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Search: Posts Made By: 142 guy
Forum: performance & modifications 02-20-2021, 12:37 PM
Replies: 13
Views: 610
Posted By 142 guy
Begs the question, is the OP incurring back fire...

Begs the question, is the OP incurring back fire which is combustion products exiting through the intake system (the always spectacular flame exiting the chokes on a 4 barrel carb followed by...
Forum: performance & modifications 02-19-2021, 01:11 PM
Replies: 13
Views: 610
Posted By 142 guy
Do you have a blow off valve venting to...

Do you have a blow off valve venting to atmosphere? If not, where is the flame coming from if the exhaust manifold was repaired?

If you have an atmospheric venting blow off valve, the upset in...
Forum: projects & restorations 02-18-2021, 09:16 PM
Replies: 58
Views: 30,529
Posted By 142 guy
The bracket with the relays would have been...

The bracket with the relays would have been common on all 140s up until at least 1972. No bolts associated with mounting the bracket, just a couple of phillips head sheet metal screws (probably #8...
Forum: projects & restorations 02-18-2021, 11:57 AM
Replies: 58
Views: 30,529
Posted By 142 guy
The 'sketchy aftermarket junction box' that you...

The 'sketchy aftermarket junction box' that you are referring to, is that that row of three relays mounted on a bracket? If so, that is not aftermarket. It is OEM and (on a 1971 model) the three...
Forum: maintenance & nonperformance 02-13-2021, 01:44 PM
Replies: 4
Views: 521
Posted By 142 guy
I expect that the Amazon is like the 140. All...

I expect that the Amazon is like the 140. All the external rear view mirrors on the 140 were dealer installed so there is no 'correct' location. For the driver side with an OEM Volvo mirror, the...
Forum: maintenance & nonperformance 02-13-2021, 01:29 PM
Replies: 4
Views: 573
Posted By 142 guy
My other car is a first gen NSX. Engine in...

My other car is a first gen NSX. Engine in back, radiator in front, miles of coolant hoses & pipes and a number of drain ports and bleeder vents. A vacuum refill tool is the preferred refill...
Forum: performance & modifications 02-12-2021, 06:32 PM
Replies: 12
Views: 842
Posted By 142 guy
The exhaust turbine is an expander. Both the...

The exhaust turbine is an expander. Both the temperature and the pressure of the gas drops as it expands through the turbine so the turbine extracts energy from both. That is why there is benefit...
Forum: performance & modifications 02-12-2021, 01:51 PM
Replies: 12
Views: 842
Posted By 142 guy
E85 has a stoichiometric ratio of around 9.8:1...

E85 has a stoichiometric ratio of around 9.8:1 compared to around 14.7:1 for non ethanol gasoline which reflects the fact that ethanol is an oxygen bearing fuel. So, per engine cycle an engine...
Forum: maintenance & nonperformance 02-04-2021, 05:35 PM
Replies: 26
Views: 1,805
Posted By 142 guy
Is the Denso a 1 wire alternator or does it have...

Is the Denso a 1 wire alternator or does it have a separate excitation terminal that you have connected to the dash charge light? If it has an external excitation terminal disconnect the terminal...
Forum: maintenance & nonperformance 02-03-2021, 12:09 PM
Replies: 26
Views: 1,805
Posted By 142 guy
You need to go back and repeat your measurement...

You need to go back and repeat your measurement of the parasitic current. A 150 mA current on a 12 volt battery is equivalent to 1.8 watts, about the rating of one of those little dash indicator...
Forum: maintenance & nonperformance 01-31-2021, 02:49 PM
Replies: 12
Views: 1,160
Posted By 142 guy
If there is a spec in the service manual for...

If there is a spec in the service manual for clutch fork motion check it to make sure that you are getting the correct amount of movement from the slave cylinder to insure complete disengagement. ...
Forum: maintenance & nonperformance 01-31-2021, 01:35 AM
Replies: 21
Views: 1,961
Posted By 142 guy
You can buy the Motive adapter cap that fits the...

You can buy the Motive adapter cap that fits the Volvo MC for something around $15 or less and a garden pump sprayer from a big box store will do fine for a pressure source. Just don't over do it...
Forum: maintenance & nonperformance 01-30-2021, 03:38 PM
Replies: 33
Views: 2,646
Posted By 142 guy
Perhaps the OP has grown up with Honda Ks or cars...

