How Hot the Shock? - Pirate4x4.Com : 4x4 and Off-Road Forum

irb4ur · 10-22-2006, 01:07 PM

I have heard that Baja shocks get super hot. Can anyone put that in degrees F for me?

Shaffers Offroad · 10-22-2006, 01:11 PM

Quote:

Originally Posted by irb4ur

I have heard that Baja shocks get super hot. Can anyone put that in degrees F for me?

I have had my shocks get over 400 degrees

But at about 275 -300 they start to fade

irb4ur · 10-22-2006, 01:22 PM

Quote:

Originally Posted by SHAFFERS OFFROAD

I have had my shocks get over 400 degrees

But at about 275 -300 they start to fade

Ouch! I thought that maybe I could check the temperature by applying my tongue--maybe not.

Do the seals hold up okay at those temperatures? And, do external bypass cylinder oil coolers help?

TRD · 10-22-2006, 01:25 PM

Mr Shaffer.

Where (on the shock) and how are you measuring those temps?

*and what shocks? Brand, Size, Style

Thanks

JESSE_at_TLT · 10-22-2006, 05:52 PM

There was a good discussion about this over on RDC a while ago. Here's a link.

Beat95YJ · 10-22-2006, 07:07 PM

Quote:

Originally Posted by JESSE_at_TLT

There was a good discussion about this over on RDC a while ago. Here's a link.

Thanks.

Mike,

Are you using temp strips or something more sophisticated to determine the temp of the shock?

Also Where on the shock are you recording temps?

65Chevy4x4 · 10-22-2006, 07:14 PM

the shocks bodies on my shocks easily reach 200 but the res stays around 150 or less.

Lance · 10-22-2006, 07:30 PM

I'm sure he's using a laser temp gauge.

TRD · 10-22-2006, 07:33 PM

Nice link Jesse!

I cant believe someone was using emulsion shocks in the desert

MIKE S · 10-22-2006, 07:34 PM

Quote:

Originally Posted by Beat95YJ

Thanks.

Mike,

Are you using temp strips or something more sophisticated to determine the temp of the shock?

Also Where on the shock are you recording temps?

When we pit we will have someone check with a temp gun. Not the best way but it would tell us if changes we had made was for the best or not.

Beat95YJ · 10-22-2006, 07:43 PM

Thanks. What brand of shocks are you running? According to the post on rdc the heat gun may not work well with Bilsteins or newer SAW. I always use temp strips because that's what I have access to. I do not like the fact that they only show peak temp. I will be adding realtime data logging to a truck at work for this very reason.

You may want to have your guy check them near the rodguide as that seems to be the hottest part when we are durability testing shocks.

irb4ur · 10-22-2006, 07:56 PM

Heat strips sound like a good choice, but Max. Temp. only measurements. The reason I asked is that I had one shock that I rebuilt that showed evidence of a hot spot: about 1/4" Dia. area of the brass rod bearing was melted. Brass melts at almost 1700 F. The shaft and seals were okay, so the hot spot must have been confined to a local spot only. It looked like the heat was trapped and couldn't dissipate to the outside. I plan to machine cooling fins into the housing that holds the brass bearing.

MIKE S · 10-22-2006, 08:30 PM

Quote:

Originally Posted by Beat95YJ

Thanks. What brand of shocks are you running? According to the post on rdc the heat gun may not work well with Bilsteins or newer SAW. I always use temp strips because that's what I have access to. I do not like the fact that they only show peak temp. I will be adding realtime data logging to a truck at work for this very reason.

You may want to have your guy check them near the rodguide as that seems to be the hottest part when we are durability testing shocks.

I had bilsteins 2.5's but now i have 3"Radflo's on the front

BigLittleToyota · 10-22-2006, 11:10 PM

There's no way a shock got even remotely close to 1000, not to mention 1700 degrees. It was warped/damaged because the temp was increased and there was rubbing.

Another thing, reservoirs are not intended to cool the shocks down.

