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Replaced some valve stem seals, 4.0 ohv with Pic's #4723766
04/11/18 03:06 PM
04/11/18 03:06 PM
Joined: Mar 2017
Posts: 778
Western Ma.
rollinpete Offline OP
rollinpete  Offline OP

Joined: Mar 2017
Posts: 778
Western Ma.
I'm posting this for those who may have the same problem and want to fix it.

My ride in the sig. was burning some oil, slowly more and more, about a quart every 3000 miles or so. I only noticed a puff of blue on start up sometimes and figured (was hoping) the valve stem seals were going bad. (Also was getting more and more pinging under load).
Two months ago I decided I'd change them out, Now two months later, about a 1000 miles and a couple cans of gumout, the dip stick still reads full and the pinging is almost totally gone.
Also the engine runs so much better.Took me two days to do the job.

I'm posting some picks of the engine and tools if any one considers doing this job.
Tools needed, compressor and the plug hole adapter not pictured, spring compressor,and I bought a cheap (valve stem seal puller and installer) but not really needed, pliers and a socket will work.




(Notice how worn the old seal to the left is) ^^^^
(And the seals on the right)





Pete.

97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive187k miles
03 Saturn Ion 2.2 L4 5spddrive238K miles
PPHM 5w30 and Fram Ultra x 2

Currently under the influence of oil shocked2

Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: rollinpete] #4723780
04/11/18 03:25 PM
04/11/18 03:25 PM
Joined: Mar 2016
Posts: 1,719
Toronto
PeterPolyol Offline
PeterPolyol  Offline

Joined: Mar 2016
Posts: 1,719
Toronto
Nice job man. Always love when the compressed air holds the valve with no problems.
Sidenote: Ford should have kept the 4.0L as OHV. I had a Ranger with that engine, miss the torque.


There's no replacement...'scosity for natural viscosity
Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: rollinpete] #4723826
04/11/18 04:10 PM
04/11/18 04:10 PM
Joined: Dec 2017
Posts: 1,737
US
JLTD Offline
JLTD  Offline

Joined: Dec 2017
Posts: 1,737
US
Nice job thumbsup


I use the overseas owner's manual to choose my oil.

Using AMSOIL

Hers: 2008 Jeep Liberty 143k, SS 5w30/Amsoil

His: 2015 4Runner 51k, OE 5w30/Wix

Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: rollinpete] #4723837
04/11/18 04:18 PM
04/11/18 04:18 PM
Joined: Mar 2015
Posts: 12,385
In the shop
53' Stude Offline
53' Stude  Offline

Joined: Mar 2015
Posts: 12,385
In the shop
Pete: very nice write up and great post smile

USA Canada



Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: 53' Stude] #4723879
04/11/18 05:01 PM
04/11/18 05:01 PM
Joined: Mar 2017
Posts: 778
Western Ma.
rollinpete Offline OP
rollinpete  Offline OP

Joined: Mar 2017
Posts: 778
Western Ma.
Originally Posted By: PeterPolyol
Nice job man. Always love when the compressed air holds the valve with no problems.
Sidenote: Ford should have kept the 4.0L as OHV. I had a Ranger with that engine, miss the torque.
Originally Posted By: JLTD
Nice job thumbsup
Originally Posted By: car51
Pete: very nice write up and great post smile

USA Canada


Thanks Guys.


Pete.

97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive187k miles
03 Saturn Ion 2.2 L4 5spddrive238K miles
PPHM 5w30 and Fram Ultra x 2

Currently under the influence of oil shocked2

Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: rollinpete] #4723943
04/11/18 06:17 PM
04/11/18 06:17 PM
Joined: Mar 2004
Posts: 21,834
Upstate NY
Donald Offline
Donald  Offline

Joined: Mar 2004
Posts: 21,834
Upstate NY
In the late 1960s I bought a Mustang with 289 that burned oil. I was 17 and I knew everything about cars and engines. Decided the valve stem seals needed to be replaced. Bought Perfect Circle ones. Then realized the area needed to be cut for the seals. Pulled the heads. Decided to lap the valves. Decided it would be better with a 3/4 grind cam. Bought a cam. Then wouldn't popup pistons be a good idea. How about the bearings, had crank turned. Engine was dirty, had it hot tanked. Months latter it was running, idled at about 1200. Would overheat in traffic.

So started with valve stem seals and went quickly down hill. Who knows if I needed to replace half the things I did.

