Could a 1.3 bar radiator cap make my water pump gasket blow? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

chokudoriS13 · 08-07-2003, 10:56 PM

If so, then I am an idiot. I picked up a Cusco High Pressure radiator cap today (it came off an S13 front clip). After about 10 min. of driving, I overheated... Filled up with coolant, and made it about 10 miles before it leaked out again. This time I realized its leaking from the water pump area. I'm thinking its the housing gasket. Do you guys think the higher pressure (1.3 instead of the stock .8/.9) caused the gasket to go?

chokudoriS13 · 08-07-2003, 11:03 PM

The suspect:

chokudoriS13 · 08-08-2003, 06:10 AM

Update: took off the water pump... NO GASKET! Just minimal amounts of gasket sealer... I guess the previous owner had a cheap or shady mechanic. Obviously it didn't hold with the extra pressure...

uiuc240 · 08-08-2003, 07:54 AM

there is no OEM gasket for that...just RTV.

Eric

boosteds14 · 08-08-2003, 10:03 AM

I would not use it. greddy sells the 1.1Bar radiator cap and when i put that on my car, my water temp was all over the place, then i started to get coolant leaks EVERYWHERE.

DRFT · 08-08-2003, 10:46 AM

So your saying a greddy radiator cap can cause all that boosteds14?

chokudoriS13 · 08-08-2003, 12:00 PM

Quote:

Originally posted by boosteds14
I would not use it. greddy sells the 1.1Bar radiator cap and when i put that on my car, my water temp was all over the place, then i started to get coolant leaks EVERYWHERE.

Yeah, but you may have had the same issue (old gasket sealer letting the pressure escape). I wish more people with high pressure cap experience would reply. I don't want to put it back together only to have it pop on me again, and I don't have the stock cap (left it on the clip I got the Cusco from).

nightwalker · 08-08-2003, 12:02 PM

thats odd, when I put my Greddy high pressure cap on, my car actually ran a little cooler (that and it was coupled with redline water wetter) The temp. use to creep a little past the middle area, now it just stays right below it and doesn't even budge. Looks like you cooling systems need some tuning up.

boosteds14 · 08-08-2003, 12:05 PM

Quote:

Originally posted by DRFT
So your saying a greddy radiator cap can cause all that boosteds14?

Well I am not saying it will cause that but it happened to me.

When i put the stock one back on, the Temp was back to normal and all my leaks went away.(or course after loosening the leaks, sealing again, then retightening)

It also happened to one of my local customers which was also a KA-T. Yet on Hondas they work like a charm.

I dont know what to say.

boosteds14 · 08-08-2003, 12:08 PM

Quote:

Originally posted by nightwalker
thats odd, when I put my Greddy high pressure cap on, my car actually ran a little cooler (that and it was coupled with redline water wetter) The temp. use to creep a little past the middle area, now it just stays right below it and doesn't even budge. Looks like you cooling systems need some tuning up.

Ya it did lower the temp on this kids 93 240. And he had no problems with it and no leaks. I guess I had a bad experience with it.

OH Well, if it is working for you that is Great!!!

chokudoriS13 · 08-08-2003, 12:29 PM

weird... 1.3 is the lowest pressure cap for Cusco

PRESSURE MAX COOLANT TEMP
1.3 bar 105.0 deg cent
1.9 bar 110.3 deg cent
2.0 bar 112.6 deg cent
2.3 bar 126.5 deg cent

Got Sileighty? · 08-08-2003, 06:34 PM

dude just get an SR, and stop showing off that u have a CUSCO radiator cap hehehe jk.

on a serious note, change your oil already.

