MGB & GT Forum

Question- Is there a reason to choose the BPNW uprated cylinder over the standard cylinder?

In my experience with the hydraulic parts, you pay for what you get; in this case lower price, lower quality, lower expectations.

I find the premium hydraulic parts seem to be better machined, maybe better materials.
The “standard “ parts don’t seem to last very long.

The difference between standard and premium may not matter as much for other parts but imo it will make a difference for the hydraulic system parts!

Guess I should have phrased my question better. I am asking about personal experience with these particular items.
Generally I agree, but "more $ is better" is not always true, especially in this day and time.



Edited 1 time(s). Last edit at 2024-04-19 06:54 AM by MGBGM1977.

for clutch slave cylinder, the premium (normally lockheed) is worth it because it has a "button" on the rear of the cylinder so it doesn't rock back and forth under pressure. Also hydraulics are one place I personally don't like cheaping out on, brakes or clutch.

Although not from BPNW I've used one of the "GMC1007" master cyl's with the smaller reservoir on an '80 MGB. It was much more difficult to bleed (one stroke of the pedal and the reservoir was basically empty) and the clutch disc (new) engaged much closer to the floor. Clutch hose and slave cyl were new as well. It did "work" but I would not use another one with the small reservoir. Don't know if the replacement master cyl had anything to do with performance of slave cyl.

I rebuilt the OEM Lockheed on my '79 and it preforms just like original - much better in my opinion. Curious to hear if the new Lockheed cyls are as good as original. Cost for re-sleeving the original is high.



Edited 1 time(s). Last edit at 2024-04-19 08:08 AM by Tbird.

Anthony
I have no experience with these current offerings.

If you are asking about long time dependability then best to have the OE , (make sure it is ) slave cylinder sleeved and install a quality kit.

A great many owners just want to drive around a few 100 miles a season, and put little emphasis on longevity.

Low price becoming the deciding factor, although I suspect neither are particularly expensive? .

B

---

Life's most persistent and urgent question is, "What are you doing for others?"



Edited 1 time(s). Last edit at 2024-04-19 08:17 AM by riley1489.

Talk to Basil. He will give the straight truth

---

Oil leak?? What oil leak? That puddle under the car is just sweat from all that horsepower!!

Law of Mechanical Repair - After your hands become coated with grease, your nose will itch and you'll have to pee.

Reading further on the BPNW info I see the slave is "like" OE not actually Lockheed. I thought the uprated ones were Lockheed like the master cyls. Interesting......

If the old slave bore is pretty clean, then rebuild it.

Did anyone notice the upraised slave cylinder’s bleed screw is lower than the intake hose., whereas the less expensive part’s bleed screw is higher?

They are often shipped with the bleeder in the wrong port, only to make packaging easier. The threads are the same. If you referring to BPNW images the uprated is correct, but image is upside down.

---

Ben
1966 MGB Tourer
1973 MGB Tourer

NONE of them are "Lockheed." The ones that get advertised as Lockheed just come from a company that pays a licensing fee to the company that owns the Lockheed name (and sometimes they just use the name without permission). There is no Lockheed auto parts company and hasn't been for many years. It's just advertising and a way to overcharge for a box. The difference between the premium slave cylinder and the regular one is that the premium has 2 fluid channels (like original) so it's easier to bleed. The regular one has one fluid channel and can be difficult to bleed. If you go to the big seller they want $179.99 for the better one. I sell the same one for under $50 without the fancy packaging. Get the good one but don't get overcharged. Basil 707.762.0974 basiladams@yahoo.com

---

Basil C. Adams
1956 MGA Coupe (Show Car)
1957 MGA Roadster (Driver)
1958 MGA Coupe (Racecar)
1959 MGA Coupe (unrestored)
1960 MGA Coupe (unrestored)
1960 MGA Roadster (Driver)
MKIII Elva Courier (E1056)
1967 427 Cobra
1972 Alfa Romeo Montreal
A coupla late MGBs
1960 Austin Healy BN7
More Cars than Brains

I just bought one that costs triple than the cheapest ones. It’s supposedly updated with original design return slot and a base pad that keeps it more stable. Hopefully, I didn’t waste my money.

https://www.ebay.com/itm/171719975324

---

1977 MGB (White)
1977 MGB (Blue)

I posted these pics quite awhile back to show the difference between an original Lockheed slave cylinder and a URO branded slave cylinder. Things might have changed since I did this comparison in 2013, but the threaded inlet and bleed screw holes were different diameters and thus the bleed screw could not be relocated.

Bob

Also, here's a pic of the backside of an original Lockheed slave cylinder.