Land Rover 300 Tdi Wabco vacuum pump. Can it be repaired? Real time strip down

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Britannica Restorations Ltd
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[@rossjackson7134]

“And the cinema photographer of the year award goes to,,,,,” lol. Seriously Mike, I just replaced my vacuum pump and this has shed some light on the subject. Love your videos. If you get to Australia, give me a call, I owe you a beer, or several. Hahahahahahaha.

[@BritannicaRestorations]

Thanks Ross! Mike

[@michaelkennedy7832]

Hello Mike! This is a chance to to send you a 'thank you note'. We're at the end of a 3+ year restoration of an XMOD (BATUS) 110 and finally all is well. Much of the progress in the last 18 mos. we owe to you and these KZbin productions! Eg. The truck is now leak free! The 300Tdi transplant sings! etc. etc. So, many, many thanks. Mike K. in British Columbia. ps Chris Palmer says hello.

[@BritannicaRestorations]

Hi guys! I am working on some leak kits for your Rovers Consists of an oily cardboard mat, 1/2 gallon of sump oil and a sprayer with a long reach hose to spray into parts you cannot see but will guarantee that it will drip onto a part that is not leaking! Lol! Mike

[@johnchetwynd3618]

When I first bought my Defender seven years ago, I just thought that the poor brakes were down to it being a Land Rover. Then someone else drove it and said the brakes really needed looking at. I found the very cracks in the servo you mentioned, so that was replaced. The brakes were a little better, but still not brilliant. My next port of call was the vacuum pump. I bit the bullet and bought a genuine Wabco one and fitted it. The brakes were suddenly much improved, I was a very happy bunny. However, two weeks later I suddenly had a noise like a noisy tappet and I needed to be able to leg press 1 ton to stop the car 😱. The pump had failed. Fitted a new one and that lasted just over a year. Fitted another new one and that lasted two days. Another new one lasted just over a year again. The next new one was faulty straight out of the box. The next one again managed to last until just out of warranty. All of these pumps were all genuine Wabco ones. Guess what make pump is fitted now and has outlasted all the Wabco one’s. Yes, that’s right a Britpart one 😂

[@BritannicaRestorations]

That's not the first time I have heard Britpart ones are better than Wabco I see their latest stock is made in Turkey by Unipump

[@whitacrebespoke]

I had a 300tdi disco commercial that did masses of towing miles. That ate vac pumps on long runs almost as fast as drag links and anti roll bar links failed. It had about 5 pumps in 3 years I got fed up in finish and sling an after market one on. That pump is still on that engine now 10 years later

[@arbit3r]

After the second one I would have replaced with an electric unit.

[@russ3069]

MIKE, YOU CAN'T WIN UM ALL! THE JOYS OF MOTORING!! BUT WELL DONE, FOR GETTING IT STRIPPED DOWN.

[@oswaldocarvalho502]

Many thanks Mike K.!!! You help me to evaluate the condition of my pump.

[@rodrigotomita6473]

Hey mr. Mike, thank you for sharing. Here in Brazil lots of people choose to replace this vaccum system (300tdi) for the Ford hydraulic system (brake booster). The part number is 5c7z2005b. The fluid and pressure comes from the hydraulic pump (steering). Usually we use the original brake master cylinder from Land Rover. It could be replaced for the Ford master cylinder, but in this case, the brakes go insane. It is advisable to replace the seals, gaskets and pistons on the brake calipers for new ones.

[@BritannicaRestorations]

Almost all pickups are like that here so plenty of used available May be an interesting conversion for a customers car!

[@nikolayivanov6781]

Hello. Where can you read more about this?

[@rodrigotomita6473]

@@nikolayivanov6781 actually, i have never read about this online... but that is what people have been doing over here. It os not a huge mod, it simple, actually. Here in brazil, this system is native from f250 pick ups (hydrobooster).

