Search results
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How hot is too hot?
Ty you proved my point that coolant bypass behind Tstat blocked helps a ton with a Tstat also functioning the warm up issue is almost null and void and the motor will run the set temp of the thermostat with no issues and it eleviates alot of overheating issues and stops the steam issue of...- CBRF3
- Post #50
- Forum: 6.9L IH & 7.3L IDI Diesels
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How hot is too hot?
all factory turbo model 6.5l were 18.1:1 our 7.3 / 6.9 idi's were 21.5:1 or 20.7:1 and the naturally aspirated 6.5l is 21.5:1 hopefully that gives you a idea not many of the non turbo 6.5 variants were used and if they were the non turbo variant they converted them to turbo 99% of time. the...- CBRF3
- Post #49
- Forum: 6.9L IH & 7.3L IDI Diesels
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How hot is too hot?
The thing is with our 6.9 / 7.3 idi's the bypass plugging I advised doesn't effect normal running temp it still runs the same normal temp range just takes a slight bit longer (1-2 miles further to hit normal operating temps ) to warm up after warmed up it runs in the perfect temp range exactly...- CBRF3
- Post #45
- Forum: 6.9L IH & 7.3L IDI Diesels
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How hot is too hot?
The problem is under extreme load aka towing along with upgrades for power and then you get a overheat. The flash steam will cause thermostat to close and then steam is sent directly into water pump thru the bypass because thermostat closed from steam flash cooling. This causes a thermal run...- CBRF3
- Post #44
- Forum: 6.9L IH & 7.3L IDI Diesels
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How hot is too hot?
True but our compression is much higher than the 6.5L and our motors have a thinner cylinder wall so we have less surface area to transfer the heat to the coolant and less buffer and our heads are a totally different beast to the 6.5L. The 6.5 had a issue due to lack of coolant passage size and...- CBRF3
- Post #40
- Forum: 6.9L IH & 7.3L IDI Diesels
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How hot is too hot?
I would add a oil bypass filter using the ear on the side of the block on drivers side as the feed then add a restrictor on the feed into the bypass filter mounting base. I like to slightly drill my fittings and insert a small motorcycle carb jet as the restrictor then on exit of the bypass run...- CBRF3
- Post #34
- Forum: 6.9L IH & 7.3L IDI Diesels
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Engine Oil Analysis In... Coolant?
from my understanding BioSynthetic 15-40 oil has a high sodium content its used as a detergeant and here is some good info for you to understand what things do in oil formulations. https://www.austincc.edu/wkibbe/lubrication.htm- CBRF3
- Post #12
- Forum: 6.9L IH & 7.3L IDI Diesels
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fuel tank advice
Nope the seal coating they use to seal these tanks from the factory https://www.por15.com/por-15-fuel-tank-sealer its good for diesel / gasoline and much more- CBRF3
- Post #26
- Forum: 6.9L IH & 7.3L IDI Diesels
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fuel tank advice
I re edited my post I messaged you the tank comes with all the hardware needed to convert it for under $100 only thing really need to modify is the sending unit stem length The dorman one i linked was for a older truck i put a large isuzu diesel in I didnt realize till after i linked it forgot...- CBRF3
- Post #20
- Forum: 6.9L IH & 7.3L IDI Diesels
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fuel tank advice
look up a bronco fuel tank gasoline version our sending unit fits directly into it and filler neck also https://www.amazon.com/Spectra-Premium-F8D-Fuel-Bronco/dp/B000C7QMGC/ref=sr_1_1?dchild=1&keywords=ford+bronco+38+gallon+tank&qid=1615939994&s=automotive&sr=1-1...- CBRF3
- Post #18
- Forum: 6.9L IH & 7.3L IDI Diesels
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Betsy the Worktruck
Yes I agree that extra wiring and odd ground issue at the external voltage regulator and the fusible link issues is why i always do the 3g or 10si/12si 1 wire alternator swap cleans up the wiring and opens up real estate for other things and helps declutter the wiring a bit and makes diagnosing...- CBRF3
- Post #309
- Forum: 6.9L IH & 7.3L IDI Diesels
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How much boost?
