Cat D7D restoration

diesel1

Member

Location

North Yorkshire

• Oct 27, 2018

• #1

I bought this Cat D7D out of euroauctions Leeds a week last thursday, i will be restoring it over the next few months. I will be posting regular updates and pictures on the progress of the restoration.
The D7 is running, but bleeding a lot of oil out of the exhaust, i put this down to spending too much time ticking over and not enough work.
This afternoon, drained the diesel tank, 2 gallons of water came out before there was any sign of any diesel, cant believe it was running with what came out of the tank.
After a 30 minute run around with fresh diesel in the tank, changed the engine oil and the cluch housing oil.
Tomorrow, weather permitting, she will be put into some hard work for the day, before the strip down.

 

Guy_Incognito

Member

Location

Herefordshire

• Oct 27, 2018

• #2

We’ve a 17A here use it for moleing, keep an eye on the donkey oil. People leave the petrol on and it leaks into the oil thining it down and they wear the crank bearings easy way to see if yours is worn it will start on one cylinder then pick up on the second, hell of a motor in them the first blown engine CAT put in a tractor

 

diesel1

Member

Location

North Yorkshire

• Oct 27, 2018

• #3

The donkey engine oil looks clean, but will be getting changed in a day or so anyway. It starts up quiet good, even on the hand crank.

 

Mursal

Member

• Oct 27, 2018

• #4

If you dont mind me asking, how will you know by starting it on one cylinder?
Hear the rattle?

 

Guy_Incognito

Member

Location

Herefordshire

• Oct 27, 2018

• #5

Yes they make a good rattle, there’s a chap over Newark way Rob Wilson he rebuilt ours, he has a shed full of donkey engines and a lot of cat crawlers 70+ I would say, also @diesel1 have you got the final drive track frame gaurds?

 

Richard Devon

Member

Mixed Farmer

Location

Down on the edge of the world

• Oct 27, 2018

• #6

Don't want to be the bringer of bad news but my D4D used to chuff oil out the chimney......turned out to be broken rings

 

Mursal

Member

• Oct 27, 2018

• #7

Well hard work wont cure that !!
Hopefully only glazed, from tipping about .............

 

Guy_Incognito

Member

Location

Herefordshire

• Oct 27, 2018

• #8

John moore’s Or JAYTRAC for engine parts

 

S

startinghandle

Member

• Oct 27, 2018

• #9

is the engine breather clear?

 

S

startinghandle

Member

• Oct 27, 2018

• #10

and is it breathing heavy?

 

S

startinghandle

Member

• Oct 28, 2018

• #11

what spec oil did you refill with?

 

diesel1

Member

Location

North Yorkshire

• Oct 28, 2018

• #12

Not breathing heavy, just glazed bores i think, if it needs build so be it! im using sae 40 oil, a little light for the donkey engine as it never gets that warm.

 

diesel1

Member

Location

North Yorkshire

• Oct 28, 2018

• #13

Guy_Incognito said:

Yes they make a good rattle, there’s a chap over Newark way Rob Wilson he rebuilt ours, he has a shed full of donkey engines and a lot of cat crawlers 70+ I would say, also @diesel1 have you got the final drive track frame gaurds?

Click to expand...

Thats good to know, was woundering where to get parts for donkey engine if needed

 

Last edited: Oct 28, 2018

Timo@hattonfarms

Member

Location

Warwickshire

• Oct 28, 2018

• #14

Don’t know how far you are going with the strip down track frames off?. I’m currently doing up a D4C was just going too be a quick blast over and spray.
Now got both track frames off and the final drives in bits. I would thoroughly recommend having the sprockets pulled and whipping off the final drive covers, if I hadn’t I would be non the wiser too my chipped pinion shafts and worn sprocket hubs.
It’s just not worth ignoring as I’m sure @Richard Devon would agree knowing how far him and TC have been In to his D4

CAT’s do have a knack for bitting you (no pun intended)

 

Lincs Lass

Member

Location

north lincs

• Oct 28, 2018

• #15

Jim @united parts, Kirton in lindsey has a shed full of cat parts, a lot goes to export

 

S

startinghandle

Member

• Oct 28, 2018

• #16

diesel1 said:

Not breathing heavy, just glazed bores i think, if it needs build so be it! im using sae 40 oil, a little light for the donkey engine as it never gets that warm.

Click to expand...

thanks for interesting reply.... I am going to follow this with great interest as I would like to find a Cat crawler not a big machine though but a small Cat 10

 

nick...

Member

Arable Farmer

Location

south norfolk

• Oct 28, 2018

• #17

Looking foreward to following this thread
Nick...

 

Richard Devon

Member

Mixed Farmer

Location

Down on the edge of the world

• Oct 28, 2018

• #18

startinghandle said:

thanks for interesting reply.... I am going to follow this with great interest as I would like to find a Cat crawler not a big machine though but a small Cat 10

Click to expand...

There was a Cat 10 on ebay back in Sept and the other day a Cat 22 came up on my FB for sale feed........might be worth asking on the FB Link Club page, someone may know of something

 

Richard Devon

Member

Mixed Farmer

Location

Down on the edge of the world

• Oct 28, 2018

• #19

Timo@hattonfarms said:

Don’t know how far you are going with the strip down track frames off?. I’m currently doing up a D4C was just going too be a quick blast over and spray.
Now got both track frames off and the final drives in bits. I would thoroughly recommend having the sprockets pulled and whipping off the final drive covers, if I hadn’t I would be non the wiser too my chipped pinion shafts and worn sprocket hubs.
It’s just not worth ignoring as I’m sure @Richard Devon would agree knowing how far him and TC have been In to his D4

CAT’s do have a knack for bitting you (no pun intended)

Click to expand...

Yes, agree entirely with your words. There were times when I could have phoned Gormans to take it away, every part seemed to be another can of worms.....but hey-ho......I call it my D4D training course

 

diesel1

Member

Location

North Yorkshire

• Oct 28, 2018

• #20

What a difference 2 hours of hard work does. Stopped leaking oil out of the exhaust and sounds a lot sweeter.