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May 06, 2013, 11:46:36 PM
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Author Topic: Rod Knock???  (Read 7983 times)

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Pintony

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Rod Knock???
« on: September 28, 2007, 03:02:00 AM »
Hello group,
 Getting ready for a show tomorrow I washed and waxed my all original Green Pinto.
 The Pinto I had at Carlisle and Tulsa..
 Well for NO reason the engine developed a Knock today about 6pm?
 Again there is NO reason for the knock so I am confused It was running perfectly fine at 5:30.
 The oil was about a quart low but I got no light??
Anyway I'm done for tonight I hope to have the NEW engine in & ready for the show  by tomorrow at 3:00 or I will only have 2 Pintos at the show... This Pinto has been there 5 years in a row...
 I'll let you guys know what I found on sunday after the show...From Pintony


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Offline TIGGER

Re: Rod Knock???
« Reply #1 on: September 28, 2007, 03:08:01 AM »
That sucks.  Are you going to repair the original engine and put it back in eventually?
79 4cyl Wagon
73 Turbo HB
78 Cruising Wagon (sold 8/6/11)

Pintony

  • Guest
Re: Rod Knock???
« Reply #2 on: September 28, 2007, 03:18:24 AM »
Hey Tigger,
 Yes my Plan is to re-build the original block and head to factory spec. except for a -.010 head shave to bring the C.R. up a bit.
 I will also have hardend exhaust seats installed so I do not have to buy leaded  racing fuel to blend with un-leaded to keep the valves happy...
I just hope everything goes smooth tomorrow so I do not have to leave this Pinto behind...
 I have a Hot Rod 2.0 on the engine stand.
 I will be installing the engine that I took out of the Purple Pinto.
 It is a High comp block + cam an oversize valves.
 I hope the cam is not too big for the automatic...
 I would just install a NEW crank... I have several already ground 10-10 and bearings on hand. BUT I need to flush the engine oil gallerys as I found junk in the pan,
 Anyway wish me luck!
 From Pintony

Offline TIGGER

Re: Rod Knock???
« Reply #3 on: September 28, 2007, 03:23:24 AM »
Good Luck, I am sure you will git r done 8)
79 4cyl Wagon
73 Turbo HB
78 Cruising Wagon (sold 8/6/11)

Pintony

  • Guest
Re: Rod Knock???
« Reply #4 on: October 08, 2007, 11:45:40 PM »
Hello Group,
 Here is the fresh clean engine bay from my Green 72 Pinto.
 I'll pick up my block from the machine shop on thursday with a fresh hone on the cylinders. "They were only .001 out." and a fresh deck on the block...
 Once home I will install NEW rings and bearings and all NEW gaskets and seals.
I will drop my Cylinder head at the same time I pick up my block for a fresh deck and a good cleaning.
I hope to have the engine painted and ready to install B4 the snow flys so it will be ready for the spring show season.
 I'll keep you guys posted with photos and my progress..
 From Pintony

Pintony

  • Guest
Re: Rod Knock???
« Reply #5 on: October 09, 2007, 12:18:54 AM »
hELLO gROUP,
 hERE i HAVE REMOVED THE ROCKERS FROM MY 2.0 HEAD SO ALL THE VALVES WOULD BE CLOSED.
 i FILLED THE CUMBUSTION CHAMBERS WITH BRAKE FLUID.
 AS YOU CAN SEE IN THE PHOTO ALL BUT #2 CYLINDER HAVE A leak at the exhaust valve. The valve seats will also get some attention as will the valves.
 The intake valves seem to be holding back the brake fluid.
 From Pintony

Offline TIGGER

Re: Rod Knock???
« Reply #6 on: October 09, 2007, 02:16:39 AM »
The engine compartment looks darn nice!  Interesting trick with the brake fluid.  I will have to remember that one  ;D  One up for Pintony.
79 4cyl Wagon
73 Turbo HB
78 Cruising Wagon (sold 8/6/11)

Pintony

  • Guest
Re: Rod Knock???
« Reply #7 on: October 09, 2007, 02:28:26 AM »
Thanks Tigger,
 I have most of the parts cleaned and ready for primer and paint.
I am real anxious to see how the Green Pinto runs after this...
 Hopefully real peppy!   :fastcar:
I having -.010 taken off the block and -.010 off the head so I should be up to a good 9.0 CR when I'm done.
I will also do  a tranny flush, filter,& gasket while I have the Pinto down for repair.
 
 I want to take the Mustard Pinto and the Green Pinto to the strip and race them.
 Everyone in St louis will be talking about it for weeks....
 From Pintony

Offline Srt

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Re: Rod Knock???
« Reply #8 on: October 09, 2007, 05:16:28 AM »
take a grinder to the valve pockets while you have it off
the only substitute for cubic inches is BOOST!!!
Of course money helps too!!!

