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Search: Posts Made By: 142 guy
Forum: maintenance & nonperformance 03-29-2022, 03:17 PM
Replies: 7
Views: 483
Posted By 142 guy
The pressure does not have to drop immediately. ...

The pressure does not have to drop immediately. Sometimes the leak back will take 30 - 90 minutes to occur. My 1987 745 T suffered from the slow pressure loss following shut down leading to a slow...
Forum: maintenance & nonperformance 03-29-2022, 03:08 PM
Replies: 2
Views: 302
Posted By 142 guy
When the EGR valve goes open it admits inert gas...

When the EGR valve goes open it admits inert gas to the intake (inert as in no free O2) manifold which dilutes the intake charge and lowers combustion temperatures. On digital fuel injection the...
Forum: maintenance & nonperformance 03-29-2022, 12:23 PM
Replies: 4
Views: 153
Posted By 142 guy
Go here for a discussion of PCV arrangements for...

Go here for a discussion of PCV arrangements for the B18 and B20.

https://www.sw-em.com/pcv_diagrams_and_notes.htm

Make sure that your PCV system is correctly set up. I have seen a lot of...
Forum: maintenance & nonperformance 03-29-2022, 12:11 PM
Replies: 6
Views: 282
Posted By 142 guy
When you flushed the brake system, did you use...

When you flushed the brake system, did you use the pedal pump method? If you did, did you put a block under the pedal to prevent the brake pedal from traveling past its normal range of motion? If...
Forum: maintenance & nonperformance 03-19-2022, 12:32 PM
Replies: 17
Views: 3,827
Posted By 142 guy
As a suggestion, purchase some silicone grease...

As a suggestion, purchase some silicone grease (dielectric grease will do) and apply a thin coating to the contact surface of the door gasket. Close and open the door a couple of times and then...
Forum: maintenance & nonperformance 03-08-2022, 12:42 PM
Replies: 13
Views: 847
Posted By 142 guy
Checking the condition of the tie rod ends (even...

Checking the condition of the tie rod ends (even the new one) would be good place to start. There may be problems with the shocks; but, that would not explicitly cause your problem. Worn...
Forum: maintenance & nonperformance 03-02-2022, 11:21 AM
Replies: 6
Views: 760
Posted By 142 guy
The starter ground return path is through the...

The starter ground return path is through the starter frame to the bell housing to the engine block. I have never seen a ground connection from the chassis to the starter motor. However, there...
Forum: maintenance & nonperformance 02-26-2022, 12:55 PM
Replies: 3
Views: 1,031
Posted By 142 guy
An older generator might be a problem because the...

An older generator might be a problem because the operation of the commutator can generate some high frequency transients that could manifest themselves as electromagnetic interference. However,...
Forum: maintenance & nonperformance 02-25-2022, 12:52 PM
Replies: 20
Views: 1,411
Posted By 142 guy
As previously noted, AGM batteries are lead acid...

As previously noted, AGM batteries are lead acid battery chemistry so that addresses the primary BS advice that it needs to be lead acid, not AGM. The difference is in the construction - a mat...
Forum: maintenance & nonperformance 02-25-2022, 12:18 PM
Replies: 30
Views: 2,010
Posted By 142 guy
Your 240 (1990) should have had the later design...

Your 240 (1990) should have had the later design permanent magnet starter design (SR 437X). I had the SR 437X in my 1987 745T and it soldiered on for 27 years until I sold the car. Probably the...
Forum: maintenance & nonperformance 02-18-2022, 04:25 PM
Replies: 21
Views: 1,641
Posted By 142 guy
You can find new ones. Scandcar lists them for a...

You can find new ones. Scandcar lists them for a nose bleed price. The earlier valves as used on the 140 could be taken apart (4 bolt flange held the top hat on) and you can buy rebuild kits for...
Forum: maintenance & nonperformance 02-18-2022, 01:08 PM
Replies: 12
Views: 1,162
Posted By 142 guy
If you switch the turn signal to left (or right)...

If you switch the turn signal to left (or right) and the left turn (or right) signals go on and stay on you have a problem with just your flasher relay. If all four signal lamps light up you have...
Forum: maintenance & nonperformance 02-17-2022, 12:34 PM
Replies: 22
Views: 2,364
Posted By 142 guy
Here is the curve for a Bosch M12 sensor. ...