The question is how decompressed are you its a very fine line on what makes our motors hard to start been there and done this many times and well you need to do your research some stock pumps maxed out pump a substantial amount of fuel and can spike a turbo quick over driving it and well also...- CBRF3
- Post #13
- Forum: 6.9L IH & 7.3L IDI Diesels
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How much boost?
The issue is I believe the OP is after a daily driver so going crazy and saying there is no limit to amount of boost with studs is just asking to give him a sour taste in his mouth and future hatred for our motors and from other people following your said advice ( Studded as much as you want )...- CBRF3
- Post #11
- Forum: 6.9L IH & 7.3L IDI Diesels
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How much boost?
The point is I wouldn't trust anything over 20psi with just studs not for the headgasket but for the pistons / rings themselfs the compression is still to high the force on the ring lands is way to high and will quickly make the ring lands sloppy / loose causing alot of blowby / oil seapage...- CBRF3
- Post #8
- Forum: 6.9L IH & 7.3L IDI Diesels
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How much boost?
There is more to it than just head studs to allow for above 15psi boost even with intercooling unless you decompress our motors above 15PSI is risky yeah you may be able to do 20psi but when you get brave and hold it there and your pistons swell in the bore and essentially try to seize pinching...- CBRF3
- Post #4
- Forum: 6.9L IH & 7.3L IDI Diesels
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DB2 vs DB4 pump
well took some video of the old farm / work truck that am rebuilding ( 1 of my current projects ) today to show glow plugs deleted no intake heater and starts fine and is running on waste motor oil to boot and it was like 60f at time we topped out at like 70f today along with runs good even with...- CBRF3
- Post #59
- Forum: 6.9L IH & 7.3L IDI Diesels
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DB2 vs DB4 pump
let me know what you find out with your testing I will try to get more info on my nozzles when I get time currently got alot on my plate to deal with so when that is I do not know. I can agree with these nozzles cold starts are much much easier and quicker and it chugs much less in super cold...- CBRF3
- Post #58
- Forum: 6.9L IH & 7.3L IDI Diesels
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DB2 vs DB4 pump
I agree I simply don't have the specs and well its hard to get that stuff anymore I do not believe I have any of the paperwork anymore for these injectors used to they gave this stuff when you bought injector nozzles so you could set the proper height / orientation via different thickness of...- CBRF3
- Post #54
- Forum: 6.9L IH & 7.3L IDI Diesels
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DB2 vs DB4 pump
1750psi is my normal setting for stock nozzles but for these I run 1825psi and for all out performance 1900psi as for the injector nozzles themself look up and marine 5.9 370 nozzle theyre all made off the same specs use your noggin or do you need your hand held sorry just feel like your asking...- CBRF3
- Post #52
- Forum: 6.9L IH & 7.3L IDI Diesels
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DB2 vs DB4 pump
I linked the injector nozzles and explained everything step by step you have to completely delete the glowplugs for them to work properly you do the math I used the OEM style crush washer for our injector nozzles and machined the outside diameter of the cummins 5.9 370 marine injector nozzles to...- CBRF3
- Post #50
- Forum: 6.9L IH & 7.3L IDI Diesels
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DB2 vs DB4 pump
I could not agree more indirect injected vs direct injected the key take aways are compression ratio's higher compressions ratios mean are not as reliant on a turbo and in essence are more efficient and able to run alternative fuels easier because of the said higher compression also the things...- CBRF3
- Post #48
- Forum: 6.9L IH & 7.3L IDI Diesels
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DB2 vs DB4 pump
nice idea but a good external trans cooler is better because it can cool the fluid lower than the engine coolant temp making the fluid a bit more thicker ( aka more efficient and need less GPM flow ) to push the fan motor easier and with less issues of fluid breakdown keep in mind also as you...- CBRF3
- Post #46
- Forum: 6.9L IH & 7.3L IDI Diesels
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DB2 vs DB4 pump
its not alot honestly a small power steering pump can run them.- CBRF3
- Post #45
- Forum: 6.9L IH & 7.3L IDI Diesels
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DB2 vs DB4 pump
your welcome remember think outside of the box don't just run with the norm that will make you lazy and ordinary challenge your mind it will keep you witty / savy and will also make it to where you weigh your options and are more flexible to keep within a budget and more adaptable to find...- CBRF3
- Post #41
- Forum: 6.9L IH & 7.3L IDI Diesels