Pintony

  • Guest
Re: Rod Knock???
« Reply #9 on: October 09, 2007, 08:03:29 PM »
take a grinder to the valve pockets while you have it off

 Hello SRT,
 This engine is for my all original Green Pinto...
 I am running the stock intake and exhaust manifold. in an Automatic transmission car. To do any porting on the head would hurt performance.
 The engine ran good B4 the head gasket blew so now that the bore is fresh and the valves will have fresh seats it should run better than ever..
I am hoping to get the best running "STOCK" 2.0 I can have for reliability.
the only change I am making is to the CR, as I think that 8:0 to 1 is too low.
 The 1971 2.0 was rated at 100HP and 9.0 to 1 CR. I am looking to get my CR up a bit and that 100HP would be fine with me....
 That 100 is at the engine not the rear tires so YES it will still be slow.... :police:

From Pintony

Pintony

  • Guest
Re: Rod Knock???
« Reply #10 on: October 12, 2007, 12:56:22 AM »
Hello Group,
 Here is a photo of my Green Pinto's 2.0 block just back from a fresh hone and a -.010 deck.
 Everything checked out OK. New freeze plugs are also installed.
 I picked up my engine block today as a present to myself...
 The top of the block was out by .008 so the -.010 just took care of the shade tree IDIOT that replaced the head gasket.
 From Pintony

Offline earthquake

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Re: Rod Knock???
« Reply #11 on: October 15, 2007, 12:27:43 PM »
Hey Tony
         Did you find the knock.
73 sedan parts car,80 crusin wagon conversion,76 F 250 460 SCJ,74 Ranchero 4x4,88 mustang lx convertable,and the readheaded step child 86 uhhh Chevy 4x4(Sorry guys it was cheap)

Offline FCANON

Re: Rod Knock???
« Reply #12 on: October 15, 2007, 02:06:09 PM »
I prefer to deck a block than a head for compression... I take as little as possible off the head...
Paint it pretty Tony...

Frank

Pintony

  • Guest
Re: Rod Knock???
« Reply #13 on: October 15, 2007, 09:06:03 PM »
Hey Tony
         Did you find the knock.

Hello earthquake,
 The only thing I found was a head gasket blown.
 SO FAR... everything else has checked out OK.
 AGAIN I have not re-assenbled the block to know how the bearings will check out.
 I will keep everyone posted as I do the rebuild.
 From Pintony

Offline earthquake

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Re: Rod Knock???
« Reply #14 on: October 15, 2007, 09:19:07 PM »
Did it blow between 2 cylinders.That will knock like crazy.
73 sedan parts car,80 crusin wagon conversion,76 F 250 460 SCJ,74 Ranchero 4x4,88 mustang lx convertable,and the readheaded step child 86 uhhh Chevy 4x4(Sorry guys it was cheap)

Pintony

  • Guest
Re: Rod Knock???
« Reply #15 on: October 15, 2007, 09:30:13 PM »
Hey earthquake,
 I had another subject line "Well there's your problem"
 I bumped it for U.
 From Pintony

Offline Original74

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Re: Rod Knock???
« Reply #16 on: October 15, 2007, 10:28:04 PM »
I think the knock is the rocks in Tony's head rattling at high speed!

1974 Sedan, 'Geraldine', 45,000 miles, orange and white, show car.
1976 Runabout, project.
1979 Sedan, 'Jade', 429 miles, show car, really needs to be in a museum. I am building him one!
1979 Runabout, light blue, 39,000 miles, daily driver.

Offline High_Horse

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Re: Rod Knock???
« Reply #17 on: October 15, 2007, 10:32:27 PM »
You may be incorrect here Dave...That would be a Knod Rock. :read:

                                                                                                     High_Horse
Started with a Bobcat wagon. Then a Cruising wagon. Now a Chocolate brown 77 wagon. I will enjoy this car for a long time. I'm in. High_Horse

Offline Srt

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Re: Rod Knock???
« Reply #18 on: October 16, 2007, 04:58:07 AM »
Hello SRT,
 This engine is for my all original Green Pinto...
 I am running the stock intake and exhaust manifold. in an Automatic transmission car. To do any porting on the head would hurt performance.
 The engine ran good B4 the head gasket blew so now that the bore is fresh and the valves will have fresh seats it should run better than ever..
I am hoping to get the best running "STOCK" 2.0 I can have for reliability.
the only change I am making is to the CR, as I think that 8:0 to 1 is too low.
 The 1971 2.0 was rated at 100HP and 9.0 to 1 CR. I am looking to get my CR up a bit and that 100HP would be fine with me....
 That 100 is at the engine not the rear tires so YES it will still be slow.... :police:

From Pintony
tony i don't think it will hurt at all.  especially if you concentrate on the pocket under the exhaust valve.  you're eliminating a restriction which will flow more volume through the port into the manifold with out losing the velocity of the exhaust gas charge.  throttle response will improve as will power and mileage (if you make a concerted effort to drive for mileage)

i did pretty much the same on my girlfriends '72 back in '72. ( cut the head, recurved dist)  her car had the automatic (with the 'right-off-idle stall speed convertor) and a 3:18 rear gear and it really woke up that car. 
the only substitute for cubic inches is BOOST!!!
Of course money helps too!!!

