Pesky Heater Hose (PHH) Hose Kit - 80 Series
Have you addressed the pesky heater hose issue on your 80 Series Land Cruiser? YOU NEED TO BEFORE ITS TOO LATE!!
Our kit comes with everything you need;
(1) Heavy Duty Silicone Hose
(2) Constant Tension Hose Clamps
(1) Jonesy's Sticker
Heat Shrink Technology
The polymeric bands (PBs) operate through a combination of elastic, thermoplastic memory and matched thermo-linear properties to obtain compression load.
The heat-sensitive material shrinks to conform to any shape of hose and housing when heat is applied and automatically readjusts every time the engine comes to operating temperature. After the engine is shut down, temperatures decrease. If ambient temperatures drop below freezing, the clamping force increases using the band's increased thermal contraction.
Testing involved the installation of clamps and bands over hose on an eight-position load/thermocouple cylinder. The entire assembly was cycled between -20¡F and +200¡F. The relative performance of the best performers in each category were evaluated through the first 10 thermal cycles at the lowest of eight zones around the hose (where a cold leak would first occur).
Compression at low temperature
An examination of load and temperature relationships at the hose stem interface for the three types of clamps revealed that CD clamps reached the no-load cold leak condition at about 45¡F after 10 cycles. Measurements taken throughout the testing shows each cycle's load trending downward, indicating a degradation in load.
SAC clamps reached the no-load cold leak condition at just below 0¡F. Although constant tension clamps expand and contract with the hose through temperature cycling, as the spring takes-up the clamp, the spring force is reduced.
The PB clamps were by far the best performer with a minimum 20 lb. load, even at -20¡F. A very recent development, these clamps are made of a material with similar thermal contraction properties as the hose wall, enabling the bands to create most of their clamping load at low temperatures. They also have thermal shrink forces built into them which allow the clamp to readjust itself when the engine goes through a heat cycle.
Laboratory results involving polymeric band clamps are supported by monitored fleet testing. There has yet to be a cold leak observed in monitored fleet tests using this method.
Conclusion
Overall, both metal and polymeric clamps were evaluated by Gates engineers for seven different characteristics using a standard A-F grading system (see Table 1). Polymeric bands measurably outperformed metal clamps in maintaining cooling system integrity throughout the operating temperature range and for other evaluated characteristics.
$20.00
Buy at;
http://www.jonesysoffroad.com/
For Questions Contact;
info@jonesys.com
Watch our PHH replacement video here;
http://www.youtube.com/watch?v=km7pl4qQ9ng
Have you addressed the pesky heater hose issue on your 80 Series Land Cruiser? YOU NEED TO BEFORE ITS TOO LATE!!
Our kit comes with everything you need;
(1) Heavy Duty Silicone Hose
(2) Constant Tension Hose Clamps
(1) Jonesy's Sticker
Heat Shrink Technology
The polymeric bands (PBs) operate through a combination of elastic, thermoplastic memory and matched thermo-linear properties to obtain compression load.
The heat-sensitive material shrinks to conform to any shape of hose and housing when heat is applied and automatically readjusts every time the engine comes to operating temperature. After the engine is shut down, temperatures decrease. If ambient temperatures drop below freezing, the clamping force increases using the band's increased thermal contraction.
Testing involved the installation of clamps and bands over hose on an eight-position load/thermocouple cylinder. The entire assembly was cycled between -20¡F and +200¡F. The relative performance of the best performers in each category were evaluated through the first 10 thermal cycles at the lowest of eight zones around the hose (where a cold leak would first occur).
Compression at low temperature
An examination of load and temperature relationships at the hose stem interface for the three types of clamps revealed that CD clamps reached the no-load cold leak condition at about 45¡F after 10 cycles. Measurements taken throughout the testing shows each cycle's load trending downward, indicating a degradation in load.
SAC clamps reached the no-load cold leak condition at just below 0¡F. Although constant tension clamps expand and contract with the hose through temperature cycling, as the spring takes-up the clamp, the spring force is reduced.
The PB clamps were by far the best performer with a minimum 20 lb. load, even at -20¡F. A very recent development, these clamps are made of a material with similar thermal contraction properties as the hose wall, enabling the bands to create most of their clamping load at low temperatures. They also have thermal shrink forces built into them which allow the clamp to readjust itself when the engine goes through a heat cycle.
Laboratory results involving polymeric band clamps are supported by monitored fleet testing. There has yet to be a cold leak observed in monitored fleet tests using this method.
Conclusion
Overall, both metal and polymeric clamps were evaluated by Gates engineers for seven different characteristics using a standard A-F grading system (see Table 1). Polymeric bands measurably outperformed metal clamps in maintaining cooling system integrity throughout the operating temperature range and for other evaluated characteristics.
$20.00
Buy at;
http://www.jonesysoffroad.com/
For Questions Contact;
info@jonesys.com
Watch our PHH replacement video here;
http://www.youtube.com/watch?v=km7pl4qQ9ng
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