Here is the curve for a Bosch M12 sensor.

https://www.bosch-motorsport.com/content/downloads/Raceparts/en-GB/53687307119081483.html#/Tabs=53698955/

Unfortunately, they don't provide the typical...
Forum: maintenance & nonperformance 02-15-2022, 04:01 PM
Replies: 22
Views: 2,364
Posted By 142 guy
I am forming a line it the row which says...

I am forming a line it the row which says 'coolant sensor'. The coolant sensor's function is to tell the ECU that the engine is cold and needs fuel enrichment to run smoothly. Once the engine is...
Forum: performance & modifications 02-13-2022, 12:21 PM
Replies: 29
Views: 2,788
Posted By 142 guy
You should respect the cam provider's guidance as...

You should respect the cam provider's guidance as it is not in their interest to provide advice that makes their product look bad. The TT3 camshaft does close its intake valve earlier than the Volvo...
Forum: performance & modifications 02-11-2022, 12:31 PM
Replies: 29
Views: 2,788
Posted By 142 guy
If you don't want to pursue higher RPM operation...

If you don't want to pursue higher RPM operation or more displacement, compression ratio is your primary variable. This assumes that the head is not presenting a significant flow restriction.

If...
Forum: aftermarket engine management 02-04-2022, 12:28 PM
Replies: 8
Views: 1,492
Posted By 142 guy
I suspect that bad grounds have messed up (and...

I suspect that bad grounds have messed up (and continue to mess up) a lot of MS retrofits. You probably have a lot of company.

Consider applying some Gardner Bender Ox-gard between the bolted...
Forum: maintenance & nonperformance 02-03-2022, 04:18 PM
Replies: 19
Views: 1,545
Posted By 142 guy
I was out this morning getting some stuff. By...

I was out this morning getting some stuff. By the time I was doing this it had warmed up all the way to -25C. Including about 90 seconds of warm up time, the trip fuel economy for running around...
Forum: maintenance & nonperformance 02-03-2022, 04:10 PM
Replies: 8
Views: 955
Posted By 142 guy
The sticky pads are viscoelastic dampers not...

The sticky pads are viscoelastic dampers not deadeners or absorbers. Their sole purpose is to stop the body sheet metal panels from vibrating like a steel drum. The viscoelastic pad is what OEMs...
Forum: maintenance & nonperformance 02-03-2022, 12:57 PM
Replies: 12
Views: 1,501
Posted By 142 guy
Some / all (???) 164s use a vacuum pump for the...

Some / all (???) 164s use a vacuum pump for the brake system. I presume that you have confirmed that if you have a pump it is working? I thought the E versions just used a manifold nipple; but,...
Forum: performance & modifications 02-03-2022, 12:29 PM
Replies: 4
Views: 1,487
Posted By 142 guy
As dl242gt points out, coil near plug is not...

As dl242gt points out, coil near plug is not capacitor discharge. Capacitor discharge is primarily a two stroke technology used to fire through partially fouled spark plugs or on engines using...
Forum: performance & modifications 02-01-2022, 09:04 PM
Replies: 8
Views: 1,499
Posted By 142 guy
I don't use the AC idle up (the B20E does not...

I don't use the AC idle up (the B20E does not have the hp to spare for a an AC compressor); but, before posting my previous response I did call up my .msq in Tuner Studio, confirmed that it was in...
Forum: maintenance & nonperformance 02-01-2022, 05:20 PM
Replies: 19
Views: 1,545
Posted By 142 guy
How are your driving conditions? Lots of snow...

How are your driving conditions? Lots of snow and lowish temperatures? I have a B9 Audi A4 Allroad and it displays instantaneous, short term and long term fuel economy. Summertime on the highway...
Forum: performance & modifications 02-01-2022, 02:02 PM
Replies: 8
Views: 1,499
Posted By 142 guy
The first thing to be aware of is that with the...

The first thing to be aware of is that with the Bosch 2 wire style valve, the valve opening is sensitive to the vehicle operating voltage. So, if you are commanding a PW of 40% you get a different...
Forum: aftermarket engine management 01-30-2022, 01:40 PM
Replies: 8
Views: 1,492
Posted By 142 guy
I thought my old B230FT had a threaded fitting on...

