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eric8

520h Engine Wiring Harness Routing

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eric8

Regarding the engine wiring harness that goes up the dipstick tube.

I found my tractor to have it going up the tube and over the black heat exhaust heat shield (which seems safer but doesn't look as neat).

I've seen several pics like the attached that show it going up the tube and appearing to disappear under the exhaust heat shield, which would inevitably sandwich it between the exhaust pipe and cylinder head?

Which is the correct routing from the factory?

 

wiring.jpg

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peter lena

@eric8  https://www.google.com/search?q=wheel+horse+belt+guard+vent+hiles&rlz=1C1CHBF_enUS866US866&oq=wheel+horse++belt++guard+vent+hiles+&gs_lcrp=EgZj just a suggestion  for heat discharge  enhancement  , why not RE ROUTE  / ELIMINATE  CONSISTANT PROBLEM ? cable wrap  to a cooler / friendlier   area ?  local  metal  shop would make quick work of that  belt guard  furnace . lots of  related  picture  ideas . good opportunity  ,    pete   

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eric8
1 hour ago, peter lena said:

@eric8  https://www.google.com/search?q=wheel+horse+belt+guard+vent+hiles&rlz=1C1CHBF_enUS866US866&oq=wheel+horse++belt++guard+vent+hiles+&gs_lcrp=EgZj just a suggestion  for heat discharge  enhancement  , why not RE ROUTE  / ELIMINATE  CONSISTANT PROBLEM ? cable wrap  to a cooler / friendlier   area ?  local  metal  shop would make quick work of that  belt guard  furnace . lots of  related  picture  ideas . good opportunity  ,    pete   

 i'm not sure where the confusion came from where you thought I was referring to wiring going behind the belt guard?  I'm talking about the wiring harness that goes up the dipstick tube and under the black engine tin in the photo.  Does it go under the engine tin as shown in the photo or above it?

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lynnmor

Mine are squished under the intake manifold.

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Bill D
1 minute ago, lynnmor said:

Mine are squished under the intake manifold.

Same on my three Onans.  That is the factory wiring. 

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eric8

Appreciate it gents!

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sqrlgtr
27 minutes ago, lynnmor said:

Mine are squished under the intake manifold.

 

25 minutes ago, Bill D said:

Same on my three Onans.  That is the factory wiring. 

same on my 2 520's

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peter lena

@eric8  that belt guard  is like a hot air furnace ,  if its vented , it greatly  ENHANCES ENGINE HEAT DISCHARGE , that entire set up is known for  heat related wiring issues ,  yo are looking right at the  reason / cause of  issues .  sorry for  suggesting  ,   pete

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