[@kalaharibushwarrior]

I think we came to the same conclusion down here in Botswana. If it leaks, it is finished. I cannot remember though if I tried to fix one or if someone told me. I really like your videos. Keep up the good work. Making Land Rovers better.

[@BritannicaRestorations]

If it don't leak, it ticks badly ! can't win! Cheers! Mike

[@marcellocaggiano6010]

Thanks Mike great job, nice Vid. I'll send you a postcard :-)

Thanks again Mike 🤔 some we win and some we don't but still great video thanks 👍👍👍🇬🇧🇬🇧🇬🇧

[@richardcallison1637]

I need to replace mine. It leaks and is noisy (probably just like a new one😂) Always enjoy your videos, and this one was interesting albeit fruitless! Still, worth a watch none the less!! Thankyou👍👍

[@BritannicaRestorations]

If they are not noisy they leak - but looks like you have a matching pair!

[@mohammadnoormauludadnan1847]

Thank you for your land rover parts design failure reviews....Land Rover where adventures and catastrophic meets frequently. Using Japanese alternator driven pump is a good idea. I've seen that mod on 12J defender engine , at my friend workshop.

[@BritannicaRestorations]

Getting an alternator vac pump on a 300Tdi is difficult as there is not much room - on the HS2.8 they did, but the manifold and exhaust were completely different

[@mohammadnoormauludadnan1847]

@@BritannicaRestorations I'm currently on early stage of rebuild my own ex military 300tdi HCPU pickup.

[@rodyoca]

Hi mike. A little late but maybe this work for somebody. Y get the ford fiesta or ka (cant remember) (thats the names in ergentina). The internals are axactly the same except for the housing. It cost almost half the price and use the piston in the 300 tdi pump. Works very well more than 3 years ago. Buy im considering buy an alectric one next time it fails. Thanks for all the work you put in your videos, as i do almost all the mainteinace of my disco I 97. Bye

[@the_hamrat]

Those things are cursed! We've lost count of how many we've replaced on our 300 TDI in 15 years

[@andicog]

Mines leaking like a sieve, the oil finds its way onto the front prop that then distributes it everywhere to stop corrosion and it stops the neighbors parking in my space . . . . I was going to just fix the cap but looks like you've saved me the time! Been quoted under £50 for a decent replacement so that's not too bad, just hope I can get the old one off easily as mine has the 300tdi in the n/a position. Keep up the great videos Mike, love them all.

[@BritannicaRestorations]

If you have your 300 bolted to an LT77 you can get it off easy - bit fiddly

[@andicog]

@@BritannicaRestorations Thanks Mike, will pick a pump up tomorrow and sort it next week.

[@pathirajadissanayaka5424]

Thanks....

[@BritannicaRestorations]

You're welcome!

[@davejones9010]

Hi mike great vid, I would have thought getting those collets back in would be a nightmare anyway if it could be fixed.

[@BritannicaRestorations]

It was worth a look at the internals, but the good old days when you could buy pump parts have long gone

[@stevep8773]

I have another vacuum pump in my spares box. OK. I have two boxes for the 300tdi

[@federicoacker5672]

They are quite expensive around here , about U$S 350 to final costumer, but may be they sell parts. I didn't ask. I have a liking one too...

[@maddadjfb5109]

Thanks for the ingormatve video! Just what I needed for my research on how to fix it. Mine is also leaking on the flange part. If the piston seal is ok, how would you go about sealing the outer flange again and fixing it? Rivits again or maybe tap the holes and put in bolts?

[@BritannicaRestorations]

Glad it helped!

[@finbarrdolan]

Have you looked into fitting an electric one ? I believe the AUDI TT 8N3 ELECTRIC BRAKE ASSIST VACUUM PUMP is a good substitute for the Waco ones.