Perhaps the OP has grown up with Honda Ks or cars equipped with hydraulic lifters. The noise they are now hearing may be normal Volvo OHV racket. Of course, without getting caught up in the debate...
Forum: performance & modifications 01-30-2021, 03:32 PM
Replies: 60
Views: 5,009
Posted By 142 guy
Volvo's advertised hp for a B30E was 175 hp @...

Volvo's advertised hp for a B30E was 175 hp @ 5800 RPM. That would be 'advertised / exaggerated' and measured at the crankshaft. If you measured a 'true' 185 hp at the rear wheels that strikes me...
Forum: performance & modifications 01-28-2021, 01:58 PM
Replies: 60
Views: 5,009
Posted By 142 guy
I have also mulled a low pressure turbo...

I have also mulled a low pressure turbo application as an alternative to increasing valve lift and valve duration (and valve train wear) for a modest across the RPM band power increase. The...
Forum: performance & modifications 01-27-2021, 06:50 PM
Replies: 60
Views: 5,009
Posted By 142 guy
I probably should have worded that as best in...

I probably should have worded that as best in terms of being able to make it better in terms of how much weld was required to fill the floor of the exhaust port to improve the short side radius. My...
Forum: performance & modifications 01-27-2021, 04:08 PM
Replies: 60
Views: 5,009
Posted By 142 guy
Presumably the reference means a B20F head? ...

Presumably the reference means a B20F head? If so that probably has the best exhaust ports of any factory B20 and provide a better starting point for future porting work than other heads.
...
Forum: performance & modifications 01-26-2021, 11:14 PM
Replies: 60
Views: 5,009
Posted By 142 guy
A decent way down is normal for stock. When I...

A decent way down is normal for stock. When I assembled my B20E the pistons were on average 0.02" below the deck. Even with a 0.028 gasket from the B20B that piston height gives a quench depth...
Forum: performance & modifications 01-26-2021, 09:47 PM
Replies: 14
Views: 1,916
Posted By 142 guy
If you do the T5 path, make sure you get a T5...

If you do the T5 path, make sure you get a T5 with the correct set of ratios for the B20 and your differential. The spreads on some of the T5 boxes work well with big V8s, not so well with less...
Forum: maintenance & nonperformance 01-26-2021, 06:18 PM
Replies: 16
Views: 1,117
Posted By 142 guy
I am running the 280 Z regulator. It will run...

I am running the 280 Z regulator. It will run without the vacuum reference line attached; but, it will have a constant 36 psi fuel pressure compared to the 30 psi for the 1972 B20F. The flow rates...
Forum: aftermarket engine management 01-26-2021, 05:58 PM
Replies: 26
Views: 2,589
Posted By 142 guy
I have seen the Microsquirt wiring instructions...

I have seen the Microsquirt wiring instructions which say connect all the sensor grounds to pin 20. Its not a particularly good design; but, it will work if you make the single connection from pin...
Forum: maintenance & nonperformance 01-26-2021, 03:16 PM
Replies: 16
Views: 1,117
Posted By 142 guy
JohnMc's advice is correct. Up to 1971 the B20E...

JohnMc's advice is correct. Up to 1971 the B20E used a firewall mounted 2 port regulator and in 1972 Volvo / Bosch switched to the three port regulator. With a 5/16" Tee fitting you can use the...
Forum: aftermarket engine management 01-26-2021, 02:33 PM
Replies: 26
Views: 2,589
Posted By 142 guy
Does mean that you have a dedicated ground...

Does mean that you have a dedicated ground wire running from the MAP sensor to a dedicated ground pin on the MS or does it mean you have a shared sensor ground back to the MS? Sharing grounds is...
Forum: aftermarket engine management 01-25-2021, 06:51 PM
Replies: 26
Views: 2,589
Posted By 142 guy
Do you ground your MAP sensor at the intake...

Do you ground your MAP sensor at the intake manifold or do you run an isolated ground all the way back to the MS box? If you don't run an isolated ground back to the MS box and if you damaged the...
Forum: aftermarket engine management 01-24-2021, 03:40 PM
Replies: 26
Views: 2,589
Posted By 142 guy
Vcc is slightly isolated from Vref for transient...

