw driver to turn a worm...

I haven't used a screw driver to turn a worm drive hose clamp in a very long time.

To get the hose off the barb, I currently use Wide Tip Radiator Hose Picks.
:
Forum: maintenance & nonperformance 12-17-2020, 12:52 PM
Replies: 11
Views: 2,008
Posted By ZVOLV
I'd do a quick compression test at this point.

I'd do a quick compression test at this point.
Forum: maintenance & nonperformance 12-16-2020, 10:21 PM
Replies: 19
740: Lug nuts
Views: 1,267
Posted By ZVOLV
That lube tech thought your Volvo was a Honda! He...

That lube tech thought your Volvo was a Honda! He just kicked the feet of the lift under the pinch welds and then hit the button.

I'm experienced enough now I can kick the feet under most...
Forum: maintenance & nonperformance 12-16-2020, 02:22 PM
Replies: 4
Views: 627
Posted By ZVOLV
Might as well get a 1992+ rail on there with a...

Might as well get a 1992+ rail on there with a Schrader valve


That one is done. It's from lack of counter holding it when attempting to release the 17mm nut.
Forum: maintenance & nonperformance 12-15-2020, 11:30 PM
Replies: 11
Views: 1,147
Posted By ZVOLV
It may be worth checking your coolant temp sensor...

It may be worth checking your coolant temp sensor resistance at each computer.

A skewed MAF could cause poor MPG.

You could also pull the fuel ressure regulator vac hose, engine running, and...
Forum: maintenance & nonperformance 12-15-2020, 02:11 PM
Replies: 45
Views: 2,758
Posted By ZVOLV
I bet my 1/2" impact and some lube woulda popped...

I bet my 1/2" impact and some lube woulda popped em right off.
Forum: maintenance & nonperformance 12-15-2020, 02:39 AM
Replies: 45
Views: 2,758
Posted By ZVOLV
I wanna re-wire my main fuel pump. I'm tired of...

I wanna re-wire my main fuel pump. I'm tired of hearing it complain when I'm low on fuel. I also have a surging at high load that I need to address.

Maybe even do a relay-triggering-another-relay...
Forum: maintenance & nonperformance 12-15-2020, 02:22 AM
Replies: 25
Views: 1,420
Posted By ZVOLV
I pull leaves out of blower motors all the time....

I pull leaves out of blower motors all the time. It's usually right after somebody did a cabin filter and some debris dropped in there. The worst is when there's a rodent nest in there.

Yeah,...
Forum: maintenance & nonperformance 12-14-2020, 08:11 PM
Replies: 37
Views: 4,296
Posted By ZVOLV
Make sure you measure INCH POUNDS not foot/lbs.

Make sure you measure INCH POUNDS not foot/lbs.
Forum: maintenance & nonperformance 12-10-2020, 05:51 PM
Replies: 11
Views: 2,008
Posted By ZVOLV
Disconnect a FUEL INJECTOR one at a time for a...

Disconnect a FUEL INJECTOR one at a time for a safer cylinder drop test for you and your kitty.

A slighty clogged injector is a possibility. Or just the mixture going too rich/lean.

Maybe...
Forum: performance & modifications 12-08-2020, 04:39 AM
Replies: 6
Views: 1,018
Posted By ZVOLV
BTW

I do NOT recommend any type of permanently mounted fuel pressure sender on the factory Volvo 1992+ fuel rail Schrader valve. The valve broke off the rail when I dangled a sender on it.
Forum: maintenance & nonperformance 12-08-2020, 04:32 AM
Replies: 5
Views: 736
Posted By ZVOLV
My 740 has some crotch rot there too. The...

My 740 has some crotch rot there too. The previous owner let a water leak go unattended.
Forum: maintenance & nonperformance 12-07-2020, 03:56 PM
Replies: 5
Views: 764
Posted By ZVOLV
If you do that, make sure to do them one at a...

If you do that, make sure to do them one at a time.
Forum: maintenance & nonperformance 12-05-2020, 06:49 PM
Replies: 5
Views: 764
Posted By ZVOLV
No spark AND no fuel injector pulse= crank sensor...

No spark AND no fuel injector pulse= crank sensor suspect.

JUST NO SPARK= power stage suspect
Forum: maintenance & nonperformance 12-05-2020, 02:38 AM
Replies: 11
Views: 1,147
Posted By ZVOLV
Maybe try a fresh O2 sensor for the MPG concern. ...

Maybe try a fresh O2 sensor for the MPG concern.

I recently failed smog for NOX at 900ppm. Tech recommended a new O2, confirm EGR working well, and fix lean running issues. Fresh Bosch O2,...
Forum: maintenance & nonperformance 12-05-2020, 02:26 AM
Replies: 7
Views: 798
Posted By ZVOLV
I would check the fuel pressure and the...

I would check the fuel pressure and the compression.
Showing results 1 to 50 of 300

 
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