You rockcrawler guys should stick to the rocks and leave the highspeed man stuff to us. When you guys are grown up enough, come on over to www.dezertrangers.com

JESSE_at_TLT · 10-22-2006, 11:38 PM

Quote:

Originally Posted by BigLittleToyota

You rockcrawler guys should stick to the rocks and leave the highspeed man stuff to us. When you guys are grown up enough, come on over to www.dezertrangers.com

Grown up....................................dezertranger s?

fj40forlife · 10-22-2006, 11:42 PM

Yes they get hot. I had to change a tire. and the tire was next to the shock. And gave me a litter burn

Weasel · 10-22-2006, 11:48 PM

Quote:

Originally Posted by BigLittleToyota

There's no way a shock got even remotely close to 1000, not to mention 1700 degrees. It was warped/damaged because the temp was increased and there was rubbing.

Another thing, reservoirs are not intended to cool the shocks down.

You rockcrawler guys should stick to the rocks and leave the highspeed man stuff to us. When you guys are grown up enough, come on over to www.dezertrangers.com

stuff it, so what are they for. Looking cool?

JESSE_at_TLT · 10-22-2006, 11:55 PM

No, I think he's right about the temperatures and he's definitely right about the reservoirs.

JESSE_at_TLT · 10-22-2006, 11:58 PM

Most shocks would shit their pants when the temperature gets up past 400 to 500-degrees and reservoirs have a dividing piston in them to keep the shock fluid from mixing with the nitrogen, not to keep the shock cool.

MIKE S · 10-23-2006, 01:21 AM

Quote:

Originally Posted by BigLittleToyota

There's no way a shock got even remotely close to 1000, not to mention 1700 degrees. It was warped/damaged because the temp was increased and there was rubbing.

Another thing, reservoirs are not intended to cool the shocks down.

You rockcrawler guys should stick to the rocks and leave the highspeed man stuff to us. When you guys are grown up enough, come on over to www.dezertrangers.com

So are you racing the 1000?

Lance · 10-23-2006, 07:09 AM

Quote:

Originally Posted by BigLittleToyota

You rockcrawler guys should stick to the rocks and leave the highspeed man stuff to us. When you guys are grown up enough, come on over to www.dezertrangers.com

Chase2 · 10-23-2006, 09:02 AM

Quote:

Originally Posted by BigLittleToyota

You rockcrawler guys should stick to the rocks and leave the highspeed man stuff to us. When you guys are grown up enough, come on over to www.dezertrangers.com

Typical Dezert Ranger "Flatbiller" playground smack. DGAF except to talk crap.

Weasel · 10-23-2006, 11:40 AM

Quote:

Originally Posted by JESSE_at_TLT

Most shocks would shit their pants when the temperature gets up past 400 to 500-degrees and reservoirs have a dividing piston in them to keep the shock fluid from mixing with the nitrogen, not to keep the shock cool.

I'm not saying he isn't right, but if you want to spout off crap you should atleast explain it to back up your smack.

Why not put the piston in the shock? Moving it to a reaservoir does what, increases the oil capacity of the shocks?

MattyB4x4 · 10-23-2006, 11:57 AM

It seems that the extra oil capacity would, in the end make a cooler shock. however i don't know shiat, but just throwing that out there.

JESSE_at_TLT · 10-23-2006, 11:57 AM

Sometimes they do put the dividing piston inside the shock. That's called an internal reservoir as opposed to an external reservoir. The biggest difference is that if the shock is using an internal reservoir, the eye-to-eye dimensions of the shock must be longer.

10-22-2006, 01:07 PM	#1 (permalink)
irb4ur Granite Guru Join Date: Sep 2003 Member # 22641 Location: USA Georgia Posts: 509	How Hot the Shock? I have heard that Baja shocks get super hot. Can anyone put that in degrees F for me?

10-22-2006, 01:25 PM	#4 (permalink)
TRD Zeus of the Sluice Join Date: Nov 2001 Member # 8286 Location: Costa Mesa, Ca Posts: 4,684	Mr Shaffer. Where (on the shock) and how are you measuring those temps? and what shocks? Brand, Size, Style Thanks __________________ -Ryan Last edited by TRD; 10-22-2006 at 01:27 PM.*

10-22-2006, 05:52 PM	#5 (permalink)
JESSE_at_TLT fishingwithdynamite Join Date: May 2004 Member # 30721 Location: on the road Posts: 3,140	There was a good discussion about this over on RDC a while ago. Here's a link. __________________ GatosBros · Crux Studio · Trails Less Traveled

10-22-2006, 07:33 PM	#9 (permalink)
TRD Zeus of the Sluice Join Date: Nov 2001 Member # 8286 Location: Costa Mesa, Ca Posts: 4,684	Nice link Jesse! I cant believe someone was using emulsion shocks in the desert __________________ -Ryan

