Chain Tensioner on L20b

[benson64L]

Hey whats up, got a question about the chain tension for the timing chain. Can it be depressed with out taking the cover off?

[datzenmike]

If you have already removed the cam sprocket and loosened the chain without blocking the chain you are SOL. The cover will have to come off and the chain installed with the tensioner.

 

 

This is what you are up against: The tensioner has popped out and it's a snug fit with a very strong spring behind it.

[benson64L]

Word... thats shitty i was really hoping there was another way, thanks man

[datzenmike]

Drain coolant and remove rad and shroud.

Remove water pump and lower rad hose and fuel lines from the front.

Loosen the 24mm crank retaining bolt then set motor to TDC compression on #1.

Remove 24mm crank bolt and tap the back of the pulley with the socket and it will slide forward and off.

Remove the front and a few side oil pan bolts. This should allow you to slip the cover off without tearing the pan gasket.

Remove oil pump and distributor. Drive spindle will likely fall out no big deal.

Remove the 4 X 10mm bolts on the bottom front and sides of the head.

Loosen and remove cover bolts and slide forward and off.

[benson64L]

Cool thanks for the info. I was unsure if i was gonna have to take the head off.

[datzenmike]

The head gasket will be a tight fit but the front doesn't have to seal in anything but fumes and light oil spray in the chain area. Clean all gasket surfaces thoroughly. Do it right, do it once and you won't have any leaks later. Get a timing cover gasket and might as well change the crank seal around the pulley too. Put the timing cover gaskets on dry with a dab of RTV in the two top and two bottom corners where the head and pan meet it. A small smear on the pan and head gasket won't hurt but don't over do it like a chevy owner. Excess RTV will squish out inside and end up clogging the oil pick up screen so easy does it. If the surfaces are clean and degreased it will hold and seal just fine. Wipe the excess off the outside

[hang_510]

search "butterfly effect" for my results <_<

 

Remove the front and a few side oil pan bolts. This should allow you to slip the cover off without tearing the pan gasket.

if it hasnt been replaced in as long as the HG, be VERY delicate seperating so that it doesnt tear.

also clean off all the oil so it will reseal w/o leaking.

[robopineapple]

my friends neighbor caused this to happen to me today.... will be using this! awesome tips mike. 

[banzai510(hainz)]

YOu could splice in a oil pan gasket if it rips/ get another oil pan gasket and cut that section out and install on motor. Or seal with Blk RTV.

remember drip the oil pan a little

save this

[Stoffregen Motorsports]

I have been able to sneak them back in before using a looooong screwdriver and a piece of thick brazing rod. That's without removing the front cover. It is a royal pain, but it is possible.