Vcc is slightly isolated from Vref for transient voltages by L1. Vref should be further clamped by Zener D7 to somewhere around 6.3 volts. If Vref inside the MS box is getting significantly above...
Forum: maintenance & nonperformance 01-20-2021, 06:42 PM
Replies: 6
Views: 1,057
Posted By 142 guy
I have a 1971 B20E with the 82 C thermostat. The...

I have a 1971 B20E with the 82 C thermostat. The thermostat starts to open at 82C and is not fully open until around 90 C. Keep in mind that on the B20 the temperature gauge is located at the back...
Forum: projects & restorations 01-15-2021, 11:34 AM
Replies: 196
Views: 79,464
Posted By 142 guy
The change in ride height does alter front camber...

The change in ride height does alter front camber so does change the steering geometry. If you want the steering geometry to be the same as before the spring change you need a re alignment.

When...
Forum: maintenance & nonperformance 01-13-2021, 11:59 AM
Replies: 6
Views: 1,491
Posted By 142 guy
You have my sympathies! Long ago I set about...

You have my sympathies!

Long ago I set about to rebuild the distributor on my B20E which required removal of a similar pin in order to replace the distributor shaft bushings. My efforts resulted...
Forum: maintenance & nonperformance 01-11-2021, 01:51 PM
Replies: 9
Views: 1,196
Posted By 142 guy
A previous owner may have permanently wired up...

A previous owner may have permanently wired up the pump to fix a problem with the wiring or a failed 'pump run' signal from the PCM. If you can remove the relay and the pump still runs that would...
Forum: maintenance & nonperformance 01-11-2021, 01:04 PM
Replies: 8
Views: 1,733
Posted By 142 guy
Covercraft and Weathertech list custom fit covers...

Covercraft and Weathertech list custom fit covers for the 122. They start at around $300. I suspect that most of the other custom fit vendors will list the Amazon. The only thing to be aware of...
Forum: maintenance & nonperformance 01-11-2021, 12:55 PM
Replies: 9
Views: 1,196
Posted By 142 guy
First off, something is screwy. When you switch...

First off, something is screwy. When you switch the ignition to run the PCM would switch the fuel pump on for a short pulse of perhaps 2 - 4 seconds to prime the fuel system and then shuts itself...
Forum: aftermarket engine management 01-01-2021, 01:18 PM
Replies: 11
Views: 1,319
Posted By 142 guy
SMD repair on low pin count chips isn't that bad....

SMD repair on low pin count chips isn't that bad. The biggest hassle is getting the old chip off unless you have a hot air rework station. Sparkfun or Adafruit have a tutorial on soldering in SMD...
Forum: maintenance & nonperformance 12-30-2020, 11:52 AM
Replies: 7
Views: 1,137
Posted By 142 guy
Having done the 140 brake bleed I encourage you...

Having done the 140 brake bleed I encourage you to follow Redwood Chairs's recommendations around using a pressure bleeder. You don't need the full Motive kit. A garden pump sprayer as a pressure...
Forum: performance & modifications 12-11-2020, 06:55 PM
Replies: 11
Views: 1,864
Posted By 142 guy
Information on B18 and B20 cam grinds. ...

Information on B18 and B20 cam grinds.

http://www.1800philes.com/ianr/_superlist_grinds.html

If you measure at 0.050" lift the durations are effectively identical and the maximum lifts are...
Forum: maintenance & nonperformance 12-10-2020, 09:19 PM
Replies: 13
Views: 1,381
Posted By 142 guy
As a side note, the two sets of contacts are not...

As a side note, the two sets of contacts are not associated with the injector 'batches' (1&4 and 2&3 on a 4 cyl engine). As I recall the speed input signal to the D jet is effectively an RS flip...
Forum: maintenance & nonperformance 12-10-2020, 09:10 PM
Replies: 13
Views: 1,381
Posted By 142 guy
The engine coolant temperature sensor would be a...

The engine coolant temperature sensor would be a good thing to check and relatively easy to do. That said, you can get a good read on whether the sensor may be the problem or a problem by pulling...
Forum: maintenance & nonperformance 12-10-2020, 12:53 AM
Replies: 13
Views: 1,381
Posted By 142 guy
Some details can be helpful. Is this car new to...

Some details can be helpful. Is this car new to you or have you had the car for a while and the problem emerged all of a sudden? Are the basics such as the spark plugs, fuel filter, air filter,...
Forum: maintenance & nonperformance 12-04-2020, 06:05 PM
Replies: 28
Views: 3,322
Posted By 142 guy
The people who are fans of the molasses rust...

