Brake Resevoir - Replacement?

[allzway]

Hello,

I am working getting my TR7 that I bought several years ago running and driving.

The master cylinder reservoir is cracked. I haven't found anyplace to just get the reservoir. Is there any place that just sells this reservoir?

I heard that maybe the MGB ones sold on Ebay would fit. They are almost cheap enough to try. Has anyone here tried before?



http://jp-motorsports.com

[Workshop Help]

Given the supreme importance of the Master Brake Cylinder, it is respectfully suggested you replace the entire unit with a new one given its age and amount of use.

There is a comprehensive article in The Workshop Manual on this topic for your perusal.

Mildred Hargis

[john 215]

Hi,

IF been left for any amount of time with no fluid in it then at least as a precaution I would strip the master cylinder down, inspect and fit a rebuild kit. As far as a reservoir, and I know not local to you, but try these gents should at least be able to supply a second hand one -

https://www.robsport.co.uk/

http://www.ss-preparations.co.uk/


Cheers John


LIVE LIFE A QUARTER OF A MILE AT A TIME!

1976 Speke FHC Beauty Now with an overdrive conversion

1979 3.5 FHC(STATUS PENDING!!)

1982 2.0 DHC NOW A 4.6, BUILT NOT BROUGHT !!!!

[scotty]

Hi all.
Yes the oblong MGB reservoir will fit as the casting blanks for both master cylinders are identical. However the MGB reservoir has a fair bit less capacity than the TR7 one. The wedge shaped MGB one definitely shouldn't be used IMHO as you would get hardly any fluid capacity for the front of the cylinder. I've seen some of the uprated master cylinder/servo kits shown with the oblong reservoir fitted.
Another option is the early SD1 reservoir, if you can find one. Its identical to the TR7 except for a bigger cap that incorporates a fluid level sensor.
Best of luck.



Scotty, South Australia.
1978 TR7 2.0 LT77
1981 XJS

[paulheritage]

I have the SD1 servo and master cylinder/reservoir on mine and very similar (bigger servo), though the outlet pipes are on the right rather than left so you need to amend the pipes.

Cheers Paul,

1976 TR7 2.0 FHC, ACG 2367 - Carmine Red (on the road)
1980 TR7V8 3.9 DHC, Orient Blue (on the road)
1977 TR7V8 4.0 FHC rally car, ACG 35005 - Tahiti Blue (complete, no MOT)
1976 TR7 2.0 FHC, ACG 3115 - Java Green (now sold)

www.TR7.co.uk

[auto_cran]

Hi Allzway,

Going back to your issue of a cracked master cylinder reservoir - I have the exact same problem. My crack is near the top, so I can only keep the reservoir about 3/4 full.

I looked and had a hard time finding just the reservoir - everyone wanted to sell the entire unit.

Rick over at SS Preparations took care of me and was able to locate the exact replacement reservoir and it was reasonably priced. Just took a while to get over the pond.

Chris
'76 Java Green FHC – a continued work in progress

[atc40]

When I bought my up rated brake servo from S&S several years ago, it came with a different shaped reservoir to the TR7 one.
As my original was in good condition I swopped them over.
I still have this new reservoir somewhere and you are welcome to it, just pay the postage.
If interested let me know and I will dig it out a take a picture for you.
Andy.

[allzway]

Thanks everyone... I probably will probably purchase a completely new unit.. it just gripes me to spend almost $300 to get a $10 part.

The master cylinder works fine, I just don't like the cracked top of the reservoir.



http://jp-motorsports.com

[FI Spyder]

As suggested I would rather spend a lot less on a good used one from Robsport or S&S Prep. Contrary to what most Americans think there has been an agreement since the Boston Tea Party that the Brits will ship (not actually ship as in the Cutty Sark)stuff to the US with out fear it will end up in the Bay. You do how ever have to understand the inevitable but not over bearing accent.[8D]

As the part is small and light you could ask them to ship via Royal Mail if a couple weeks is not a problem and cost is a concern or courier will get it there in a few days.





- - -TR7 Spider - - - 1978 Spitfire- - - - 1976 Spitfire - - 1988 Tercel 4X4 - Kali on Integra - 1991 Integra - Yellow TCT

[tr7sprint1]

<blockquote id="quote"><font size="1" face="Century Gothic, Verdana, Arial, Helvetica" id="quote">quote:<hr height="1" noshade id="quote"><i>Originally posted by allzway</i>

Hello,

I am working getting my TR7 that I bought several years ago running and driving.

The master cylinder reservoir is cracked. I haven't found anyplace to just get the reservoir. Is there any place that just sells this reservoir?

I heard that maybe the MGB ones sold on Ebay would fit. They are almost cheap enough to try. Has anyone here tried before?


<hr height="1" noshade id="quote"></font id="quote"></blockquote id="quote">


The MG reservoir will work.

I don't have a part number at the moment. Moss or Victoria motors in the USA sells them.



<b>"GETTING SPEED OUT OF A LOW POWERED CAR IS OFTEN MORE REWARDING, THAN WITH TIRE-SMOKING BRUTES" </b>
<h4><center>http://cliffstr7sprintconversion.blogspot.com/</center></h4>

[allzway]

I figured for the $10 for the late MGB reservoir it was worth the try and see how it works.

The lesser fluid would only matter if I were putting the car on track. It will just be an occasional driver.

http://jp-motorsports.com

[Workshop Help]

!!!W-H-O-A!!!

Pardon my inquisitive nature here, but, having viewed your website I see the TR7 in question ain't exactly your typical TR7. Not by a long shot! What gave it away were the dual exhausts in Photo 2, then the interior of Photo 3. This car is a hot rod sleeper and leaves me with the impression there are more than four 500cc cylinders in the engine bay. It used to be a 5-speed and now it uses an automatic gearbox. And, what's with all those toggle switches and mysterious buttons?

My friend, being your website features a whole bunch of competition accomplishments, your background and the initial impression of this TR7 leads me to opine that you know very well about vehicular performance with the need for equal braking safety, AND you have the financial where withal to afford proper equipment.

Please, my friend, most any kind of increase in the power output places a stock TR7 braking system over the edge of realistic safety. Please, my friend, spend the money and replace the entire braking system to suit the engines power. The stock U.S. Federal engine produced under 100BHP. In fact for your 1980 model, the amount was a paltry 89BHP. The stock braking system was built to accommodate a power output of about 120BHP at the most. The stock TR8 with it's pathetic stock 133 BHP and 148lbs of torque required significant alterations to the brakes.

My point is, do not allow your future widow to collect on the life insurance until you waste away in extreme old age. Forget about the MGB brake reservoir. Get yourself a braking system that will haul you down as fast as you got up there. Please!

Mildred Hargis

[allzway]

Mildred... You are correct on all accounts. This is just a stop gap to get the car running and driveable enough to get it to the paint shop.

I ultimately will put a big brake kit on the car and also why I hate to waste $300 on a master cylinder that I may very well scrap.

I purchased this car with a Buick V-6 already installed, but the wiring is a disaster.

My first two Tr7's, I put in a Ford V-6 and I am very familiar with their brake limitations.... so no need to worry... big brakes are the real future for the car.

http://jp-motorsports.com

[allzway]

Just clearing up an old thread about using the MGB reservoir in place of the stock TR7 resevoir.

It does in fact fit, but it is not a replacement for the TR7 reservoir.

It is much smaller, but the bigger issue is the angle of the TR7 master cylinder does not allow for the fluid to fill the front chamber of the MGB reservoir...therefore you can discount any possible use of this reservoir as a cheap replacement.



http://jp-motorsports.com