Hey guys, I'm really thinking I want to refresh the 6.0 I'm going to put into my 89. Even though it runs great, its got 127,000 miles on it, and one cylinder has 180lbs of compression. Seems dumb to not do a refresh while the engine is out. I want to put total seal rings in it. Total seal has asked me for bore size, and ring gland dimensions. Its a 94 6.0. Are the pistons bore size, and ring glands the same as a 5.3?

 

Yes as the 6.0l is only a stroked 5.3l.

 

Thanks so much! I will contact total seal, and get a set of rings on the way! The last V12 I rebuilt had to have all new exhaust valves due to serious stem wear, but the bearings, cylinder walls, pistons, showed no appreciable wear at all. I wound up leaving the original thrust washer, as the new one left greater end play than the original. I am hoping on this engine, to check all the bearings, figure out why 4B has a lower compression than all the other cylinders. I bought a new tensioner, and hope to just put new rings, timing chain, and whatever the heads need, then button back up, and drive it like I stole it, lol....

 

I am now a little confused. Seems there is a difference in ring gland width, and possibly depth from the 5.3 to the 6.0. Total Seal has suggested I wait until I disassemble the engine, and actually measure my pistons. I see this as maybe being my best option...at worst, by cylinders may be worn enough to need replacing along with the pistons, OR at best, can properly measure my pistons for exact ring gland and depth, and get the correct rings.

 

6.0 Pistons, rings and liners are totally different with 5.3. Be careful.

 

Thank you so much! To avoid buying parts I can't use, I figure it best to wait, measure them, then order the rings

 

i have installed at least 20 sets of Total seal rings,in different types engines.

but you should have a piston in hand and a good set of digital calipers, remove the factory rings, and measure your ring groove depth, mark it down(make sure grooves are clean of carbon etc).

then using the points of the calipers, carefully measure the groove width, in different areas around the groove,(possible,but not probable, groove could have some taper or damage, like detonation induced downward shape).

measure the liner bore,examine for something to talk about, most Jag 12s are close to bullet proof piston and liner, remember heat is the enemy.

mark everything down, TSR are great rings iv never had probs with them.

dont say i'm old,my 1st ring install was summer 1949, for a 1934 Ford roadster V8, (and NO i did not know what i was doing,just did it anyways!!

 

anyone know who developed the socalled gapless piston ring?

no not Total seal,, who else but the Germans,early 1930s!

Jumo 205 aircraft engine, had gapless piston rings,(more useless knowledge).

i'm always interested in the history of engine developments, kinda tells me the type of thought for that time frame.

 

Hi, I found this page by googling the same question =) I'm convertng a 5.3 in to 6L during a complete rebuild and have been looking for gapless rings. Standing with a liner and piston for each in each hand I can say the (UK) parts differ in:

Weight, 6L piston and pin are about 125g lighter
pin to crown height, 6L are shorter to maintain same deck height as 5.3 but with longer stroke
No oil drain holes behind the scraper on the 6L piston, very different scrapers
Ring thicknesses from crown to skirt are 6L: 1.66mm 1.66mm 3.10mm 5.3L: 1.74mm 2.14mm 4.10mm
Pin width and rods lengths look the same though 6L look more modern

Liners look interchangeable but the 6L are 3.3 mm shorter for some reason. I'll find out if they are because I need to use one 5.3 liner with the 6 crank.

Hope this is useful info, anything else let me know. AFAIK you might also find issues with mouting the gearbox as the hole pattern is different, unless you take the whole box too.

If you manage to get ring for the 6L could you possibly let me know the part numbers and where from please ? Thanks!

 

Forgot to say groove depths 6.0: 4.5mm 4.4mm 4.5mm 5.3: 4.4mm 4.4mm 4.1mm

 

Thanks for the corrections...!

 

Correcting myself again
Groove widths from crown to skirt are 6L: 1.66mm 1.66mm 3.10mm 5.3L: 1.74mm 2.14mm 4.10mm

 

Agree!!!


The best and in my opinion, is to measure and then order. One effort to rering a well worn Ford/mercury 59AB was a mess. But, it ran anyway, really well, except, lots of blowby and exhaust blue. But, that was the way it was before the effort.


The grooves wear!!!!


A school mate's dad ran a shop for the pro's. Just send in the rods and pitons. he would rering and rebush them and return for install. In summer Charles drove the truck around and did the pickup and returns. I don't know what he did as to bore condition??? Left to mechanic to measure and decide if in tolerance or not.


After that I did a couple of t's another V8, a landcruiser twice and another V8.


Cleanliness is everything.


Carl

 

The ring lands on the 6.0 pistons are different to the 5.3 I am not home ATM so do not have my book but I can look it up when I get home next week.

Edit: missed the other reply with the info you need