Buying Advice 150 Perkins diesel blowby

[mllud]

I'm a shadetree mechanic, always done my own work and helped out friends. Just never been that far into an engine before. Might do some researching and give it a try, only one way to learn.

You just have to check and double check each move you make. Treat the bearings like they are glass. They are soft. Only use lint free towels to wipe things down. Keep everything clean. One speck of grit can cut a grove in your new bearing and crankshaft journal. You may know all this.
There are some hacks and some good mechanics on utube but you can still get the idea of how things are done.

These sleeves are a hand press in. With loctite at top and bottom of the liner. They are only .045 thick. Mine have the .040 top lip. I'm making sure they press in right. No hammer! My sleeve that failed and dropped into the pan may have been cracked at the top lip on installation. My liners are cast with chrome finish. Brittle. Your liners will most likely be steel with the .150 top lip. Less brittle.
You can make a press to pull them in with threaded rod and round disks of the right diameter. I made one for a IH super c once. Used big pipe caps for rounds. You don't want them loose and not extremely tight. Wet sleeves need to be tighter than dry sleeves because wet sleeves make the coolant jacket. Dry sleeves fit into the cylinder that is the water jacket. You have dry sleeves.
You may want to have the machine shop that grinds your crank go ahead and install your cylinder liners for you. Depends on how confident you feel about doing it.

I watched a guy on utube use dry ice to shrink his liners and still had to hammer them in. HARD I wouldn't do that
They shouldn't go in that hard. A press would have been safer for the liner. Dry ice makes metal brittle. The hammer wasn't a good idea.

When I install my liners I'm going to heat my block with a gas fired salamander to about 200f and chill my liners in the freezer. That's how I install a starter ring on a flywheel. Expand one and shrink the other. It works.

I keep ratteling on about a engine rebuild and you have not decided to do one. I'm getting ready to assemble mine.
Just sharing what I've learned. You never want to stop learning.

 

[denchen]

I wonder if it would be worth checking the oil is good and fitting a double furrow plough on her and setting it in for about an hour doing some hard work. You say its been sitting around for some while, I`ve known some engines that blow if they haven't been doing a bit of work.

 

[Sam in TN]

I wonder if it would be worth checking the oil is good and fitting a double furrow plough on her and setting it in for about an hour doing some hard work. You say its been sitting around for some while, I`ve known some engines that blow if they haven't been doing a bit of work.

I was thinking the same, but only have a 5' bush hog and that won't strain it at all. Also thought about pulling injectors and pouring some ATF/acetone mix down each cylinder for week or so.

Looks like injectors not easy to pull, do you have to remove gas tank first?

 

[denchen]

I`m not sure at this stage that I would start pulling her apart. Giving it a good drink of two stroke oil mixed in with the diesel, will make her smoke a bit, but might free every thing up and let things go. Acetone/ ATF are a bit strong. Its a pity you carn`t find something to make her work hard for an hour.

 

[Sam in TN]

Did some bush hogging for couple hours today, no difference in blowby. Think I'm going to go ahead and replace pistons, rings, liners. Anyone recommend a good kit to buy? Seems like Agkits.com are reasonable, but are they reliable?

 

[mllud]

Did some bush hogging for couple hours today, no difference in blowby. Think I'm going to go ahead and replace pistons, rings, liners. Anyone recommend a good kit to buy? Seems like Agkits.com are reasonable, but are they reliable?

I am no expert on o.e.m liners but the Laystall brand is made in England as the perkins is. I think they are o.e.m. I checked my liners for fit on my engine yesterday and have a fairly snug slip fit. That's correct by the book. I swapped the liners to other cylinders to check for consistancy and all three are consistent in fit and a very snug fit. Quality is very good in my opinion. I'm waiting on 680 lock tight I ordered for locking them in place then put it together..
My valve trane parts and bearings were Clevite. I believe also sold as o.e.m.

Your not talking valves. Do consider the cost is minimal. You could have worn guides. I pressed old out and new in. Ground seats and checked surface for flat. Refresh the whole head while you have it off. Loose valves contribute to blowby. especially if you get all that compression back with new pistons and liners. I'm not trying to convince you. Yes I am! You don't want to dissasemble twice.


Aggkits prices are good. I ended up ordering from Tractor Jo. I can't remember why. Also a good price.
Also look on Tractorbynet website.

 

[denchen]

Perkins here in Peterborough UK is a big established company. Here in the UK, I have found their spares reasonable priced. It might be worth contacting them direct on the internet. I would recommend a word of caution in that the 3152 was made in many variants.

 

[mllud]

Perkins here in Peterborough UK is a big established company. Here in the UK, I have found their spares reasonable priced. It might be worth contacting them direct on the internet. I would recommend a word of caution in that the 3152 was made in many variants.

Good point denchen. I hope you guys and gals in England are staying safe.
One critical variant in the 3-152 is the flange at the top of the liners. Mine has the .045 top flange. Later they went to a .150 top flange.
Your serial (engine) number is what determines what you need to order.

 

[mllud]

My big box that the kit came in says Sparex on it. You may be able to buy direct from them. So many vendors

 

[Industrial Toys]

GREAT tractor. I would look at the rest of the tractor to make a purchasing decision. Many tractors that age have every darn thing about them worn out and are no fun to own or operate (at any price). And certainly not worth putting time and money into.