Learned a lot. Sold the car and bought a 1969 Mach 1 Mustang with 351 Windsor.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: rollinpete] #4724016
04/11/18 07:45 PM
04/11/18 07:45 PM
Joined: Oct 2014
Posts: 13,297
Canyon County Idaho
CT8 Offline
CT8  Offline

Joined: Oct 2014
Posts: 13,297
Canyon County Idaho
OHV valve engines are so nice


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: rollinpete] #4724219
04/11/18 11:15 PM
04/11/18 11:15 PM
Joined: Mar 2005
Posts: 72
Boulder, Colorado
boulderdentist Offline
boulderdentist  Offline

Joined: Mar 2005
Posts: 72
Boulder, Colorado
Curious, may have missed but how many miles on the engine?

Scott

Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: boulderdentist] #4724236
04/12/18 12:05 AM
04/12/18 12:05 AM
Joined: Apr 2017
Posts: 1,791
San Rafael, CA
dogememe Offline
dogememe  Offline

Joined: Apr 2017
Posts: 1,791
San Rafael, CA
Originally Posted By: boulderdentist
Curious, may have missed but how many miles on the engine?

Scott


182k in his signature


2010 Ford Escape 2.5 ~94K Miles: Royal Purple 5W-30 + Wix 51348
2008 Ford Crown Vic P71 4.6 ~167K Miles: AMSOIL SS 0W-30 + Wix 51372
1995 Chevy Silverado 5.7 ~277K Miles: Delo 10W-30 + ACDelco PF52
Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: rollinpete] #4724262
04/12/18 01:14 AM
04/12/18 01:14 AM
Joined: Sep 2004
Posts: 8,011
Marshfield , MA
andyd Offline
andyd  Offline

Joined: Sep 2004
Posts: 8,011
Marshfield , MA
The Rat's odo resets at 999999.9 It shows 32K. It has a 4.0. Its off the road, but it hauls the trash to pickup on the street a 1400 foot round trip. I run it in 4 low with the hubs unlocked. The truck has had a hard life for 132K. I have done nothing to the engine since I bought it back in 7/12. Just fluids and filters. One oil change of dino 5w30 since. Runs like a watch. Won't pass inspection. Makes a heck of a wood mover though. I'd love a better example of the Rat. Its a beat up old truck holding a great little 60' V6.


'16 Camry LE STP synth 0w20 and STP filter. the Fridge

1994 Ranger ,the Rat, 5w30 dino, STP filter

'16 Camry SE, Valvoline HM 0w20 and OEM filter
Thick oil is better grin2
Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: rollinpete] #4725823
04/13/18 01:54 PM
04/13/18 01:54 PM
Joined: Mar 2010
Posts: 1,424
USA
SOHCman Offline
SOHCman  Offline

Joined: Mar 2010
Posts: 1,424
USA
I have never done this with the head installed, what do you do to keep the valves from falling into he cylinder? Not an issue?


I urge people not to wait 100K to change out the fluid in their transfer case units. -Kestas
Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: SOHCman] #4725870
04/13/18 02:44 PM
04/13/18 02:44 PM
Joined: Mar 2017
Posts: 778
Western Ma.
rollinpete Offline OP
rollinpete  Offline OP

Joined: Mar 2017
Posts: 778
Western Ma.
Originally Posted By: SOHCman
I have never done this with the head installed, what do you do to keep the valves from falling into he cylinder? Not an issue?

Wish I put this in the original post but I forgot.
You need a compressor and these attachments...Also start it at top dead center, I put my truck in 2nd gear with the e brake on, 5th would have been even better.Use a strong pen magnet or even some twizzers and make sure when you take off the valve spring retainer or (keeper's) there's some back pressure there, so that the valve does not fall into the cylinder. If you've never done this before watch a few youtube videos and read up on it .




Pete.

97 Ford Expl.Sport 4.0 ohv 4wd 5spddrive187k miles
03 Saturn Ion 2.2 L4 5spddrive238K miles
PPHM 5w30 and Fram Ultra x 2

Currently under the influence of oil shocked2

Re: Replaced some valve stem seals, 4.0 ohv with Pic's [Re: rollinpete] #4725987
04/13/18 05:08 PM
04/13/18 05:08 PM
Joined: Mar 2010
Posts: 1,424
USA
SOHCman Offline
SOHCman  Offline

Joined: Mar 2010
Posts: 1,424
USA
Cool idea! thanks


I urge people not to wait 100K to change out the fluid in their transfer case units. -Kestas
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