[@BritannicaRestorations]

I think these are becoming popular due to DIY electric car conversions

[@ferretboy221]

This design of vacuum pump was merely the start of the problems......Td5 units are good (alternator nose mounted)......but the discovery 3-4 tdv6 diesel vacuum pumps?......ho ho ho look up brake servo oil migration TSB ....its hilarious they basically fill the servo with engine oil as the pump runs of off the back of the cams right next to the cam bearing feed = no servo assist ......and puma's are oil fed from an alloy housing with a sandwich plate which becomes un-sandwiched and sprays oil all over the engine bay.....as said in the video the original upright pumps were bomb proof and they even used a modified version on the freelander diesels .

[@jamesbarker4808]

Am I correct in thinking the transit pumps are Wabco and been having similar issues?

[@gazzafloss]

I fitted an electric vacuum pump off an Audi S6 with a two litre vacuum reservoir and a vac switch off a Volvo, total cost $120 Au, no more oil leaking, noisy, weak, expensive Wabco.

[@BritannicaRestorations]

Part numbers please for the rest of us

[@gazzafloss]

@@BritannicaRestorations , both the vacuum pump and the combination vacuum switch/valve bought on eBay, (pump was a used item), the reservoir was a used non-refillable argon gas bottle. I'm a big fan of DIY, retired diesel fitter, learning a lot from your vids.

[@harveysmith100]

You said "you never see them on other Land Rovers? With a question mark. You have just showed us why Mike.

[@BritannicaRestorations]

I have not seen them on any other vehicle wonder why they could not have used a diaphragm pump?

[@harveysmith100]

@@BritannicaRestorations You may be confusing the office bods with facts and logic there Mike

[@steveplowman4005]

Hi, thanks for your video! I have heard of the alternator option just fitting, do you know of any models that use this so I can investigate? My ytd5 has a vac pump on the front of the alternator-no problems! Electric pump? Cheers Steve

[@BritannicaRestorations]

I considered a Japanese Alt with a vac pump at the back but there is not enough space, but a lot are fitting electric vac pumps now Like this for example www.amazon.ca/Dracarys-Electric-Vacuum-Booster-Brakes/dp/B07JM19XZ8

[@anthonyburrows2787]

Ever rebuilt a 200tdi rotary vac pump Mike? They seem to sell the parts to do them.

[@BritannicaRestorations]

Nope - I have not rebuilt one - they have been pretty good

[@jamesbarker4808]

Cracking video mike, we have discussed these in an email as vacuum pumps are the bane of my life, I find they don’t leak but have that horrendous ticking noise which goes up with the revs. My latest Bearmach one has only lasted 6 months before doing it. Am I correct in thinking that if it’s leaking it can only be the seal that is damaged so fixing the end cap is a waste of time? And what is in there to cause the horrendous ticking? As John C has said below I may well have to try a Britpart one this time, all knocked out in the same factory in Turkey I would guess. Have you found this a recent problem or from 1994 onwards? I have had a 300 for twenty years with no issues until the last three years or am I lucky. Thanks Jimbo.

[@BritannicaRestorations]

Jim They are all made in Turkey now I think Just had a look at the Britpart portal and ERR3539 is made in Turkey by Unipump approx £70 There is no OEM listed Genuine pump is £463.53

[@jamesbarker4808]

There is an Italian made one for 65.00 listed on eBay, worth a poke.

[@mattluszczak6567]

Should of been a vane type like the 200tdi. These issues are unheard of in the 200tdi model. Granted different pump. Different design

[@BritannicaRestorations]

They redesigned the oil pump on the 300Tdi to run off the crank, so there would be no drive for the vane pump which also drove the oil pump on the 200Tdi

[@mattluszczak6567]

I have read the unipumps are better. Has anyone bought brand new one then replacing rivets with bolts and nuts then removing core plugs replacing with threaded bolts! Core plugs?

[@BritannicaRestorations]

Has anyone tried and electric vac pump as they fit on retro fit electric cars? Could be interesting

[@DEUTZ_V8]

Hi Mike ... is it possible to use a belt driven vacuum pump as the same one used on Puma ? Needs lot os work and can be fitted on engines without AC ... ? Blanking plate on the block once old vacuum is removed ?

