| Author |
 Topic Search  Topic Options
|
jpi72 
Bronze Level
Joined: 27 Jul 2019
Location: Hudson, Iowa
Points: 42
|
 Post Options
 Thanks(0)
 Quote  Reply
 Topic: D 15 Series II engine question
Posted: Yesterday at 2:15pm |
I own an AC forklift with a D15 Series II (160 cu. in) engine. Cylinder 3 has zero compression currently. It happened quite suddenly. Does this engine have head problems? We are planning on taking the head off after Christmas.
Joel
|
 |
|
Sponsored Links
|
|
|
DSeries4
Orange Level
Joined: 12 Sep 2009
Location: Ontario, Canada
Points: 7564
|
Post Options
Thanks(0)
Quote Reply
Posted: Yesterday at 2:39pm |
|
It's a stout engine with no known issues. Could be a stuck valve? You won't know until you open it up.
|
|
'49 G, '54 WD45, '55 CA, '56 WD45D, '57 WD45, '58 D14, '59 D14, '60 D14, '63 D15D, '66 D15II, '66 D21II, '67 D17IV, '67 D17IVD, '67 190XTD, '73 620, '76 185, '77 175, '84 8030, '85 6080
|
|
DiyDave
Orange Level Access
Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 54637
|
Post Options
Thanks(0)
Quote Reply
Posted: 23 hours 24 minutes ago at 3:26pm |
#'s 2 and 3 are closest to the upright muffler. Could be as easy as rust hanging a valve open... 
|
|
Source: Babylon Bee. Sponsored by BRAWNDO, its got what you need!
|
|
steve(ill)
Orange Level Access
Joined: 11 Sep 2009
Location: illinois
Points: 89085
|
Post Options
Thanks(0)
Quote Reply
Posted: 22 hours 60 minutes ago at 3:50pm |
|
take the valve cover off and look at the valves now... then you can narrow down any work on the head ...
|
|
Like them all, but love the "B"s.
|
|
WF owner
Orange Level
Joined: 12 May 2013
Location: Bombay NY
Points: 5074
|
Post Options
Thanks(0)
Quote Reply
Posted: 21 hours 19 minutes ago at 5:31pm |
I have a D-15 II that I bought at the end of May 2025. It had a skip. When I did a compression check, #2 and #3 were down considerably on compression compared to #1 and #4. Here's what i found when I removed the head.
|
|
steve(ill)
Orange Level Access
Joined: 11 Sep 2009
Location: illinois
Points: 89085
|
Post Options
Thanks(0)
Quote Reply
Posted: 21 hours 9 minutes ago at 5:41pm |
|
since #2 and #3 are 180 degrees apart, you would think if the head gasket was blown, youi would have zero compression on both cylinders ?? ... when one cylinder is on COMPRESSION, the exhaust valve is open on the other cylinder..
|
|
Like them all, but love the "B"s.
|
|
WF owner
Orange Level
Joined: 12 May 2013
Location: Bombay NY
Points: 5074
|
Post Options
Thanks(0)
Quote Reply
Posted: 20 hours 53 minutes ago at 5:57pm |
|
It was a while back, but I believe I had about 60 psi on 2 & 3 and close to 150 on 1 & 4.
|
|
WF owner
Orange Level
Joined: 12 May 2013
Location: Bombay NY
Points: 5074
|
Post Options
Thanks(0)
Quote Reply
Posted: 20 hours 43 minutes ago at 6:07pm |
Here is a link to my post about it.
|
|
