Those who have replaced Water Pump to Thermostat Hose>>> - ZR-1 Net Registry Forums

ZR1Vette · 02-04-2009

This bugger>>

Have been back and forth on whether to replace (is the original) so I am leaning on replacing since I have got the ZR drained etc. For those who have done this job:
-PIA
-Not bad considering
-Special pointers/tips

Thanks

tomtom72 · 02-04-2009

I haven't done it yet. Cuisenartvette, Paul W, and -=Jeff=- I think have all done it.

I was doing my oil cooler lines, SAMCO hose kit, cleaning the cooling stack all at the same time. I guess by the time I got to that hose I ran out of steam, because I just couldn't get the W/P end to come loose. The thought crossed my mind that if at that point I removed the belt tensioner, acess to the W/P end of the hose would have been easier considering that everything else was out of the way. Oil lines, fan assembly, hoses from the I/H's & the metal + rubber top hoses were all out. I'm positive if I had pulled the tensioner I would have been home free to get my hands on that end of the lower hose.

-=Jeff=- · 02-04-2009

Nope, not yet, but planning on attacking that in upcoming weeks

A26B · 02-04-2009

Job becomes much easier if you have the right tool to release the clamps. There is a special radiator clamp tool made for the both the OEM round & flat tipped spring style radiator hose clamps, that will stay on the clamp when plier-like handle is squeezed to expand & release the clamp. The tool handles can be rotated to make access easier. Once the clamp is expanded/released, just slide it down onto the hose, out of the way. If you're going to trash the old hose, just make a cut through one side where it fits over the water pump & twist to break it loose. Little tougher to get loose if you don't want to cut the hose.

Removing the serpentine belt tensioner as recommended, does help

Zr1 Destroyer · 02-04-2009

Rotate the baked on hose back and forth with some channel locks and use the channel locks on the factory clamp aswell.....don't waist your time with trying to slide screw drivers in between things and busting knuckles!

ZR1Vette · 02-04-2009

Interesting... my ZR has screw type hose clamps only... appears the early production units had the screw type and then at some point GM/BG switched over to the clamp style described. I can get to both clamps (know this since I have tighten them)...just keep thinking 'not broke don't fix it'... thing????

Sgreg · 02-04-2009

Yeah, and unless you are going to be judged, get rid of the lower factory clamp in favor of screw type stainless model. If you are like me, I tore mine up getting it off anyway. Looks neat sitting on your table but when it is connected to a hose, oh baby !!!

Tyler Townsley · 02-04-2009

Quote:

Originally Posted by ZR1Vette

Interesting... my ZR has screw type hose clamps only... appears the early production units had the screw type and then at some point GM/BG switched over to the clamp style described. I can get to both clamps (know this since I have tighten them)...just keep thinking 'not broke don't fix it'... thing????

My 88 has clamp style which was used throughout the production run AFAIK.

Tyler

rhipsher · 02-04-2009

Not sure if you need this info but here it is anyway. If you buy the hose from Napa its part#7927 it's 10" long and you will need to transfer the spring over.

jonszr1 · 02-04-2009

thought to post this if any of you are tight for cash or cant find a replacement hose i have found that a napa hose 7927 will work perfect to replace this hose you just have to transfer the spring ,cover and trim 4 inches off one end you can use your exsisting hose to double ck the trimming . hope this helps someone

02-04-2009	#1
ZR1Vette Join Date: Dec 2007 Location: Reston, Virginia Posts: 931	Those who have replaced Water Pump to Thermostat Hose>>> This bugger>> Have been back and forth on whether to replace (is the original) so I am leaning on replacing since I have got the ZR drained etc. For those who have done this job: -PIA -Not bad considering -Special pointers/tips Thanks __________________ Michael :cheers: [I][SIZE="2"]1990 RED on RED #566[/SIZE][/I] [I][SIZE="2"]WAZOO MEMBER[/I][/SIZE]

02-04-2009	#2
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,637	Re: Those who have replaced Water Pump to Thermostat Hose>>> I haven't done it yet. Cuisenartvette, Paul W, and -=Jeff=- I think have all done it. I was doing my oil cooler lines, SAMCO hose kit, cleaning the cooling stack all at the same time. I guess by the time I got to that hose I ran out of steam, because I just couldn't get the W/P end to come loose. The thought crossed my mind that if at that point I removed the belt tensioner, acess to the W/P end of the hose would have been easier considering that everything else was out of the way. Oil lines, fan assembly, hoses from the I/H's & the metal + rubber top hoses were all out. I'm positive if I had pulled the tensioner I would have been home free to get my hands on that end of the lower hose. __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

02-04-2009	#3
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,181	Re: Those who have replaced Water Pump to Thermostat Hose>>> Nope, not yet, but planning on attacking that in upcoming weeks __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978

02-04-2009	#4
A26B Join Date: Dec 2003 Location: Arcadia,OK Posts: 3,396	Re: Those who have replaced Water Pump to Thermostat Hose>>> Job becomes much easier if you have the right tool to release the clamps. There is a special radiator clamp tool made for the both the OEM round & flat tipped spring style radiator hose clamps, that will stay on the clamp when plier-like handle is squeezed to expand & release the clamp. The tool handles can be rotated to make access easier. Once the clamp is expanded/released, just slide it down onto the hose, out of the way. If you're going to trash the old hose, just make a cut through one side where it fits over the water pump & twist to break it loose. Little tougher to get loose if you don't want to cut the hose. Removing the serpentine belt tensioner as recommended, does help __________________ Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 *ZR-1*, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed.

02-04-2009	#5
Zr1 Destroyer Join Date: Oct 2005 Location: Candy Apple...yUmMy Posts: 1,137	Re: Those who have replaced Water Pump to Thermostat Hose>>> Rotate the baked on hose back and forth with some channel locks and use the channel locks on the factory clamp aswell.....don't waist your time with trying to slide screw drivers in between things and busting knuckles!

02-04-2009	#7
Sgreg Join Date: Aug 2006 Location: Texas Posts: 518	Re: Those who have replaced Water Pump to Thermostat Hose>>> Yeah, and unless you are going to be judged, get rid of the lower factory clamp in favor of screw type stainless model. If you are like me, I tore mine up getting it off anyway. Looks neat sitting on your table but when it is connected to a hose, oh baby !!! __________________ 1991 ZR-1, Black, Black, # 541

02-04-2009	#9
rhipsher Join Date: Aug 2008 Location: Houston, TX Posts: 2,319	Re: Those who have replaced Water Pump to Thermostat Hose>>> Not sure if you need this info but here it is anyway. If you buy the hose from Napa its part#7927 it's 10" long and you will need to transfer the spring over.

02-04-2009	#10
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,406	Re: Those who have replaced Water Pump to Thermostat Hose>>> thought to post this if any of you are tight for cash or cant find a replacement hose i have found that a napa hose 7927 will work perfect to replace this hose you just have to transfer the spring ,cover and trim 4 inches off one end you can use your exsisting hose to double ck the trimming . hope this helps someone