I thought my old B230FT had a threaded fitting on the aluminum intake manifold specifically as a ground point with a braided flex connection to the firewall. Perhaps I am imagining things. I know...
Forum: maintenance & nonperformance 01-30-2022, 12:24 PM
Replies: 3
Views: 829
Posted By 142 guy
Its possible. Some of the kits are based upon...

Its possible. Some of the kits are based upon using an electric drill for the abrasive disc. I would use a DA buffer rather than an electric drill because drills are really awkward to use for...
Forum: aftermarket engine management 01-27-2022, 12:09 PM
Replies: 8
Views: 1,492
Posted By 142 guy
I am curious as to how you are reading a...

I am curious as to how you are reading a temperature via MS with the ignition off. Do you mean ignition on, engine running versus not running? If that is the case, then depending on how you have...
Forum: maintenance & nonperformance 01-19-2022, 09:02 PM
Replies: 26
Views: 2,543
Posted By 142 guy
The ECU may or may not be a problem; however, you...

The ECU may or may not be a problem; however, you still have the problem of how the injectors were getting power to go click click when the ECU and the key are off.

Volvo in the '80s had a problem...
Forum: maintenance & nonperformance 01-19-2022, 05:43 PM
Replies: 26
Views: 2,543
Posted By 142 guy
When everything is switched off, it would be...

When everything is switched off, it would be normal to have +12v on pin ECU 21. From the diagram, it appears that terminal 30 on the main relay has unswitched 12v, so power at terminal 30 would be...
Forum: maintenance & nonperformance 01-19-2022, 01:30 PM
Replies: 26
Views: 2,543
Posted By 142 guy
As I recall, the LH 2.2 injectors are batch fired...

As I recall, the LH 2.2 injectors are batch fired and ground switched by the ECU. I think it is a single ground switch (transistor) for all 4 in the ECU ????

In order for the injectors to be...
Forum: maintenance & nonperformance 01-18-2022, 12:37 PM
Replies: 26
Views: 2,543
Posted By 142 guy
First off, the ECU on my 1987 745 T did not have...

First off, the ECU on my 1987 745 T did not have any on board diagnostics so it did not have a keep alive circuit for storing error codes. I don't know when Volvo started implementing ECU...
Forum: performance & modifications 01-05-2022, 02:08 PM
Replies: 9
Views: 2,742
Posted By 142 guy
That is a starting point if you are talking about...

That is a starting point if you are talking about replicating just the RPM based (centrifugal) advance function. The RPM based advance profile used in the B20E engine would be a suitable start.
...
Forum: maintenance & nonperformance 01-03-2022, 12:55 PM
Replies: 17
Views: 1,289
Posted By 142 guy
I don't know about later model 240s; but,...

I don't know about later model 240s; but, certainly up to 1979 they continued to use the same fixed caliper arrangement as the 140s with 3 bleed ports on each front caliper. Check out the service...
Forum: maintenance & nonperformance 01-01-2022, 03:12 PM
Replies: 15
Views: 1,712
Posted By 142 guy
Correct for the later alternator equipped...

Correct for the later alternator equipped engines. I think the very first year of the 140 still had the B18 and they were generator equipped and I believe still had the lower bracket. The later...
Forum: maintenance & nonperformance 01-01-2022, 01:05 PM
Replies: 15
Views: 1,712
Posted By 142 guy
Single wire conversions do not fit into the...

Single wire conversions do not fit into the 'alternator housing'. Single wire conversions mean a complete replacement of the existing alternator with a new single wire alternator. You can get the...
Forum: performance & modifications 01-01-2022, 12:49 PM
Replies: 4
Views: 1,575
Posted By 142 guy
I presume that the original narrowband is still...

I presume that the original narrowband is still installed and is controlling the ECU or are you trying to emulate a narrowband control signal using the wideband ? Using the wideband to emulate a...
Forum: aftermarket engine management 12-22-2021, 05:16 PM
Replies: 16
Views: 3,090
Posted By 142 guy
Good point about completely zeroing out warm up...

Good point about completely zeroing out warm up enrichment to start off with. If the car is running 'stupid rich', eliminating screwed-up warm up enrichment settings will prevent them from...
Forum: aftermarket engine management 12-22-2021, 12:59 PM
Replies: 16
Views: 3,090
Posted By 142 guy
If it needs starting fluid to start, that is not...