10-22-2006, 07:43 PM	#11 (permalink)
Beat95YJ Registered User Join Date: Aug 2003 Member # 22176 Location: Redondo Beach Posts: 8,745	Thanks. What brand of shocks are you running? According to the post on rdc the heat gun may not work well with Bilsteins or newer SAW. I always use temp strips because that's what I have access to. I do not like the fact that they only show peak temp. I will be adding realtime data logging to a truck at work for this very reason. You may want to have your guy check them near the rodguide as that seems to be the hottest part when we are durability testing shocks. __________________ I can break a steel ball in a rubber room!

10-22-2006, 07:14 PM	#7 (permalink)
65Chevy4x4 Rock God Join Date: Oct 2004 Member # 37016 Location: San Luis Obispo, CA Posts: 2,138	the shocks bodies on my shocks easily reach 200 but the res stays around 150 or less.

10-22-2006, 07:30 PM	#8 (permalink)
Lance Administrator Join Date: Jun 1996 Member # 1 Location: El Dorado Hills, CA Posts: 18,739 Blog Entries: 1	I'm sure he's using a laser temp gauge.

10-22-2006, 07:56 PM	#12 (permalink)
irb4ur Granite Guru Join Date: Sep 2003 Member # 22641 Location: USA Georgia Posts: 509	Heat strips sound like a good choice, but Max. Temp. only measurements. The reason I asked is that I had one shock that I rebuilt that showed evidence of a hot spot: about 1/4" Dia. area of the brass rod bearing was melted. Brass melts at almost 1700 F. The shaft and seals were okay, so the hot spot must have been confined to a local spot only. It looked like the heat was trapped and couldn't dissipate to the outside. I plan to machine cooling fins into the housing that holds the brass bearing.

10-22-2006, 11:10 PM	#14 (permalink)
BigLittleToyota Registered User Join Date: Mar 2006 Member # 68824 Posts: 83	There's no way a shock got even remotely close to 1000, not to mention 1700 degrees. It was warped/damaged because the temp was increased and there was rubbing. Another thing, reservoirs are not intended to cool the shocks down. You rockcrawler guys should stick to the rocks and leave the highspeed man stuff to us. When you guys are grown up enough, come on over to www.dezertrangers.com

10-22-2006, 11:42 PM	#16 (permalink)
fj40forlife Registered User Join Date: Feb 2006 Member # 67882 Location: Orange County Posts: 2,324	Yes they get hot. I had to change a tire. and the tire was next to the shock. And gave me a litter burn __________________ 120 fabrication Two fj40s on 60s

10-22-2006, 11:55 PM	#18 (permalink)
JESSE_at_TLT fishingwithdynamite Join Date: May 2004 Member # 30721 Location: on the road Posts: 3,140	No, I think he's right about the temperatures and he's definitely right about the reservoirs. __________________ GatosBros · Crux Studio · Trails Less Traveled

10-22-2006, 11:58 PM	#19 (permalink)
JESSE_at_TLT fishingwithdynamite Join Date: May 2004 Member # 30721 Location: on the road Posts: 3,140	Most shocks would shit their pants when the temperature gets up past 400 to 500-degrees and reservoirs have a dividing piston in them to keep the shock fluid from mixing with the nitrogen, not to keep the shock cool. __________________ GatosBros · Crux Studio · Trails Less Traveled

10-23-2006, 11:57 AM	#24 (permalink)
MattyB4x4 Rock God Join Date: Jul 2004 Member # 32726 Location: Atlanta, GA Posts: 1,749	It seems that the extra oil capacity would, in the end make a cooler shock. however i don't know shiat, but just throwing that out there. __________________ 5/8 Yotabuggy - duals + 4.7, 5.29's, locked, 40's, linked rear/fox airs, shift knob ΜΟΛΩΝ ΛΑΒΕ

10-23-2006, 11:57 AM	#25 (permalink)
JESSE_at_TLT fishingwithdynamite Join Date: May 2004 Member # 30721 Location: on the road Posts: 3,140	Sometimes they do put the dividing piston inside the shock. That's called an internal reservoir as opposed to an external reservoir. The biggest difference is that if the shock is using an internal reservoir, the eye-to-eye dimensions of the shock must be longer. __________________ GatosBros · Crux Studio · Trails Less Traveled

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