460 engine failure 800 miles street use
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69F100
QtrWarrior
FalconEh
bbf-falcon
rmcomprandy
maverick
466cj
kim
BOSS 429
butterbean
mgawat
15 posters
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Re: 460 engine failure 800 miles street use
Problem with these threads is all the important information needs to be pulled out of the poster. Wastes a lot of time and of course the OP gets annoyed.
Now that we established the head gasket was on right looking at the big burn out between 7 & 8 would say is safe that the spark plug wires were touching and was cross talk. Is easy enough to verify. Look at the wires for any burn marks. Failure started at 7 & 8 and was just progressing to 5 IMO.
They sell adjustable fuel pressure regulators that bolt to the stock fuel rail. Running a 30# injector on something calibrated for a 24# injector will not work. That is a 20% increase in fuel. Engine must have been pig rich.
Now that we established the head gasket was on right looking at the big burn out between 7 & 8 would say is safe that the spark plug wires were touching and was cross talk. Is easy enough to verify. Look at the wires for any burn marks. Failure started at 7 & 8 and was just progressing to 5 IMO.
They sell adjustable fuel pressure regulators that bolt to the stock fuel rail. Running a 30# injector on something calibrated for a 24# injector will not work. That is a 20% increase in fuel. Engine must have been pig rich.
466cj- Posts : 391
Join date : 2011-05-01
Location : San Antonio, TX.
Re: 460 engine failure 800 miles street use
mgawat wrote:how does an adjustable fuel regulator get mounted to a triangle plate as comes with an oem fuel regulator?
Three bolts
D. Sea- Posts : 2768
Join date : 2008-12-02
Age : 54
Location : Kentucky
Re: 460 engine failure 800 miles street use
the aftermarket adjustable fuel regulators I've seen come with a nipple not a plate and I can't see where there is any nipple associated with the OEM ones. Also;.l 7 and 8 spark plug wires were completely seperated and have no burn marks on them.
mgawat- Posts : 72
Join date : 2011-04-25
Age : 65
Location : Maine
Re: 460 engine failure 800 miles street use
I melted up a sbc head and burnt the gasket EXACTLY how you did years ago as a novice on an aggressive NOS tune. Car was pulling like f__k before it no pulled no more. lol. Lean and too much advance as was previously said. Good luck with the reassembly.
4thHorseman- Posts : 400
Join date : 2009-08-13
Location : Albuquerque, NM
cylinder look number 8
The other head was ready to let go also and rods showed predotanation signs on the bearings...Pretty much convinced faulty ECM did this
Last edited by mgawat on October 30th 2014, 3:55 pm; edited 1 time in total
mgawat- Posts : 72
Join date : 2011-04-25
Age : 65
Location : Maine
Re: 460 engine failure 800 miles street use
mgawat wrote:the aftermarket adjustable fuel regulators I've seen come with a nipple not a plate and I can't see where there is any nipple associated with the OEM ones. Also;.l 7 and 8 spark plug wires were completely seperated and have no burn marks on them.
Then you haven't seen enough of them. I know that BBK sells one and there are others.
Re: 460 engine failure 800 miles street use
One of these?
68galaxie- Posts : 349
Join date : 2010-04-13
Location : Edmonton AB
Re: 460 engine failure 800 miles street use
thank you...what is the manufacturer and number ?
mgawat- Posts : 72
Join date : 2011-04-25
Age : 65
Location : Maine
Re: 460 engine failure 800 miles street use
Lastly, How does one install a fuel gauge into the stock fuel rail circa 1995 7.5?
mgawat- Posts : 72
Join date : 2011-04-25
Age : 65
Location : Maine
Re: 460 engine failure 800 miles street use
Most simply use the shrader valve on the fuel rail. Otherwise you have to put a T in the delivery side before the fuel rail, wich involves cutting the stock braided steel Teflon lined fuel line. Using AN adapters and a T and then another AN adapter to factory rail.
kim- Posts : 700
Join date : 2009-06-27
Location : Tucson AZ
mgawat- Posts : 72
Join date : 2011-04-25
Age : 65
Location : Maine
Re: 460 engine failure 800 miles street use
mgawat wrote:thank you...what is the manufacturer and number ?
http://www.kirbanperformance.com/product/776/Mustang+BILLET+ALUMINUM+ADJUSTABLE+FUEL+PRESSURE+REGULATOR+%235005.html
68galaxie- Posts : 349
Join date : 2010-04-13
Location : Edmonton AB
Re: 460 engine failure 800 miles street use
thank you...part ordered. I appreciate the help...especially when some folks just want to give attitudes.
mgawat- Posts : 72
Join date : 2011-04-25
Age : 65
Location : Maine
Re: 460 engine failure 800 miles street use
Problem isn't the fuel pressure regulator. EFI is going to use the O2 output and cut injector pulse to keep it at 13-1 or as close as it can. Adjustable pressure regulators are very bad crutches for people who don't buy a large enough injector. 38 psi is common ford base fuel pressure, no vacuum. When you hook up vacuum then the pressure feed will reduce at idle and ramp back up to 38 psi at WOT or low vacuum
kim- Posts : 700
Join date : 2009-06-27
Location : Tucson AZ
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