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Kirk_Fisher
Jedi Hopeful
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I am rebuilding the carbs and I am thinking of going with the grose jets. Any thoughts?
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grose jets
- Thread starter Kirk_Fisher
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Keoke
Great Pumpkin
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Re: gross jets
Yes that has been reported. It seems that in some cases a preservative has been applied which is only removed if they are cleaned using acetone prior to installation. Additionally the very early designs used a ball and pin arrangement the pin would get jammed in the bore causing the valve to stick. Current designs use only the ball and work a treat. However, you simply can not beat a Ball valve not even on your water hose.---Keoke- /bcforum/images/%%GRAEMLIN_URL%%/grin.gif
Geo Hahn said:
Yes that has been reported. It seems that in some cases a preservative has been applied which is only removed if they are cleaned using acetone prior to installation. Additionally the very early designs used a ball and pin arrangement the pin would get jammed in the bore causing the valve to stick. Current designs use only the ball and work a treat. However, you simply can not beat a Ball valve not even on your water hose.---Keoke- /bcforum/images/%%GRAEMLIN_URL%%/grin.gif
bmurphy7369
Jedi Trainee
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Re: gross jets
I think we just had this discussion recently in Jaguar. I think if you look through late-June/ early July you'll find it and everyone seems to have the "love'em or hate'em" answer. I know that everyone I know used Grose jets on S.U. applications for the improved reliability. I believe there have been some updates since the mid-1980's, when I first used them on a TR3A. I have to say that I have never experienced any issue with them at all. I use them now on the Jaguar XJ6C and the simple design works great for the Zenith-Strombergs for me, as it always did in the S.U. carbs of my past. You could call Joe Curto (side-draft carb expert) for a definitive opinion, but around here, Grose jets are always recommended highly. I don't doubt that many have had some issues with them, but just want to put in a good word for them from my experience.
Brian
I think we just had this discussion recently in Jaguar. I think if you look through late-June/ early July you'll find it and everyone seems to have the "love'em or hate'em" answer. I know that everyone I know used Grose jets on S.U. applications for the improved reliability. I believe there have been some updates since the mid-1980's, when I first used them on a TR3A. I have to say that I have never experienced any issue with them at all. I use them now on the Jaguar XJ6C and the simple design works great for the Zenith-Strombergs for me, as it always did in the S.U. carbs of my past. You could call Joe Curto (side-draft carb expert) for a definitive opinion, but around here, Grose jets are always recommended highly. I don't doubt that many have had some issues with them, but just want to put in a good word for them from my experience.
Brian
bmurphy7369
Jedi Trainee
Offline
Re: gross jets
Not at all, Keoke. I would definitely recommend them as an upgrade, less troublesome product. Again, check with the professionals, but Grose is a good product.
/bcforum/images/%%GRAEMLIN_URL%%/cheers.gif
Keoke said:
Not at all, Keoke. I would definitely recommend them as an upgrade, less troublesome product. Again, check with the professionals, but Grose is a good product.
/bcforum/images/%%GRAEMLIN_URL%%/cheers.gif
MGTF1250Dave
Jedi Knight
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Re: gross jets
I have used grose jets in three cars with SU carburetors for the last twenty years. I like them because I find it easier to set the float lever. I have had the needle jam in the down position few times with the older style, granted this was after the car had been idle long enough for the bowls to go dry.
I have used grose jets in three cars with SU carburetors for the last twenty years. I like them because I find it easier to set the float lever. I have had the needle jam in the down position few times with the older style, granted this was after the car had been idle long enough for the bowls to go dry.
D
DougF
Guest
Guest
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Re: gross jets
I've never had a problem with them in 15 years I've running them in both cars. You will have to adjust your floats if you make the change.
I've never had a problem with them in 15 years I've running them in both cars. You will have to adjust your floats if you make the change.
dklawson
Yoda
Offline
Re: gross jets
I am in the "no" camp. Sorry Keoke, I'm not Irish and I'm not whispering.
I've run Grose Jets in both the Mini and the Triumph. On the Triumph they glued themselves shut over and over again. If I drove the car every day it probably wouldn't have happened. Regardless, the sticking was so predictable that dropping the float chambers off the Triumph's Strombergs became second nature.
On the Mini I had the opposite problem. One of the two Grose Jet valves never completely stopped.
I now run Viton tipped float valves in both cars. My email acquaintances in the U.K. seem to prefer to use the metal-on-metal (regular) float valves. Several of those guys take their new valves and "lap" them in using "toothpaste" before they install them in the carbs. Strange... but they swear by it.
I am in the "no" camp. Sorry Keoke, I'm not Irish and I'm not whispering.
I've run Grose Jets in both the Mini and the Triumph. On the Triumph they glued themselves shut over and over again. If I drove the car every day it probably wouldn't have happened. Regardless, the sticking was so predictable that dropping the float chambers off the Triumph's Strombergs became second nature.
On the Mini I had the opposite problem. One of the two Grose Jet valves never completely stopped.
I now run Viton tipped float valves in both cars. My email acquaintances in the U.K. seem to prefer to use the metal-on-metal (regular) float valves. Several of those guys take their new valves and "lap" them in using "toothpaste" before they install them in the carbs. Strange... but they swear by it.
foxtrapper
Jedi Trainee
Offline
Re: gross jets
I tried them once, maybe twice. Didn't mask the problem, so I had to fix it. Once I fixed the problem, things worked fine with either the grose jets or the more standard needle.
I tried them once, maybe twice. Didn't mask the problem, so I had to fix it. Once I fixed the problem, things worked fine with either the grose jets or the more standard needle.
OP
Kirk_Fisher
Jedi Hopeful
Offline
Re: gross jets
Ok, I am thoroughly confused now. Thanks all. /bcforum/images/%%GRAEMLIN_URL%%/smile.gif I think I will give them a try.
BTW, I need to vent for a minute. I ordered the carb master rebuild kit from Moss. The shipping was $19. WTH? I bet the box won't be as big as a shoe box.
Ok, I am thoroughly confused now. Thanks all. /bcforum/images/%%GRAEMLIN_URL%%/smile.gif I think I will give them a try.
BTW, I need to vent for a minute. I ordered the carb master rebuild kit from Moss. The shipping was $19. WTH? I bet the box won't be as big as a shoe box.
R
RonMacPherson
Guest
Guest
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Re: gross jets
I used Grose on my Tr6 in both the Zeniths and the SK's. Ain't gonna happen again. I'll stay with Viton.
Why didn't you use Tony Barnhill or one of the other Moss distributors that belong to BCF? Coulda saved you the shipping.
I used Grose on my Tr6 in both the Zeniths and the SK's. Ain't gonna happen again. I'll stay with Viton.
Why didn't you use Tony Barnhill or one of the other Moss distributors that belong to BCF? Coulda saved you the shipping.