Compression Test

[Manta356]

Done a Quick Compression Test on a Standard Dexta. I Got 290 on no1 Cyl and 300 each on no’s 2 & 3. I Know the Manual States that the Engine Should be Up to Temperature when doing it but I had the Injectors Out and Done it On a Cold Engine
Is that a bit Light or would it be ok for a Tractor for Light Work. I will be Removing the Engine to fit Gaskets anyway as I’m going to Paint it so maybe I’ll have a better idea of Engine Condition when I get the head off. Oil pressure is around 25 psi when Up to Temperature

[Billy26F5]

25 psi is a bit low, should be 40. The compression seems all right, but all cylinders should be far more similar to each other.
Sandy

[Manta356]

Redone the Compression test Today with the throttle open with the same results.
I then put a Little oil in the Cylinders and got 380 in 1 and 400 in the other Two.
So will have to check the liners,pistons and Rings when I get it Out.

[Emiel]

Hi,

This looks quite like the situation I was in. Low oil pressure and low compression. I ended up with fitting new bearing shells. Was lucky to have the diameter of the crank within specs. Pressed out the old liners and had a grove made in the block so new finished liners with flange could be pressed in. After all a not too bad job with reasonable costs. I ended up with a good starting, nice running tractor with good oil pressure.

Depending on where you're located parts for these engines are really affordable and then a rebuilt is cheaper then finding a tractor with a healthier engine.

[Manta356]

Depending on where you're located parts for these engines are really affordable and then a rebuilt is cheaper then finding a tractor with a healthier engine.
[/quote]

I'm Based in Ireland so Plenty Suppliers To Choose From.

[Manta356]

Took the Head off Today and Found a Cracked Liner on Cylinder No.1 which is Probably One Reason for the Lower Compression on that Cylinder.
Has Anyone Any Experience of the Agriline Supplied Engine Kits.I'm Wondering About the Quality of the Parts.

https://www.agrilineproducts.com/ford-f ... l-kit-7004

[Billy26F5]

I don't know about Dexta bits, but the Major kit is fine, although we have had them send the wrong bits several times. Replacing dry liners is not easy and tends to be expensive, as they have to be bored out to the correct size once fitted (3 1/2" bore).
Sandy

[Bluebilly]

I have bought a few kits for various engines DB, MF and grey Fergies and never had any problems with agriline engine parts.

[Emiel]

Hi,

In my opinion all the aftermarket parts come out of the same factory. Only the branding differs.

I was very happy with my Anglo agri parts, but can’t complain on other suppliers.

Some parts are rubbish, but suppliers must make compromises between being affordable and acceptable quality. Production in small volumes is really expensive.

I would not fit semi finished liners but only pre finished with flange. You’ll end up with 3.6” bore but that’s no problem technically.


Rgds

[Jerry Coles]

My liners etc came from Agriline many years ago and it's still going strong!!
Remember that the engine must be worked hard in the early days otherwise you get glazed bores. Used mine hard on a topper after a rebuild and it is fine 10+ years later.
Jerry