Pintony

  • Guest
Re: Rod Knock???
« Reply #19 on: October 17, 2007, 01:16:44 AM »
Hello Group,
 I forgot my phone today and when I got home I had a message from the machine shop had called about my 2.0 cylinder head.
I hope it is not BAD news like a Crack or something. :angel: :'(
 I'll call in the morn and find out...

 From Pintony

Pintony

  • Guest
Re: Rod Knock???
« Reply #20 on: October 19, 2007, 01:41:45 AM »
OK! First the good news...
 The head is NOT cracked...
The bad news... The exhaust guides R shot and I have to have hardened seats installed on the exhaust valves
 So it will be another week or so B4 I get my engine put back together...
 From Pintony

Offline douglasskemp

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Re: Rod Knock???
« Reply #21 on: October 19, 2007, 11:10:25 PM »
I have to have hardened seats installed on the exhaust valves

Just one of those cases of "you might as well"...
I am sure it'll be much nicer not having to add the lead additive every gas up.

Good luck Pintony!
--Doug
1 Pinto, 2 Mustangs, 2 trucks and an 07 Freestyle.  Maybe I should thin the herd a bit? My classic cars are for sale!  I live in Tucson, AZ :D

You wish you were working on your car?  MINE were 2000 miles away! Mine are now for sale and the AZ originals are rust-free.

Pintony

  • Guest
Re: Rod Knock???
« Reply #22 on: October 20, 2007, 01:48:23 AM »
Thanks Doug!
 Funny thing is,,, this engine already had oversize valve stems installed and it only has 53,000 miles.
 3 cylinders were only out by .001 and 1 was out by .002
A bone-head machine shop must have reamed for bigger valve stems and BOTCHED the job???
 Thus resulting in the exhaust seats being beat-out beyond repair.

From Pintony

Offline High_Horse

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Re: Rod Knock???
« Reply #23 on: October 20, 2007, 02:56:20 PM »
Quote
Funny thing is,,, this engine already had oversize valve stems installed and it only has 53,000 miles.
That might explain the breeched head gasket. The one that failed in my car was a Felpro. The plot thickens.

                                                                                                                    High_Horse
Started with a Bobcat wagon. Then a Cruising wagon. Now a Chocolate brown 77 wagon. I will enjoy this car for a long time. I'm in. High_Horse

Pintony

  • Guest
Re: Rod Knock???
« Reply #24 on: October 27, 2007, 08:02:40 PM »
Hello Group,
Finally got some time to start the build on my Green Pinto 2.0.
 Here I have the crank in the block along with the rear seal.
 I am re-using the old bearings as this engine only has 53,000 miles.
All the main bearings were between .0015 and .00175 all the way across the bearing surface,
 I plasti-gage-ed all the main bearing and all the rod bearings.
 From Pintony

Pintony

  • Guest
Re: Rod Knock???
« Reply #25 on: October 27, 2007, 08:08:19 PM »
After assemblly of the block and crank, I cleaned up the old Pistons.
 Here I am using a ring grove cleaner.
 As the piston rings wear... Carbon fills the gap behind the ring.
 IF this step is not done the NEW rings will not fit in the lands and it will be REAL HARD to get the pistons back in the hole.
 Since this engine has only seen light-duity the buildup in the grooves were not bad at all.
From Pintony


Pintony

  • Guest
Re: Rod Knock???
« Reply #26 on: October 27, 2007, 08:10:25 PM »
Here is the B4 and after photo of the pistons after I finished cleaning them.

Offline oldkayaker

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Re: Rod Knock???
« Reply #27 on: October 28, 2007, 07:21:55 AM »
The assembly is looking good. 

Just wanted to make sure you were aware that the 2.0L crank thrust bearings can be installed backwards.  Unfortunately this engine is not made idiot proof here and sure enough I got one in backwards and ruined my crank.
Jerry J - Jupiter, Florida

Pintony

  • Guest
Re: Rod Knock???
« Reply #28 on: October 28, 2007, 08:20:16 AM »
The assembly is looking good. 

Just wanted to make sure you were aware that the 2.0L crank thrust bearings can be installed backwards.  Unfortunately this engine is not made idiot proof here and sure enough I got one in backwards and ruined my crank.

Hello oldkayaker,
 Hey!!! That is GREAT advice!!!!
You are 100% correct. The thrust bearing has to be checked carefully.
 I can see how installing the block side could easily be installed backwards and ruin your whole month.
 GREAT TIP!!!!
I think a 1-UP is in order! :D
From Pintony

Pintony

  • Guest
Re: Rod Knock???
« Reply #29 on: November 01, 2007, 01:28:51 AM »
I got thr 2.0 head for my Green Pinto back today..
Kinda Shiney!!!!
Can't wait to get this engine back together and do a BIG smokey BURNOUT!!!! ;D


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