08-07-2003, 10:56 PM	#1
chokudoriS13 Zilvia FREAK! Join Date: Oct 2002 Location: Los Angeles, CA Age: 44 Posts: 1,022 Trader Rating: (0) Feedback Score: 0 reviews	Could a 1.3 bar radiator cap make my water pump gasket blow? If so, then I am an idiot. I picked up a Cusco High Pressure radiator cap today (it came off an S13 front clip). After about 10 min. of driving, I overheated... Filled up with coolant, and made it about 10 miles before it leaked out again. This time I realized its leaking from the water pump area. I'm thinking its the housing gasket. Do you guys think the higher pressure (1.3 instead of the stock .8/.9) caused the gasket to go? __________________ S13/86/Miatas/DR30/MX83/E36 M3/S60R/E30 M3 -gone! Now: Porsche 993/MK7 GTI

08-07-2003, 11:03 PM	#2
chokudoriS13 Zilvia FREAK! Join Date: Oct 2002 Location: Los Angeles, CA Age: 44 Posts: 1,022 Trader Rating: (0) Feedback Score: 0 reviews	The suspect: __________________ S13/86/Miatas/DR30/MX83/E36 M3/S60R/E30 M3 -gone! Now: Porsche 993/MK7 GTI

08-08-2003, 06:10 AM	#3
chokudoriS13 Zilvia FREAK! Join Date: Oct 2002 Location: Los Angeles, CA Age: 44 Posts: 1,022 Trader Rating: (0) Feedback Score: 0 reviews	Update: took off the water pump... NO GASKET! Just minimal amounts of gasket sealer... I guess the previous owner had a cheap or shady mechanic. Obviously it didn't hold with the extra pressure... __________________ S13/86/Miatas/DR30/MX83/E36 M3/S60R/E30 M3 -gone! Now: Porsche 993/MK7 GTI

08-08-2003, 07:54 AM	#4
uiuc240 Nissanaholic! Join Date: Apr 2002 Location: Naperville, IL Age: 46 Posts: 2,093 Trader Rating: (0) Feedback Score: 0 reviews	there is no OEM gasket for that...just RTV. Eric __________________ 2002 Mazda Protege5 1989 S13 w/SR20DET (sold)

08-08-2003, 10:03 AM	#5
boosteds14 Zilvia.net Advertiser Join Date: Jan 2002 Location: CIPmotorsports Age: 43 Posts: 1,612 Trader Rating: (0) Feedback Score: 0 reviews	I would not use it. greddy sells the 1.1Bar radiator cap and when i put that on my car, my water temp was all over the place, then i started to get coolant leaks EVERYWHERE. __________________ 240SXONE www.240SXMOTORING.com --- One Stop Shop for Your Nissan 240sx

08-08-2003, 10:46 AM	#6
DRFT Post Whore! Join Date: Apr 2003 Location: Pow Pow Age: 41 Posts: 3,744 Trader Rating: (0) Feedback Score: 0 reviews	So your saying a greddy radiator cap can cause all that boosteds14? __________________ ApexNetwork.Net Sacramento & Norcal Forum

08-08-2003, 12:02 PM	#8
nightwalker Nissanaholic! Join Date: Mar 2003 Location: Bay area Age: 46 Posts: 2,146 Trader Rating: (0) Feedback Score: 0 reviews	thats odd, when I put my Greddy high pressure cap on, my car actually ran a little cooler (that and it was coupled with redline water wetter) The temp. use to creep a little past the middle area, now it just stays right below it and doesn't even budge. Looks like you cooling systems need some tuning up. __________________ In life, we often cast the line of hope fishing for the best possible opportunity. Sometimes with enough effort, the things we catch are nothing short of amazing.

08-08-2003, 12:29 PM	#11
chokudoriS13 Zilvia FREAK! Join Date: Oct 2002 Location: Los Angeles, CA Age: 44 Posts: 1,022 Trader Rating: (0) Feedback Score: 0 reviews	weird... 1.3 is the lowest pressure cap for Cusco PRESSURE MAX COOLANT TEMP 1.3 bar 105.0 deg cent 1.9 bar 110.3 deg cent 2.0 bar 112.6 deg cent 2.3 bar 126.5 deg cent __________________ S13/86/Miatas/DR30/MX83/E36 M3/S60R/E30 M3 -gone! Now: Porsche 993/MK7 GTI

08-08-2003, 06:34 PM	#12
Got Sileighty? Zilvia Addict Join Date: Dec 2002 Location: SoCaL Age: 46 Posts: 761 Trader Rating: (0) Feedback Score: 0 reviews	dude just get an SR, and stop showing off that u have a CUSCO radiator cap hehehe jk. on a serious note, change your oil already.

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