If it needs starting fluid to start, that is not a warm up enrichment problem. That is a priming and cranking fuel pulse width problem. Once the engine fires and gets above the cranking versus...
Forum: performance & modifications 12-17-2021, 02:58 PM
Replies: 42
Views: 4,818
Posted By 142 guy
Are you talking about the variability in the...

Are you talking about the variability in the rocker ratios? I know that uneven wear on the rocker shoe can alter the rocker ratio; but, I thought a lot of the rocker ratio variability was baked...
Forum: performance & modifications 12-17-2021, 01:29 PM
Replies: 42
Views: 4,818
Posted By 142 guy
Agreed that none of my suggestions would enhance...

Agreed that none of my suggestions would enhance power output.

The comment on lifters was focused on 'if they are original they need to be replaced'. The Isky are a known good replacement; but, I...
Forum: performance & modifications 12-16-2021, 06:20 PM
Replies: 42
Views: 4,818
Posted By 142 guy
I didn't see it mentioned. When you get your...

I didn't see it mentioned. When you get your multi angle valve job done you will want to have hardened inserts installed on the exhaust ports for use with unleaded gas - unless that has already...
Forum: aftermarket engine management 12-14-2021, 12:46 PM
Replies: 35
Views: 8,069
Posted By 142 guy
When you are doing the spin with the drill test,...

When you are doing the spin with the drill test, reconnect the LEDs on the CAS cam and tach signal lines while it is connected to your MS2 and laptop running tuner studio. With a dropping resistor...
Forum: maintenance & nonperformance 12-11-2021, 12:33 PM
Replies: 22
Views: 4,029
Posted By 142 guy
I am curious. Since the car is pre OBD II they...

I am curious. Since the car is pre OBD II they generally do not have ECU misfire detection schemes. How did you diagnose that the misfire is on cylinders 3 and 4 as opposed to being just a general...
Forum: aftermarket engine management 12-08-2021, 01:35 PM
Replies: 15
Views: 2,567
Posted By 142 guy
First off, this is turbobricks. True 'bricks'...

First off, this is turbobricks. True 'bricks' and 'future' tend to be mutually exclusive terms.

If you truly want to be future proof, you would revert back to SU carbs and hard point to point...
Forum: aftermarket engine management 12-07-2021, 01:21 PM
Replies: 15
Views: 2,567
Posted By 142 guy
I am not seeing a huge up-side. Being able to...

I am not seeing a huge up-side. Being able to monitor current use is a function that I have been able to live without just fine. Also, the only time I have ever popped a fuse in a car is while...
Forum: aftermarket engine management 12-05-2021, 04:05 PM
Replies: 16
Views: 3,090
Posted By 142 guy
+/- 20% is a 40% variation. If you have...

+/- 20% is a 40% variation. If you have correctly calibrated your TPS in Tuner Studio to full closed and full open, a 40% variation in TPS signal is too much for vibration induced fluctuations...
Forum: aftermarket engine management 12-03-2021, 10:25 PM
Replies: 16
Views: 3,090
Posted By 142 guy
Its not the cause of your problem; but, what...

Its not the cause of your problem; but, what frequency are you running? 92 hz seems to be the best setting for the Bosch 2 and 3 wire valves.

What have you got your warm PW set at for the valve?...
Forum: performance & modifications 12-02-2021, 01:02 PM
Replies: 25
Views: 4,433
Posted By 142 guy
I agree with bobxyz. That downstream device...

I agree with bobxyz. That downstream device looks like a temperature sensor. Looks very much like a typical EG thermocouple probe except that it only looks like a single wire probe so perhaps a...
Forum: performance & modifications 11-29-2021, 01:19 PM
Replies: 69
Views: 8,129
Posted By 142 guy
I have a 1971 142E with the original Bosch 35 amp...

I have a 1971 142E with the original Bosch 35 amp alternator. I have retrofitted an electric fan and with an 850 RPM idle the alternator has no problem maintaining a voltage of 14.2 volts with the...
Forum: performance & modifications 11-27-2021, 05:52 PM
Replies: 25
Views: 4,433
Posted By 142 guy
This will depend on what vintage your 960 is and...

This will depend on what vintage your 960 is and whether Kiwiville adopted the OBDII standard (or whether Volvo made a version specifically for non OBDII markets).

If your car is non OBDII, you...
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