[@BritannicaRestorations]

Use an electric vac pump - much easier to install

[@g0fvt]

The vacuum pump on the back of the alternator in the old Tatas was not brilliant, when worn the oil could migrate onto the slip rings causing an intermittent connection which in turn fried the regulator. Any thoughts of just using a 12v vacuum pump? I think some Fords used them so that the braking system could be the same in a diesel car as that fitted to the petrol. This reminds me a lot of a friends Series 11, had a weird linkage and butterfly in the manifold to momentarily get vacuum from the diesel.

[@BritannicaRestorations]

I remember those old 2.25 vac valves and I have seen 12v pumps that they fit to electric cars but they need an accumulator

[@g0fvt]

@@BritannicaRestorations, thanks for the reply, I guess like many bright ideas it gets more and more complex, the 12v pumps are not direly expensive but usually need to be controlled by a separate vacuum switch....

[@pauldashwood2897]

Hi mike slightly off topic .is there a difference between a lt77 gearbox and a l77 gearbox please ...

[@BritannicaRestorations]

There is a difference with LT77 and LT77S ( LT = Leyland Transmission)

[@JeremyMAGNE]

So basically if it leaks it's toast. If it leaks from the plate or the core plug it's because oil is behind and that can only happen if the piston itself leaks...

[@BritannicaRestorations]

Yeap - in theory there should be no oil on the piston head side

[@bergatube60]

How muany miles has the LR with the bad vacuumpump been going ?

[@BritannicaRestorations]

No idea - was an imported engine

[@bigm383]

Thanks, mate, yes a failure, but still entertaining. At least it's more forge fodder.

[@BritannicaRestorations]

Funny thing was - this one was working and not knocking!

[@williamdavis6579]

Hi. Please could you tell me what parts number I need for a vacuum pump for my 2.5 TD engine. Thank you kindly

[@BritannicaRestorations]

www.lrworkshop.com/diagrams/land-rover-defender-engine/2.5td/vacuum-pump_53127

[@williamdavis6579]

@@BritannicaRestorations thank you Mike. You're a superstar. Merry Christmas

[@nickboylen6873]

They’re horrible pumps. Like you, I much prefer the rotary vane pump of the 12j-200Tdi. I have a 300tdi RR Classic, but the brakes are ABS powered brakes with an electric pump and accumulator - the vacuum pump is only connected to the EGR solenoid, so I’ll remove the innards following your instructions and refit it for cosmetic purposes as the EGR is already blanked.

[@coyote5735]

It makes you wonder why they never made it a serviceable item, there again it's hideously primitive. That piston seal is never going to be long-lived, it should have been made easily replaceable and could have been with a little more considered design.

[@BritannicaRestorations]

I have not see this design on any other motor

[@fastinradfordable]

For example the vw TDI using a gear driven vane pump. Mines got like 400k miles on it. But the old 1.6d used a diaphragm. That’s garbage. Always goes out.

[@federicoacker5672]

These pumps are made also in Argentina, (and I think in Brazil, too) to fit in Maxion engines made in Brazil. This is RM company link: www.rafaela-motores.com/index-en.php.

[@jamescunliffe9872]

At some point that pump will reincarnate after melting and make a land rover better!!!

[@BritannicaRestorations]

Indeed! It will come back!

[@dariuszrad4559]

Zaworki pasują od VW craftet 2.5 tdi

[@arbit3r]

This design is no where near as good as the 200tdi vane style. Edit: noticed you mentioned that at the end. Only reason I can see to a migration to this design is cost.

[@BritannicaRestorations]

When they designed the 300Tdi they put the oil pump on the front of the crank = the oil pump an vac pump was driven from a gear off the cam ( which used to drive the distributor on the petrols)

[@m721ac]

As soon as I read land rover I knew it couldn't be fixed...