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Old 05-10-2009, 02:23 PM   #1
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Default Protecting heater lines from DP

I have done some "googling" and now i have more questions than before. The problem is that my downpipe is in contact with my heater lines. I know that the DP is gonna get hot and melt them. What would be the best (affordable) effective solution to this. I have seen the header "wrap" stuff but not sure if that would keep the heat from melting my lines.
Alloy heat shield
was also looking at that but still would like a "professional" opinion.

Thanks
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Old 05-10-2009, 02:58 PM   #2
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Old 05-10-2009, 03:05 PM   #3
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Perfect! ordering right now
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Old 05-10-2009, 03:19 PM   #4
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Also you can pry/bend the heater hose as far toward the firewall as possible.
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Old 05-10-2009, 03:52 PM   #5
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Quote:
Originally Posted by 1redcanuck View Post
Also you can pry/bend the heater hose as far toward the firewall as possible.
Exactly. I used the top half of my jack handle on the heater pipe and just bent it as far as I could get it. For the wrap I got some reflective fiberglass wrap, prolly exactly like whats in the link above. I didn't click it.

I still want a heat shield though...
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Old 05-10-2009, 04:49 PM   #6
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Shielding is useless if they touch. They must not touch. Then you always need to wrap them.
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Old 05-10-2009, 05:23 PM   #7
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I am using exhaust wrap on my heater lines. One has a thin stainless shield on top of the wrap for abrasion protection since it is in direct contact with the header bung for the EGR. So far so good.
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Old 05-10-2009, 05:50 PM   #8
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Quote:
Originally Posted by wayne_curr View Post
Exactly. I used the top half of my jack handle on the heater pipe and just bent it as far as I could get it. For the wrap I got some reflective fiberglass wrap, prolly exactly like whats in the link above. I didn't click it.

I still want a heat shield though...
Good idea. Im doing my exhaust build right now (still...) ill get that out of the way. I wish i known that when i did my SG pipe. Probably could of ran in longer and eased it back into the flow
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Old 05-11-2009, 03:40 AM   #9
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So after deciding to use the jack pump as a lever to use to move the heater lines i slipped and banged the **** out of my elbow. The whole left side of my hand was numb for an hour. Just got back from the ER and i had a contusion. AND i got 2 days off!! Thanks wayne for the sweet idea. I get to finish my exhaust. With the pain meds they gave me i should be able to
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Old 05-11-2009, 04:19 PM   #10
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wow lol. No idea how you managed that. My jack handle has a huge inner diameter so the heater pipe went inside and there was no way for it to slip off.

Isn't a contusion just a bruise?
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Old 05-11-2009, 05:03 PM   #11
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Quote:
Originally Posted by 1redcanuck View Post
^ that.

and fiberglass weave from wirecare.com. Thats what I did
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Old 05-11-2009, 05:17 PM   #12
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This business of bending the heater lines kinda scares me...

I simply cut the hoses which go to the heater core as short as possible, so that they are pulled back away from the downpipe.

And they're covered in the same sleeve. Good stuff. Used it on my neighbor's KTM as well, which had a clear PVC hose running right next to the exhaust header. Worked a treat.
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Old 05-11-2009, 06:01 PM   #13
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Safety wire can also be used to pull the insulated line away from the DP.

Chris
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Old 05-11-2009, 06:07 PM   #14
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Not sure of your geometry, but you might also consider transitioning to beaded hard lines in the vicinity of the downpipe. The hard lines will have a greatly reduced outer diameter for the same inner diameter.
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Old 05-11-2009, 06:23 PM   #15
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I got cheap domestic car alternator heat shielding and cut it to size, then wire wrapped mine. Held up so far.
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Old 05-11-2009, 06:36 PM   #16
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Quote:
Originally Posted by wayne_curr View Post
wow lol. No idea how you managed that. My jack handle has a huge inner diameter so the heater pipe went inside and there was no way for it to slip off.

Isn't a contusion just a bruise?
Contusion is a "deep tissue bruise" with swelling and longer lasting pain and suffering. Had contusions on both arms after my accident... feels like a harsh workout soreness with much more tenderness.

Oh as far as the heat shielding:

HSP270200 - Reflect-A-Sleeve Reflective Hose & Wire Covering - 2" I.D X 3' Long - Solid Sewn Seam

Part#: HSP270200

Manufacturer Part#: 270200

(Qty: 1 x $22.02)



HSP203123 - Colored Sleeving - 25' Roll, Adjustable Inside Diameter:1/4" To 7/16" - Withstands 1200 Degrees F Continuous - Yellow

Part#: HSP203123

Manufacturer Part#: 203123

(Qty: 1 x $18.60)



HSP350008 - Thermal-Tie Stainless Steel "Zip Ties" - For Fastening Heat Wrap Etc. 8" Long, 8 Pieces

Part#: HSP350008

Manufacturer Part#: 350008

(Qty: 1 x $13.96)

Heatshield Products - Thermal and heat protective sleeving

I have been using this for my cars with no issues at all.

Cheers,
Prospero
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