Block cleaning.?

[raj]

this isnt about what to use to clean the engine block but more a case of what process?

ive always used a local enginnering firm to chemically clean the c1j cast iron blocks but im now wanting to know what the best method is to clean alloy blocks with built in liners?

i ask because everytime i have a c1j block chem cleaned i have to replace the small alloy core plugs as they dissolve during the process!!!
so obviously i dont want to be using the same method as i wont have an engine to pull back out the chemical tanks

im not one for cleaning the blocks myself as im abit anal like that and like them perfectly cleeean!

any ideas?

[clee]

I don't think there's another option if you want it that clean .Replacing core plugs aint the end of the world .If you're that anal you'd do it anyway unless it's a Z7U block .....................

[clee]

OOOOPS .......

I think I misread that but I'm pretty sure you can get the ali block chem cleaned .You will need to replace the plugs ......Or ultrasonic cleaning .

[raj]

hang on!!

are the f7r/f7p/b18ft blocks cast iron or alloy

[Andrew Cooke]

hang on!!

are the f7r/f7p/b18ft blocks cast iron or alloy

F

The F inline-4 family (for Fonte, French for cast iron) was the successor to the A family. Launched in 1981 on the Renault 9 and Renault 11, it has been the mainstay of Renault's engine lineup through the early 2000s in a succession of increasingly powerful petrol and Diesel variants in overhead camshaft configurations. It was also Renault's first production four-valve design. It is being replaced by the M engine.

• F1N/F2N/F3N: 1721cc
• F7P: 1764cc
• F3P: 1794cc
• F4P: 1794cc (evolution of the F3P, 16V with variable valve control on the inlet camshaft)
• F3R/F4R/F7R: 1998cc
• F5R: 1998cc (direct fuel injection - IDE - only 2 years in production, used in the Megane Coupé and the Laguna II)
• F8Q/F9Q: 1896cc

[raj]

F

The F inline-4 family (for Fonte, French for cast iron) was the successor to the A family. Launched in 1981 on the Renault 9 and Renault 11, it has been the mainstay of Renault's engine lineup through the early 2000s in a succession of increasingly powerful petrol and Diesel variants in overhead camshaft configurations. It was also Renault's first production four-valve design. It is being replaced by the M engine.

• F1N/F2N/F3N: 1721cc
• F7P: 1764cc
• F3P: 1794cc
• F4P: 1794cc (evolution of the F3P, 16V with variable valve control on the inlet camshaft)
• F3R/F4R/F7R: 1998cc
• F5R: 1998cc (direct fuel injection - IDE - only 2 years in production, used in the Megane Coupé and the Laguna II)
• F8Q/F9Q: 1896cc

ah thanks
ive always been under the impression that they where alloy i think its because the std colour of the c1j block[when stripped of std paint] is not the same as the f-series blocks which look an alloy colour
i didnt know iron looks grey/silvery.? i thought it was a very dark greyish colour

[Trevhib]

The F engine series information needs to be finessed (by someone appropriately qualified) and placed into the articles section of the website.

[clee]

Copyright The Master ..............



Posted: Tue Sep 26, 2006 9:21 pm Post subject: Renault engine codes first letter = engine type

A: Aluminium cylinder block. lateral camshaft
B: Cast iron cylinder block- 3 bearings
C: Cast iron cylinder block - 5 bearings
E: Cast iron cylinder block. overhead camshaft
F: Cast iron cylinder block. dry liners
J: Aluminium block. overhead camshaft
S: Soffim diesel
Z: Aluminium cylinder block. 6 cylinders

second number = cylinder head type

1: Parallel valves - single carburator
2: Parallel valves - double carburator
3: parallel valves - injection
5: Semi - circular cylinder head - single barrel carb
6: Semi - circular cylinder head - double barrel carb
7: Semi - circular cylinder head - injection
8: Diesel with precombustion chambers (ricardo)
9: Diesel - direct injection

third number = cubic capacity CC

A: 000 to 825
B: 826 to 900
C: 901 to 975
D: 976 to 1050
E: 1051 to 1125
F: 1126 to 1200
G: 1201 to 1275
H: 1276 to 1350
J: 1351 to 1425
K: 1426 to 1500
l: 1501 to 1575
M: 1576 to 1650
N: 1651 to 1750
P:1751 to 1850
Q: 1851 to 1950
R: 1951 to 2050
S: 2051 to 2150
T: 2151 to 2300
you: 2301 to 2500
V: 2501 to 2750
W: 2751 to 3000
X: 3001 to 4000
why: 4001 to 6000
z: 6001 to ****

[paul b]

if the first 3 digits are followed by the letter S then its a service exchange engine and not the original....

the next 3 numbers denote the model of the engine with extra information if required....ie) designed for use on automatic transmission...

rule of thumb, if the last digit is even its for a manual box, if the last digit is odd its automatic

[Tiny Tim]

I've got an odd digit on mine Paul... looks like a clump of oil and dirt.... very odd indeed. I think its French.

[raj]

interesting info

can dry liners be removed? im assuming there press fitted

[paul b]

VERY SPECIALIST REPAIR ....

it can be done Raj, but you cannot buy these parts from renault and do it yourself

[raj]

VERY SPECIALIST REPAIR ....

it can be done Raj, but you cannot buy these parts from renault and do it yourself

is that a "you cant buy them, Period!!"..?

if the parts arent available from reno then where are they available.?
what engine shops would carry out such a job.?

[paul b]

it would be a very special job to remove them , then have new ones made to order and bored/ honed to suit the application...

it really isn't worth it if you can come across another complete engine for the price of 1 cylinder bore liner

I used to do this job at a specialist engine centre in Wolverhampton......back in the 80's it was few hundred in labour....guess that would make it around £800 mark...