The people who are fans of the molasses rust removal treatment buy the 1-5 gal pails of animal feed molasses. They also have lots of patience because if you have significant rust the molasses...
Forum: maintenance & nonperformance 12-03-2020, 12:38 PM
Replies: 28
Views: 3,322
Posted By 142 guy
I vote for the Rad shop option if you can find a...

I vote for the Rad shop option if you can find a rad shop that still does this.

Where I live the rad shops no longer offered this service. As others have suggested, I ended up using the POR 15...
Forum: maintenance & nonperformance 11-28-2020, 12:53 AM
Replies: 9
Views: 1,198
Posted By 142 guy
Your distributor has the interesting retrofit of...

Your distributor has the interesting retrofit of a zerk fitting in place of the original oiler. Makes me wonder if the shaft bearings might be a little past it.

This being Turbobricks, I am...
Forum: projects & restorations 11-25-2020, 01:11 AM
Replies: 253
Views: 192,482
Posted By 142 guy
With the headlights on, check the voltage at the...

With the headlights on, check the voltage at the bulbs. The Amazon headlight wiring arrangement is marginal. Supplying the headlights through dedicated fuses and relays from the Battery +...
Forum: performance & modifications 11-20-2020, 06:35 PM
Replies: 30
Views: 4,286
Posted By 142 guy
If you go to Speedway Motors, or JEGS or ..... ...

If you go to Speedway Motors, or JEGS or ..... you can find electric fan controllers. If your radiator tank does not have a fitting for an RTD some of these controllers come with a little rubber...
Forum: maintenance & nonperformance 11-18-2020, 03:47 PM
Replies: 12
Vintage: 140 battery
Views: 2,062
Posted By 142 guy
Slightly off topic. That radiator 'looks' to be...

Slightly off topic. That radiator 'looks' to be aluminum and that top flange definitely confirms not OEM. Is it a transplant from some other vehicle or did you get a custom fabrication from...
Forum: performance & modifications 11-12-2020, 01:19 AM
Replies: 8
Views: 1,986
Posted By 142 guy
That center console is not for the 1972 and...

That center console is not for the 1972 and earlier cars with the truck shifter. The back part of the console appears to be raised like it was meant for an armrest which was never on the 1972 and...
Forum: maintenance & nonperformance 11-01-2020, 04:23 PM
Replies: 8
Views: 1,517
Posted By 142 guy
Depends on your distinction between cannot and...

Depends on your distinction between cannot and should not. Cannot perhaps implies immediate non operation or failure. Should not perhaps provides some flexibility in when failure will occur and...
Forum: maintenance & nonperformance 10-30-2020, 05:53 PM
Replies: 8
Views: 1,517
Posted By 142 guy
If you are going to do that, select your hose...

If you are going to do that, select your hose carefully. The hoses meant for complete immersion in fuel have a different outside jacket. If you check the Gates website and other vendors they will...
Forum: aftermarket engine management 10-29-2020, 05:46 PM
Replies: 18
Views: 2,798
Posted By 142 guy
Did it go to a really low AFRs and stay there? ...

Did it go to a really low AFRs and stay there? Then you are correct that you have a new / different problem than your original hot restart problem. If the AFRs went low following the restart;...
Forum: aftermarket engine management 10-29-2020, 05:39 PM
Replies: 18
Views: 2,798
Posted By 142 guy
My 1971 B20E has an MS2 Extra retrofit using a...

My 1971 B20E has an MS2 Extra retrofit using a Yoshifab CAS adapter for crank and cam signals; but, other than a stupid Patriot header is a stock B20E with a D cam. With the target AFR set at 14.7...
Forum: aftermarket engine management 10-28-2020, 05:25 PM
Replies: 18
Views: 2,798
Posted By 142 guy
That is what I did. My ASE taper is a Vee...

That is what I did.

My ASE taper is a Vee curve. It bottoms out around 60 C at 215 and then increases in a straight line to 413 at 90 C. My ASE adder bottoms out at 60 C at 20% and then...
Forum: aftermarket engine management 10-28-2020, 02:17 PM
Replies: 18
Views: 2,798
Posted By 142 guy
The Volvo B20 E and F are prone to a problem...

The Volvo B20 E and F are prone to a problem called hot injector syndrome (HIS). If the injectors have heat soaked on shut down, following restart the flow rate through the injector is reduced...
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